CN105219407A - Dry distillation of coal device - Google Patents

Abstract

The invention provides a kind of dry distillation of coal device that can manufacture the few destructive distillation charcoal of mercury content.Dry distillation of coal device possesses destructive distillation device main body (111), this destructive distillation device main body has the inner core (112) being supplied to dry charcoal (11) and the urceolus (113) covering inner core, the heated air (1) being supplied to urceolus is utilized to generate destructive distillation charcoal (12) and carbonizing gas (21) to the dry charcoal indirect heating in inner core, possess the adsorbing mercury dampening mechanism of the mercury contained by suppression carbonizing gas (21) to the absorption of destructive distillation charcoal, adsorbing mercury dampening mechanism is the vapor pipe (101) of being discharged by the gas in inner core, the gas entrance (101a) of vapor pipe (101) is configured in the length direction substantially central portion (112a) of inner core (112) and coal heating part and exports region (D1) between (112c).

Description

Dry distillation of coal device

The application is international application no PCT/JP2013/054496, and thenational phase application number 201380006554.6, on 03 14th, 2012 applying date, denomination of invention are the divisional application of the application of " dry distillation of coal device ".

Technical field

The present invention relates to the dry distillation of coal device of the dry distillation of coal of drying, especially useful when being applied to such Porous such as brown coal, sub-bituminous coal and the many low grade coal (grizzle) of moisture content carries out modification.

Background technology

The low grade coal (grizzle) that such moisture content such as brown coal, sub-bituminous coal is many, the thermal value of per unit weight is low, therefore makes its drying improve the thermal value of per unit weight by carrying out heat treated.

As the coal reforming apparatus such low grade coal being carried out to modification, such as, have and utilize heated air to the rotary kiln (Rotarykiln) of low grade coal indirect heating by the destructive distillation device of the indirect heating manner of its destructive distillation and external-heat.Described low grade coal becomes dry charcoal in the dried process of the leading portion of described rotary kiln, and this dry charcoal is fed into inner core.Described dry charcoal is become destructive distillation charcoal by indirect heating by destructive distillation, discharges this destructive distillation charcoal from described inner core.

Prior art document

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2003-176985 publication

Summary of the invention

The problem that invention will solve

But, by above-mentioned destructive distillation, produce the thermolysis gases (carbonizing gas) such as carbon monoxide, water vapour, methyl alcohol, tar from above-mentioned dry charcoal (low grade coal), also produce the trace ingredients gases such as mercury simultaneously.Above-mentioned rotary kiln is that destructive distillation charcoal is cooled off gradually when described discharge portion moves to above-mentioned dry the charcoal heating part of heating and the structure discharge portion that above-mentioned destructive distillation charcoal is discharged with distance.The destructive distillation charcoal cooled off can adsorb the mercury in carbonizing gas, and therefore the mercury concentration of the per unit weight of destructive distillation charcoal increases.

In view of the above circumstances, the present invention makes to solve above-mentioned problem, its object is to provide a kind of dry distillation of coal device that can manufacture the few destructive distillation charcoal of mercury content.

For solving the means of problem

Solve the dry distillation of coal device of the 1st scheme of above-mentioned problem, it possesses destructive distillation device main body, this destructive distillation device main body has the inner core being supplied to dry charcoal and the urceolus covering described inner core, the heated air being supplied to described urceolus is utilized to generate destructive distillation charcoal and carbonizing gas to the described dry charcoal indirect heating in described inner core

The feature of described dry distillation of coal device is,

Described dry distillation of coal device also possesses low mercury content destructive distillation charcoal generating mechanism, and this low mercury content destructive distillation charcoal generating mechanism passes through the mercury of suppression contained by described carbonizing gas to the absorption of described destructive distillation charcoal, generates the poor described destructive distillation charcoal of described mercury,

Described low mercury content destructive distillation charcoal generating mechanism is such preheating and drying mechanism: the leading portion being located at described destructive distillation device main body, utilize preheating heated air that the described dry charcoal indirect heating before described inner core supply is generated preheating and drying charcoal and gas to 280 ~ 350 DEG C in inside, and only described preheating and drying charcoal is supplied to described inner core, on the other hand, the described gas generated in inside is discharged outward directly to system.

Solve the dry distillation of coal device of the 2nd scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described low mercury content destructive distillation charcoal generating mechanism is the vapor pipe of being discharged by the gas in described inner core, and the gas suction port of described vapor pipe is configured between the length direction substantially central portion of described inner core and the outlet by the coal heating part of described heated gas heats.

Solve the dry distillation of coal device of the 3rd scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 2nd scheme, it is characterized in that, described dry distillation of coal device has the destructive distillation charcoal output mechanism of being discharged by described destructive distillation charcoal, and described dry distillation of coal device also possesses the vector gas feed mechanism to described destructive distillation charcoal output mechanism supply vector gas.

Solve the dry distillation of coal device of the 4th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 3rd scheme, it is characterized in that, described dry distillation of coal device possesses the heated air transfer mechanism described heated air of discharging from described urceolus carried to non-active gas feed mechanism.

Solve the dry distillation of coal device of the 5th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 4th scheme, it is characterized in that, described heated air transfer mechanism possesses: cool the cooling body of described heated air, to the purifying treatment mechanism being carried out purifying treatment by the cooled cooling gas of described cooling body, Purge gas transfer lime that will be carried to described vector gas feed mechanism by the Purge gas after described purifying treatment mechanism purifying treatment.

Solve the dry distillation of coal device of the 6th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described low mercury content destructive distillation charcoal generating mechanism be provided at described destructive distillation device main body leading portion, utilize the described dry charcoal indirect heating before the supply of inner core described in preheating heated air subtend and generate the preheating and drying mechanism of preheating and drying charcoal.

The dry distillation of coal device solving the 7th scheme of above-mentioned problem, based on the dry distillation of coal device of above-mentioned 6th scheme, is characterized in that, utilizes described preheating heated air that described dry charcoal is heated to 280 ~ 350 DEG C.

Solve the dry distillation of coal device of the 8th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described dry distillation of coal device has the destructive distillation charcoal output mechanism of being discharged by described destructive distillation charcoal, described low mercury content destructive distillation charcoal generating mechanism possesses: sorting equipment, and the described destructive distillation charcoal of discharging from described destructive distillation charcoal output mechanism is classified as the meal destructive distillation charcoal of the size of more than regulation particle diameter and is less than the micro mist destructive distillation charcoal of size of regulation particle diameter by it; Micro mist destructive distillation charcoal output mechanism, the described micro mist destructive distillation charcoal gone out by described sorting equipment classification is discharged by it.

Solve the dry distillation of coal device of the 9th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 8th scheme, it is characterized in that, described sorting equipment has the graded plate described destructive distillation charcoal being carried out to classification, and the communicating pores of described graded plate is 0.42mm ~ 2mm.

Solve the dry distillation of coal device of the 10th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described dry distillation of coal device has the destructive distillation charcoal output mechanism of being discharged by described destructive distillation charcoal, described low mercury content destructive distillation charcoal generating mechanism possesses: sorting equipment, it is configured between described inner core and described destructive distillation charcoal output mechanism, the micro mist destructive distillation charcoal of the meal destructive distillation charcoal described destructive distillation charcoal of discharging from described inner core being classified as the size of more than regulation particle diameter and the size that is less than regulation particle diameter; Micro mist destructive distillation charcoal output mechanism, the described micro mist destructive distillation charcoal gone out by described sorting equipment classification is discharged by it.

Solve the dry distillation of coal device of the 11st scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described dry distillation of coal device has the destructive distillation charcoal output mechanism of being discharged by described destructive distillation charcoal, and described low mercury content destructive distillation charcoal generating mechanism possesses the destructive distillation charcoal circulation that the described destructive distillation charcoal in described inner core is promptly circulated to described destructive distillation charcoal output mechanism side and promotes device.

The dry distillation of coal device solving the 12nd scheme of above-mentioned problem, based on the dry distillation of coal device of above-mentioned 11st scheme, is characterized in that, described destructive distillation charcoal circulation promotes that the leading section of device is configured near the furnace wall of destructive distillation charcoal relief outlet side of described urceolus.

Solve the dry distillation of coal device of the 13rd scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described dry distillation of coal device has the destructive distillation charcoal output mechanism of being discharged by the described destructive distillation charcoal in described inner core, described low mercury content destructive distillation charcoal generating mechanism is the plate body being fixed on described destructive distillation charcoal output mechanism and extending along the length direction of described inner core, and described plate body and described destructive distillation charcoal upper contact ground configure.

The dry distillation of coal device solving the 14th scheme of above-mentioned problem, based on the dry distillation of coal device of above-mentioned 13rd scheme, is characterized in that, described dry distillation of coal device also possesses the non-active gas feed mechanism supplying non-active gas in described destructive distillation charcoal output mechanism.

Solve the dry distillation of coal device of the 15th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described dry distillation of coal device has the destructive distillation charcoal output mechanism of being discharged by described destructive distillation charcoal, and described low mercury destructive distillation charcoal generating mechanism is provided at described destructive distillation charcoal output mechanism and the heating unit heated the described destructive distillation charcoal near this destructive distillation charcoal output mechanism.

Solve the dry distillation of coal device of the 16th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 15th scheme, it is characterized in that, described heating unit is burner.

The dry distillation of coal device solving the 17th scheme of above-mentioned problem, based on the dry distillation of coal device of above-mentioned 15th scheme, is characterized in that, described heating unit be configured to rotate and heated air can at the heat transfer tube of internal circulation.

Solve the dry distillation of coal device of the 18th scheme of above-mentioned problem based on the dry distillation of coal device of above-mentioned 1st scheme, it is characterized in that, described dry distillation of coal device has the destructive distillation charcoal output mechanism of being discharged by described destructive distillation charcoal, and described low mercury content destructive distillation charcoal generating mechanism is the oxygenant feedway to the described destructive distillation charcoal supply oxygenant near described destructive distillation charcoal output mechanism.

Invention effect

According to dry distillation of coal device of the present invention, by possessing low mercury content destructive distillation charcoal generating mechanism, mercury can be suppressed to remove to the absorption of destructive distillation charcoal or by destructive distillation charcoals many for adsorbing mercury amount, the destructive distillation charcoal that mercury content is few can be manufactured.

Accompanying drawing explanation

Fig. 1 is the schematic configuration diagram of the 1st embodiment representing dry distillation of coal device of the present invention.

Fig. 2 is the schematic configuration diagram of the 2nd embodiment representing dry distillation of coal device of the present invention.

Fig. 3 is the schematic configuration diagram of the 3rd embodiment representing destructive distillation charcoal producing apparatus of the present invention.

Fig. 4 is the schematic configuration diagram of the 4th embodiment representing dry distillation of coal device of the present invention.

Fig. 5 is the schematic configuration diagram of the 5th embodiment representing dry distillation of coal device of the present invention.

Fig. 6 is the graphic representation of the relation represented between the particle diameter of destructive distillation charcoal and adsorbing mercury amount.

Fig. 7 is the schematic configuration diagram of the 6th embodiment representing dry distillation of coal device of the present invention.

Fig. 8 is the schematic configuration diagram of the 7th embodiment representing dry distillation of coal device of the present invention.

Fig. 9 is the schematic configuration diagram of the 8th embodiment representing dry distillation of coal device of the present invention.

Figure 10 is the schematic configuration diagram of the 9th embodiment representing dry distillation of coal device of the present invention.

Figure 11 is the schematic configuration diagram of the 10th embodiment representing dry distillation of coal device of the present invention.

Figure 12 is the schematic configuration diagram of the 11st embodiment representing dry distillation of coal device of the present invention.

Figure 13 is the schematic configuration diagram of the 12nd embodiment representing dry distillation of coal device of the present invention.

Embodiment

By each embodiment, the embodiment for implementing dry distillation of coal device of the present invention is described.

Embodiment 1

The dry distillation of coal device of the 1st embodiment of the present invention is described based on Fig. 1.

The dry distillation of coal device of the present embodiment is rotary kiln, as shown in Figure 1, possesses the destructive distillation device main body 111 of indirect heating manner.Destructive distillation device main body 111 possesses: inner core 112, cover inner core 112 ground arrange urceolus 113 and inner core 112 is supported into revolvable supporting member 114.Urceolus 113 has the gas entrance (not shown) of reception heated air 1 and discharges the gas discharge outlet (not shown) of warmed-up for inner core 112 heated air 2.The region surrounded by urceolus 113 of inner core 112 forms coal heating part.Destructive distillation device main body 111 have to inner core 112 supply dry charcoal 11 feed portion 115, be located at the separator tank 116 of the open end of inner core 112 and be located at the hopper 117 of separator tank 116.

Destructive distillation device main body 111 also has the vapor pipe 101 of the gas in inner core 112, such as carbonizing gas 21 described later etc. being discharged.Vapor pipe 101 configures along the axle center of inner core 112 with extending.Gas suction port (leading section) 101a of vapor pipe 101 is configured at region D1, and this region D1 is the region that the temperature of the dry charcoal 11 length direction substantially central portion 112a (the length direction substantially central portion of urceolus 113) that reaches the inner core 112 of 400 DEG C and the coal heating part of inner core 112 of being located by the wall portion 113a of urceolus 113 export between 112c.This is because, side, feed portion 115 (the coal heating part entrance 112b of the inner core 112 of being located by the wall portion 113b of urceolus 113) is leaned on than the substantially central portion 112a of inner core 112 if be configured in by the gas suction port 101a of vapor pipe 101, then because the dry charcoal 11 of carbonizing gas 21 low with temperature (temperature not yet rises) contacts and tar condensing, this tar can hinder releases mercury from dry charcoal 11.On the other hand, lean on hopper 117 side if be configured in by gas suction port 101a than the wall portion 113a of the coal discharge side of urceolus 113, then destructive distillation charcoal 12 cools off, and carbonizing gas 21 contacts with the destructive distillation charcoal 12 cooled off and can adsorb the mercury in carbonizing gas 21.That is, by the gas suction port 101a of vapor pipe 101 is positioned region D1, the gas in inner core 112 can be suppressed thus more reliably to contact with the destructive distillation charcoal 12 cooled off.

It should be noted that, be linked with sucktion fan (not shown) etc. at the base end part of vapor pipe 101.Thus, by with the pumping velocity of regulation, such as aspirate gas especially carbonizing gas 21 in inner core 112 than the fireballing speed of coal (dry charcoal 11, destructive distillation charcoal 12) movement inner core 112 in, the gas in described inner core 112 can be suppressed to lead to separator tank 116 effluent from the coal heating part outlet 112c of inner core 112, and the gas in this inner core 112 can be discharged to outside system.That is, the gas in inner core 112 can be suppressed to contact with the destructive distillation charcoal 12 cooled off and be discharged to system from vapor pipe 101 by the gas in inner core.The diameter of vapor pipe 101 is set as the size gas in inner core 112 can discharged, and is set as the size that do not contact with the dry charcoal 11 in inner core 112.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described vapor pipe 101 and described sucktion fan etc.

The work of the dry distillation of coal device formed so is below described.

First, utilize the feed coal of drying installation (not shown) to the low grade coal such as brown coal, bituminous coal (not shown) etc. carry out drying treatment and become dry charcoal 11, dry charcoal 11 is supplied to feed portion 115.In inner core 112, supply dry charcoal 11 by feed portion 115 every specified amount.

On the other hand, the heated air 1 generated at roasting kiln (not shown) etc. is supplied in urceolus 113.Heated air 1 pair of inner core 112 heats, to dry charcoal 11 indirect heating in inner core 112.Thus, generate destructive distillation charcoal 12, and generate carbonizing gas 21.It should be noted that, heated air 1 is adjusted to and makes the temperature of the coal in inner core 112 (dry charcoal 11, destructive distillation charcoal 12) become 400 ~ 450 DEG C at outlet 112c place, coal heating part.Destructive distillation charcoal 12 moves to separator tank 116 side successively in inner core 112, discharges from separator tank 116 to hopper 117.Carbonizing gas 21 is discharged outside system via vapor pipe 101.By the position that the temperature gas suction port 101a of vapor pipe 101 being configured in region D1, i.e. coal (dry charcoal 11, destructive distillation charcoal 12) is high, carbonizing gas 21 high for mercury concentration can be discharged outside the forward direction system circulated near coal heating part outlet 112c thus.Thus, carbonizing gas 21 can be suppressed to contact with the coal cooled off (dry charcoal 11, destructive distillation charcoal 12).In addition, in the coal heating part of inner core 112 outlet 112c side (separator tank 116 side), the flowing of carbonizing gas 21 is contrary with the travel direction of coal, and flowing has the carbonizing gas 21 that mercury concentration is low, can prevent mercury from adsorbing to coal thus.Thus, the destructive distillation charcoal 12 of discharging to hopper 117 becomes the few charcoal of mercury content.

Below, by repeating above-mentioned work, the destructive distillation charcoal 12 that mercury content is few can be manufactured continuously.

Therefore, according to the dry distillation of coal device of the present embodiment, by being arranged in inner core 112 vapor pipe 101 being configured with gas suction port 101a, thus before contacting with the destructive distillation charcoal 12 cooled off, carbonizing gas 21 can be discharged, the absorption owing to contacting caused, in carbonizing gas 21 mercury with the destructive distillation charcoal 12 that this has cooled off can be suppressed, the destructive distillation charcoal 12 that mercury content is few can be manufactured.

Embodiment 2

The dry distillation of coal device of the 2nd embodiment of the present invention is described based on Fig. 2.

The present embodiment is the structure adding vector gas feedway in the dry distillation of coal device of above-mentioned 1st embodiment.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 1st embodiment.

As shown in Figure 2, the dry distillation of coal device of the present embodiment also possesses the vector gas feedway 121 as vector gas feed mechanism.Vector gas feedway 121 possesses for supply as the vector gas feedway main body 122 of the vector gas 31 of non-active gas (combustion exhaust etc. after such as nitrogen, off gas treatment such as removing mercury etc.) with send outlet with the gas of vector gas feedway main body 122 and the vector gas transfer lime 123 be communicated with hopper 117.

Vector gas 31 is adjusted to discharges destructive distillation charcoal temperature (such as 400 DEG C ~ 450 DEG C).If this is because, vector gas 31 is lower than 400 DEG C, then cooled by inner core 112, effciency of energy transfer is deteriorated.On the other hand, if vector gas 31 is higher than 450 DEG C, then to destructive distillation charcoal 12 heat supply, promote the destructive distillation of dry charcoal 11, the weight of destructive distillation charcoal reduces, and mercury concentration concentrates, and volatile quantity reduces, and becomes the destructive distillation charcoal of ignition quality difference.Therefore, by supplying the vector gas 31 of the temperature range of above-mentioned regulation, the cooling of the destructive distillation charcoal 12 near the coal heating part outlet 112c in inner core 112 can be prevented, reduce the mercury concentration in gas, suppress mercury to the absorption of destructive distillation charcoal 12.

The gas delivery volume that vector gas feedway 121 supplies vector gas 31 adjusts according to the gas traffic attraction of the above-mentioned sucktion fan linked with vapor pipe 101.If this is because, the gas delivery volume of vector gas 31 than the gas traffic attraction of described sucktion fan and the difference of carbonizing gas growing amount few, then vector gas 31 cannot play the effect suppressing the destructive distillation charcoal 12 that cooled off to contact with described carbonizing gas 21.On the other hand, if the gas delivery volume of vector gas 31 than the gas traffic attraction of described sucktion fan and the difference of carbonizing gas growing amount many, then vector gas 31 quantitative change in inner core 112 is many, may hinder the generation of destructive distillation charcoal 12.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described vapor pipe 101 and described vector gas feedway 121 etc.

The work of the dry distillation of coal device formed so is below described.It should be noted that, in the present embodiment, same with the dry distillation of coal device of above-mentioned 1st embodiment, supply dry charcoal 11 by feed portion 115 to the every specified amount of inner core 112.By dry charcoal 11 indirect heating be supplied in heated air 1 pair of inner core 112 of urceolus 113, generate destructive distillation charcoal 12.

Carbonizing gas 21 is generated along with the generation of above-mentioned destructive distillation charcoal 12.Now, control vector gas feedway 121 and in hopper 117, supply vector gas 31, on the other hand, control above-mentioned sucktion fan according to the growing amount of carbonizing gas 21 and the feed rate of vector gas 31, the gases such as the carbonizing gas 21 in inner core 112 and vector gas 31 are discharged by vapor pipe 101 outside system.Now, vector gas 31 contacts while circulate to vapor pipe 101 with destructive distillation charcoal 12.Therefore, near the coal heating part of inner core 112 outlet 112c, carbonizing gas 21 can be suppressed to contact with destructive distillation charcoal 12.Carbonizing gas 21 can be suppressed to lead to separator tank 116 effluent.Thereby, it is possible to suppress the mercury in carbonizing gas 21 to the absorption of destructive distillation charcoal 12.Therefore, the destructive distillation charcoal 12 of discharging to hopper 117 is the charcoal that mercury content is few.

Below, by repeating above-mentioned work, the destructive distillation charcoal 12 that mercury content is few can be manufactured continuously.

Therefore, according to the dry distillation of coal device of the present embodiment, there is the vector gas feedway 121 supplying vector gas 31 in hopper 117, in hopper 117, supply vector gas 31, carbonizing gas 21 can be suppressed thus to lead to separator tank 116 effluent.Consequently, the absorption owing to contacting caused, in carbonizing gas 21 mercury with the destructive distillation charcoal 12 cooled off can be suppressed, the destructive distillation charcoal 12 that mercury content is few can be manufactured more reliably.

Embodiment 3

The destructive distillation charcoal producing apparatus of the 3rd embodiment of the present invention is described based on Fig. 3.

The present embodiment is an example of the destructive distillation charcoal producing apparatus of the dry distillation of coal device applying the 2nd above-mentioned embodiment.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 2nd embodiment.

As shown in Figure 3, the destructive distillation charcoal producing apparatus of the present embodiment possesses above-mentioned destructive distillation device main body (inner core 112, urceolus 113), above-mentioned vapor pipe 101 and above-mentioned vector gas feedway 121, and possesses the drying installation 311, roasting kiln 321, refrigerating unit 331, prilling granulator 341, heated air e Foerderanlage etc. of indirect heating type.It should be noted that, the destructive distillation charcoal 12 generated in destructive distillation device main body 111 is transported to refrigerating unit 331.Destructive distillation charcoal 12 is cooled to below the temperature of regulation and makes cooling charcoal 13 by refrigerating unit 331, and cooling charcoal 13 is transported to prilling granulator 341.Cooling charcoal 13 is a granulated into prescribed level and makes goods 14 by prilling granulator 341, is discharged by goods 14.

The drying installation 311 of indirect heating type possesses the inner core 312 being supplied to feed coal 10 and the urceolus 313 covering the setting of inner core 312 ground.By supplying to urceolus 313 by the heated air 61 of interchanger 323 gained described later, thus feed coal 10 indirect heating in heated air 61 pairs of inner cores 312.Thus, generate dry charcoal 11, and generate dry gas 51.The gas discharge outlet of inner core 312 is communicated with the gas entrance of roasting kiln 321 described later via gas blower 314, and dry gas 51 is transported to roasting kiln 321 via gas blower 314.The coal relief outlet of inner core 312 is communicated with the coal supplying opening of the inner core 112 of above-mentioned destructive distillation device main body, and dry charcoal 11 is transported in the inner core 112 of described destructive distillation device main body.It should be noted that, the heated air 62 that the heating of inner core 312 utilizes is discharged to outside system.

Roasting kiln 321 has burner 322 and interchanger 323.The gas entrance of burner 322 is communicated with the gas discharge outlet of the vapor pipe 101 of above-mentioned destructive distillation device main body, and carbonizing gas 21, vector gas 31 are transported to burner 322.The gas discharge outlet of interchanger 323 is communicated with the gas entrance of the urceolus 313 of drying installation 311, is transported to the urceolus 313 of drying installation 311 in the heated air 61 of interchanger 323 generation.The gas discharge outlet of roasting kiln 321 is communicated with the gas entrance of the urceolus 113 of above-mentioned destructive distillation device main body, and the combustion exhaust produced at roasting kiln 321 to be transported to the urceolus 113 of above-mentioned destructive distillation device main body as heated air 1.

The gas discharge outlet of the urceolus 113 of above-mentioned destructive distillation device main body is communicated with via the gas entrance of air shooter 361 with the steam generator 351 as cooling body, and the heated air 2 that the heating of inner core 112 utilizes is transported to steam generator 351.Heated air 2 is cooled to below specified temperature by steam generator 351 and becomes a cooling gas 3.The gas discharge outlet of steam generator 351 was communicated with the gas suction port of gas blower 352 via communicating pipe 362.The gas discharge outlet of gas blower 352 is communicated with via the gas entrance of transfer lime 363 with exhaust gas purification and treatment device 353.That is, cooling gas 3 is transported to exhaust gas purification and treatment device 353 as purifying treatment mechanism via gas blower 352.Exhaust gas purification and treatment device 353 removes NOx, SOx, mercury, particulate matter (PM) and generate the Purge gas 4 purified from cooling gas 3.

The gas discharge outlet of exhaust gas purification and treatment device 353 is communicated with chimney (not shown) via Purge gas vent pipe 364.Be provided with flow rate regulating valve (T-valve) 354 in the midway of Purge gas vent pipe 364, flow rate regulating valve 354 is communicated with Purge gas transfer lime 365.Purge gas transfer lime 365 is communicated with vector gas transfer lime 123.That is, a part for Purge gas 4 is discharged by outside system via chimney.The remainder of Purge gas 4 is transported to vector gas transfer lime 123 via flow rate regulating valve 354, Purge gas transfer lime 365.Therefore, vector gas 31 and Purge gas 4 are fed in the inner core 112 of above-mentioned destructive distillation device main body as vector gas.

In such the present embodiment, form the heated air e Foerderanlage as heated air transfer mechanism by described air shooter 361, described steam generator 351, described communicating pipe 362, described gas blower 352, transfer lime 363, described exhaust gas purification and treatment device 353, described Purge gas vent pipe 364, described flow rate regulating valve 354, described Purge gas transfer lime 365, described vector gas transfer lime 123 etc.

Therefore, according to the destructive distillation charcoal producing apparatus of the present embodiment, by heat exchange and purifying treatment will be carried out to heated air 2 and the Purge gas 4 obtained is supplied in the inner core 112 of above-mentioned destructive distillation device main body together with vector gas 31, compared with the situation that all vector gas are supplied in addition, can seek energy-conservation.

Embodiment 4

The dry distillation of coal device of the 4th embodiment of the present invention is described based on Fig. 4.

In the present embodiment be the vapor pipe that possesses of the dry distillation of coal device replacing above-mentioned 1st embodiment and increase the structure of pre-heating and drying mechanism at leading portion.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 1st embodiment.

As shown in Figure 4, the dry distillation of coal device of the present embodiment possesses destructive distillation device main body 111, and possesses the pre-heating and drying mechanism 131 as preheating and drying mechanism of the leading portion being located at destructive distillation device main body 111.

Pre-heating and drying mechanism 131 is rotary kilns, possesses inner core 132, covers the urceolus 133 of inner core 132 ground setting and supported by inner core 132 as revolvable supporting member 134.Urceolus 133 has the gas entrance (not shown) of reception preheating heated air 6 and discharges the gas discharge outlet (not shown) of warmed-up for inner core 132 preheating heated air 7.Inner core 132 become coal heating part by the region that urceolus 133 surrounds.Pre-heating and drying mechanism 131 possess to inner core 132 supply dry charcoal 11 feed portion 135, be located at the separator tank 136 of the open end of inner core 132 and be located at the hopper 137 of separator tank 136.Gas discharge outlet 138 is provided with on the top of separator tank 136.Gas outlet pipe 139 is communicated with gas discharge outlet 138.

Destructive distillation device main body 111 possesses above-mentioned inner core 112, above-mentioned urceolus 113, above-mentioned supporting member 114, above-mentioned feed portion 115, above-mentioned separator tank 116 and above-mentioned hopper 117.Separator tank 116 is communicated with gas outlet pipe 119 via the gas discharge outlet 118 being located at top.The feed portion 115 of destructive distillation device main body 111 is communicated with the coal relief outlet of the hopper 137 of pre-heating and drying mechanism 131, and preheating and drying charcoal 15 is fed into the feed portion 115 of destructive distillation device main body 111.

In such the present embodiment, form described low mercury content destructive distillation charcoal generating mechanism by described pre-heating and drying mechanism 131 etc.

The work of the dry distillation of coal device formed so is below described.

First, utilize the feed coal of drying installation (not shown) to the low grade coal such as brown coal, bituminous coal (not shown) etc. carry out drying treatment and become dry charcoal 11, dry charcoal 11 is supplied to the feed portion 135 of pre-heating and drying mechanism 131.Feed portion 135 supplies dry charcoal 11 in the inner core 132 of pre-heating and drying mechanism 131 every specified amount.

On the other hand, the preheating heated air 6 generated at roasting kiln (not shown) etc. is supplied in the urceolus 133 of pre-heating and drying mechanism 131.Preheating heated air 6 pairs of inner cores 132 heat, to dry charcoal 11 indirect heating in inner core 132.Preheating heated air 6 is adjusted to the dry charcoal 11 making coal heating part export 132c place becomes 280 ~ 350 DEG C.Thus, generate preheating and drying charcoal 15, and generate preheating gas 22.At this, if dry charcoal 11 is heated to 350 DEG C, then release about 80% of the mercury in coal, therefore preheating gas 22 becomes the high gas of mercury concentration.Such preheating gas 22 is via separator tank 136, gas discharge outlet 138, gas outlet pipe 139 and discharging outside system.Preheating and drying charcoal 15 moves to separator tank 136 side successively in inner core 132, discharges to hopper 137.

Then, the preheating and drying charcoal 15 in above-mentioned hopper 137 is transported to the feed portion 115 of destructive distillation device main body 111.

Every specified amount ground, the feed portion 115 of destructive distillation device main body 111 supplies preheating and drying charcoal 15 to the inner core 112 of this destructive distillation device main body 111.On the other hand, the heated air 1 generated at roasting kiln (not shown) etc. is supplied in the urceolus 113 of apparatus main body 111.Inner core 112 heats by heated air 1, to preheating and drying charcoal 15 indirect heating in inner core 112.Heated air 1 is adjusted to the preheating and drying charcoal 15 making coal heating part export 112c place becomes 400 ~ 450 DEG C.Thus, generate destructive distillation charcoal 16, and generate carbonizing gas 23.Destructive distillation charcoal 16 moves to separator tank 116 side successively in inner core 112, discharges from separator tank 116 to hopper 117.Carbonizing gas 23 is discharged outside system via the gas discharge outlet 118 of separator tank 116, gas outlet pipe 119.

Preheating gas 22 high for mercury concentration is discharged and is obtained by above-mentioned preheating and drying charcoal 15 in pre-heating and drying mechanism 131, and therefore carbonizing gas 23 becomes the low gas of mercury concentration compared with preheating gas 22.Therefore, when coal in the inner core 112 of destructive distillation device main body 111 moves to hopper 117 side, even if contact with carbonizing gas 23 and adsorb the mercury in carbonizing gas 23, because the mercury concentration in carbonizing gas 23 is low, the destructive distillation charcoal 16 of therefore discharging to the hopper 117 of destructive distillation device main body 111 is still the charcoal that mercury content is few.

Below, by repeating above-mentioned work, the destructive distillation charcoal 16 that mercury content is few can be manufactured continuously.

Therefore, according to the dry distillation of coal device of the present embodiment, possess destructive distillation device main body 111 and be located at the pre-heating and drying mechanism 131 of leading portion of destructive distillation device main body 111, by pre-heating and drying mechanism 131 temperature (280 ~ 350 DEG C) that mercury coal caving ratio is about 80%, dry charcoal 11 is heated, release mercury from dry charcoal 11 and become preheating and drying charcoal 15, destructive distillation charcoal 16 is become by destructive distillation device main body 111 pairs of preheating and drying charcoal 15 indirect heating, thus, compared with manufacturing the situation of destructive distillation charcoal with use 1 rotary kiln in the past, the temperature of the preheating and drying charcoal 15 in pre-heating and drying mechanism 131 reduces and diminishes, mercury can be suppressed the absorption of coal, the destructive distillation charcoal 16 that mercury content is few can be obtained.

Embodiment 5

The dry distillation of coal device of the 5th embodiment of the present invention is described based on Fig. 5 and Fig. 6.

The present embodiment is the vapor pipe that possesses of the dry distillation of coal device replacing above-mentioned 1st embodiment and adds the structure of sorting equipment.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 1st embodiment.

As shown in Figure 5, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111, and possesses the sorting equipment 141 as the classification mechanism destructive distillation charcoal 12a described later discharged from hopper 117 being carried out to classification.

The sieve plate (graded plate) 143 that sorting equipment 141 possesses tank classifier 142 and is located in tank classifier 142.Tank classifier 142 is divided into main grading room 142a and secondary grading room 142b by sieve plate 143.Sieve plate 143 is configured in the below of the destructive distillation charcoal admission port of tank classifier 142.Sieve plate 143 rolls towards meal destructive distillation charcoal relief outlet and tiltedly configures.Sieve plate 143 has multiple communicating pores.The diameter of described communicating pores is set as the size specified such as being set as 0.42mm ~ 2.0mm.

Above-mentioned sorting equipment 141 also possesses micro mist destructive distillation charcoal vent pipe 144, gas conveyance drum blower fan 145 and air shooter 146.Micro mist destructive distillation charcoal vent pipe 144 is communicated with the micro mist destructive distillation charcoal relief outlet bottom the secondary grading room 142b of tank classifier 142, and is communicated with air shooter 146.Air shooter 146 is communicated with the gas feed port of gas conveyance drum blower fan 145, and is communicated with gas outlet pipe 119.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described sorting equipment 141 etc.Micro mist destructive distillation charcoal output mechanism is formed by described micro mist destructive distillation charcoal vent pipe 144, described gas conveyance drum blower fan 145, described air shooter 146 etc.

The work of the dry distillation of coal device formed so is below described.It should be noted that, in the present embodiment, same with the dry distillation of coal device of above-mentioned 1st embodiment, in inner core 112, supply dry charcoal 11 by feed portion 115 every specified amount.

Heated air 1 is supplied to urceolus 113.Thus, to dry charcoal 11 indirect heating in inner core 112, generate destructive distillation charcoal 12, and generate carbonizing gas 21.Destructive distillation charcoal 12 moves to separator tank 116 side successively in inner core 112.Carbonizing gas 21 moves to separator tank 116 side rand and destructive distillation charcoal 12 contact edge successively in inner core 112.Destructive distillation charcoal 12 cooled off before arriving separator tank 116 after the coal heating part outlet 112c of inner core 112, and adsorb a part for the mercury in carbonizing gas 21 correspondingly, become adsorbing mercury destructive distillation charcoal 12a, adsorbing mercury destructive distillation charcoal 12a discharges to hopper 117.Carbonizing gas 21 becomes low mercury content carbonizing gas 21a in destructive distillation charcoal 12 due to the adsorbing mercury in this gas 21, and low mercury content carbonizing gas 21a circulates to gas outlet pipe 119 via gas discharge outlet 118.

At this, about the adsorptive capacity of mercury to destructive distillation charcoal, the Fig. 6 with reference to the relation of the particle diameter and mercury content (mg/kg) that represent coal (destructive distillation charcoal) is described.As shown in Figure 6, can confirm, when the particle diameter of coal is below 0.42mm, mercury content is 0.028mg/kg, when the particle diameter of coal is 0.42mm ~ 2.0mm, mercury content is 0.024mg/kg, and when the particle diameter of coal is 2.0mm ~ 3.0mm, mercury content is 0.008mg/kg.That is, can confirm, the coal dust that mercury Preferential adsorption is large in specific surface area, particle diameter is little in carbonizing gas.

Then, be supplied on sieve plate 143 in the tank classifier 142 adsorbing mercury destructive distillation charcoal 12a (micro mist destructive distillation charcoal 12aa, meal destructive distillation charcoal 12ab) in hopper 117 being transplanted on sorting equipment 141.Non-active gas 32 is transported to air shooter 146 with the gas flow rate of the classification that can produce adsorbing mercury destructive distillation charcoal 12a by gas conveyance drum blower fan 145.Thus, produce negative pressure at the secondary grading room 142b of tank classifier 142, utilize sieve plate 143 to carry out the classification of destructive distillation charcoal 12a.That is, less than the communicating pores of sieve plate 143 micro mist destructive distillation charcoal 12aa drops in secondary grading room 142b, and the meal destructive distillation charcoal 12ab larger than the communicating pores of sieve plate 143 residues in main grading room 142a.Therefore, be set as 0.42mm by the diameter of the communicating pores by sieve plate 143, particle diameter can be made to be that the charcoal that the adsorbing mercury amount of the size of below 0.42mm is many drops in secondary grading room 142b as micro mist destructive distillation charcoal 12aa.Preferably the diameter of the communicating pores of sieve plate 143 is set as 2.0mm, particle diameter can be made thus to be that the charcoal that the adsorbing mercury amount of the size of below 2.0mm is many drops in secondary grading room 142b as micro mist destructive distillation charcoal 12aa.It should be noted that, non-active gas 32 is and the nonreactive gas of micro mist destructive distillation charcoal 12aa, such as, can enumerates nitrogen etc.

Micro mist destructive distillation charcoal 12aa in secondary grading room 142b is transported to gas outlet pipe 119 via micro mist destructive distillation charcoal vent pipe 144, air shooter 146 together with non-active gas 32.Further, micro mist destructive distillation charcoal 12aa is discharged by outside system together with non-active gas 32, low mercury content carbonizing gas 21a.

On the other hand, the meal destructive distillation charcoal 12ab in main grading room 142a is discharged to system from the meal destructive distillation charcoal relief outlet of the bottom of main grading room 142a.

Therefore, according to the dry distillation of coal device of the present embodiment, by having destructive distillation device main body 111 and sorting equipment 141, thus the destructive distillation charcoal 12a obtained in destructive distillation device main body 111 is transplanted on sorting equipment 141, can remove at the sorting equipment 141 micro mist destructive distillation charcoal 12aa that classification water outlet silver adsorption is many from adsorbing mercury destructive distillation charcoal 12a.Thereby, it is possible to obtain the few meal destructive distillation charcoal 12ab of adsorbing mercury amount as the few destructive distillation charcoal of mercury content.

Embodiment 6

The dry distillation of coal device of the 6th embodiment of the present invention is described based on Fig. 7.

The present embodiment is the structure of the configuration of the sorting equipment that the dry distillation of coal device changing above-mentioned 5th embodiment has.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 5th embodiment.

As shown in Figure 7, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111, and possesses the sorting equipment 151 as classification mechanism be configured between inner core 112 and hopper 117.

The sieve plate 153 that above-mentioned sorting equipment 151 possesses tank classifier 152 and is located in tank classifier 152.Tank classifier 152 is divided into main grading room 152a and secondary grading room 152b by sieve plate 153.Sieve plate 153 is configured in the below of the destructive distillation charcoal admission port (open end of inner core 112) of tank classifier 152.Sieve plate 153 rolls from destructive distillation charcoal admission port side towards the meal destructive distillation charcoal relief outlet of being discharged by the meal destructive distillation charcoal 12ad described later in tank classifier 152 and tiltedly configures.Sieve plate 153 has multiple communicating pores.The diameter of described communicating pores is set as the size specified such as being set as 2.0mm.

Above-mentioned sorting equipment 151 also has and air shooter 154, gas conveyance drum blower fan 155 and the gas outlet pipe 157 that is communicated with the gas discharge outlet 156 of tank classifier 152.Air shooter 154 is communicated with the non-active gas admission port bottom the secondary grading room 152b of tank classifier 152, and is communicated with the gas feed port of gas conveyance drum blower fan 155.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described sorting equipment 151 etc.Micro mist destructive distillation charcoal output mechanism is formed by described gas conveyance drum blower fan 155, described air shooter 154, described sieve plate 153, gas discharge outlet 156, gas outlet pipe 157 etc.

The work of the dry distillation of coal device formed so is below described.It should be noted that, in the present embodiment, identical with the dry distillation of coal device of the 5th above-mentioned embodiment, in inner core 112, supply dry charcoal 11 by feed portion 115 every specified amount.

Heated air 1 is supplied to urceolus 113.Thus, to dry charcoal 11 indirect heating in inner core 112, generate destructive distillation charcoal 12, and generate carbonizing gas 21.Destructive distillation charcoal 12 moves to tank classifier 152 side successively in inner core 112.Carbonizing gas 21 moves to tank classifier 152 side rand and destructive distillation charcoal 12 contact edge successively in inner core 112.Cool off before arriving tank classifier 152 after the coal heating part outlet 112c of destructive distillation charcoal 12 by inner core 112, adsorb a part for the mercury in carbonizing gas 21 correspondingly, become adsorbing mercury destructive distillation charcoal 12a, adsorbing mercury destructive distillation charcoal 12a is sent on the sieve plate 153 of tank classifier 152.Carbonizing gas 21 becomes low mercury content carbonizing gas 21a in destructive distillation charcoal 12 due to the adsorbing mercury in this gas 21, and low mercury content carbonizing gas 21a circulates to gas outlet pipe 157 via gas discharge outlet 156.

At this, about the adsorbing mercury amount to destructive distillation charcoal, as illustrated by above-described embodiment 5, depend on the particle diameter of destructive distillation charcoal, the major part of the mercury in carbonizing gas is adsorbed in the micro mist destructive distillation charcoal 12ac that particle diameter is below 2.0mm.It should be noted that, the adsorbing mercury amount being greater than the meal destructive distillation charcoal 12ad of 2.0mm to particle diameter is fewer than the adsorbing mercury amount to micro mist destructive distillation charcoal 12ac.

Then, the non-active gas 33 of about 400 DEG C is sent in tank classifier 152 by air shooter 154 with the gas flow rate of the classification that can produce adsorbing mercury destructive distillation charcoal 12a by gas conveyance drum blower fan 155.Thus, in adsorbing mercury destructive distillation charcoal 12a, only micro mist destructive distillation charcoal 12ac floats.Such as, be adjusted to 7m/s by the gas flow rate of the non-active gas 33 carried by gas conveyance drum blower fan 155, particle diameter is that the charcoal that the adsorbing mercury amount of the size of below 2.0mm is many floats as micro mist destructive distillation charcoal 12ac thus.Then, micro mist destructive distillation charcoal 12ac is discharged from described gas discharge outlet 156 by gas outlet pipe 157 together with carbonizing gas 21a and non-active gas 33 to system.

On the other hand, the meal destructive distillation charcoal 12ad on sieve plate 153 is sent to hopper 117 and is discharged to outside system.

Therefore, according to the dry distillation of coal device of the present embodiment, by arranging sorting equipment 151 between inner core 112 and hopper 117, thus the destructive distillation charcoal 12a obtained in destructive distillation device main body 111 is delivered to sorting equipment 151, can remove at the sorting equipment 151 micro mist destructive distillation charcoal 12ac that classification water outlet silver adsorption is many from adsorbing mercury destructive distillation charcoal 12a.Thereby, it is possible to obtain the few meal destructive distillation charcoal 12ad of adsorbing mercury amount as the few destructive distillation charcoal of mercury content.

Embodiment 7

The dry distillation of coal device of the 7th embodiment of the present invention is described based on Fig. 8.

The present embodiment is the vapor pipe that possesses of the dry distillation of coal device replacing above-mentioned 1st embodiment and adds the structure that the circulation of destructive distillation charcoal promotes device.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 1st embodiment.

As shown in Figure 8, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111, and possesses destructive distillation charcoal circulation promotion device 181.It should be noted that, hopper 117 forms destructive distillation charcoal output mechanism.

The circulation of destructive distillation charcoal promotes that device 181 is devices that the destructive distillation charcoal 12 in inner core 112 is circulated rapidly to hopper 117 side, such as, be helical screw feeder etc.The leading section 181a of device 181 is positioned the coal heating part outlet 112c of inner core 112.Thus, not by the region that heated air 1 heats, destructive distillation charcoal can be utilized to circulate and to promote that device 181 shortens the residence time in this region, the cooling self of destructive distillation charcoal 12 can be suppressed thus, and the duration of contact of destructive distillation charcoal 12 and carbonizing gas 21 can be shortened.Consequently, the mercury in carbonizing gas 21 can be suppressed to the absorption of the destructive distillation charcoal 12 of discharging from separator tank 116 to hopper 117.

In such the present embodiment, circulated by described destructive distillation charcoal and promote that device 181 etc. forms low mercury content destructive distillation charcoal generating mechanism.

Therefore, according to the dry distillation of coal device of the present embodiment, by having destructive distillation device main body 111 and destructive distillation charcoal circulation promotion device 181, destructive distillation charcoal 12 can be made promptly to circulate from the coal heating part outlet 112c of inner core 112 to separator tank 116 and be discharged to hopper 117.Thereby, it is possible to suppress the mercury caused by the cooling of destructive distillation charcoal to the absorption of destructive distillation charcoal, therefore, it is possible to obtain the few destructive distillation charcoal 12 of mercury content.

Embodiment 8

The dry distillation of coal device of the 8th embodiment of the present invention is described based on Fig. 9 A and Fig. 9 B.

The present embodiment is the vapor pipe that has of the dry distillation of coal device replacing above-mentioned 1st embodiment and adds the structure of carbonizing gas contact inhibition plate body.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 1st embodiment.

As shown in Fig. 9 A and Fig. 9 B, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111, and possesses carbonizing gas contact inhibition plate body 191.

The sidewall portion of separator tank 116 is fixed in the base end part side of carbonizing gas contact inhibition plate body 191, and carbonizing gas contact inhibition plate body 191 extends along the bearing of trend of inner core 112.The 191a side, leading section of plate body 191 is in the shape tilting to extend towards oblique upper.The upper surface part 12c that plate body 191 is configured to the destructive distillation layer of charcoal be laminated with the destructive distillation charcoal 12 generated in inner core 112 contacts.Thus, although destructive distillation charcoal 12 is being cooled off before discharging to separator tank 116, hopper 117 by the coal heating part of being heated by heated air 1, utilizing plate body 191 can suppress the contact of destructive distillation charcoal 12 and carbonizing gas 21.Destructive distillation charcoal 12 is discharged to hopper 117 from separator tank 116.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described carbonizing gas contact inhibition plate body 191 etc.

Therefore, according to the dry distillation of coal device of the present embodiment, by possessing destructive distillation device main body 111 and carbonizing gas contact inhibition plate body 191, the destructive distillation charcoal 12 that this plate body 191 can be utilized to suppress to cool off and the contact of carbonizing gas 21, the absorption because contacting caused, in carbonizing gas 21 mercury with the destructive distillation charcoal 12 cooled off can be suppressed, therefore can obtain the destructive distillation charcoal 12 that mercury content is few.

Embodiment 9

The dry distillation of coal device of the 9th embodiment of the present invention is described based on Figure 10 A and Figure 10 B.

The present embodiment is the structure adding non-active gas feedway in the dry distillation of coal device of above-mentioned 8th embodiment.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 8th embodiment.

As shown in Figure 10 A and Figure 10 B, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111 and above-mentioned carbonizing gas contact inhibition plate body 191, and possesses non-active gas feedway 201.

Non-active gas feedway 201 is sent mouth with the gas of hopper 117 and is arranged communicatively.Non-active gas feedway 201 is the devices of the non-active gas 34 supplying about 400 DEG C in hopper 117.As non-active gas 34, be gas nonreactive with destructive distillation charcoal 12, such as, can enumerate nitrogen etc.By supplying non-active gas 34 in hopper 117, this non-active gas 34 leads to feed portion 115 effluent through plate body 191 and inner core 112 thus.Thereby, it is possible to suppress carbonizing gas 21 to enter between inner core 112 and plate body 191.Destructive distillation charcoal 12 is discharged to hopper 117 from separator tank 116.It should be noted that, non-active gas 34 is discharged to outside system via gas discharge outlet 118 and gas outlet pipe 119 together with carbonizing gas 21.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described carbonizing gas contact inhibition plate body 191 and described non-active gas feedway 201 etc.

Therefore, according to the dry distillation of coal device of the present embodiment, by having destructive distillation device main body 111, carbonizing gas contact inhibition plate body 191 and non-active gas feedway 201, and non-active gas 34 is supplied to hopper 117 and this non-active gas 34 is circulated between plate body 191 and inner core 112, the action effect same with the dry distillation of coal device of above-mentioned 8th embodiment can be played thus, and suppress carbonizing gas 21 to flow between plate body 191 and inner core 112, even and if carbonizing gas 21 is there is between plate body 191 and inner core 112, also non-active gas 34 can be utilized to be discharged to side, feed portion 115 by this carbonizing gas 21, therefore the few destructive distillation charcoal 12 of mercury content can be obtained more reliably.

Embodiment 10

The dry distillation of coal device of the 10th embodiment of the present invention is described based on Figure 11.

The present embodiment is the vapor pipe that has of the dry distillation of coal device replacing above-mentioned 1st embodiment and adds the structure of heating unit.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 1st embodiment.

As shown in figure 11, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111, and possesses heating unit 211.

Heating unit 211 to the destructive distillation charcoal 12 near coal heating part outlet 112c and the direct-fired device of inner core 112, can possess burner 212.The temperature of burner 212 is 1200 ~ 1300 DEG C, and destructive distillation charcoal 12 is heated to about 400 ~ 450 DEG C and insulation.Destructive distillation charcoal 12 is discharged to hopper 117 from separator tank 116.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described heating unit 211 etc.

Therefore, according to the dry distillation of coal device of the present embodiment, by possessing destructive distillation device main body 111 and heating unit 211, and the destructive distillation charcoal 12 near the burner 212 heating and separating groove 116 utilizing heating unit 211 to have and inner core 112, do not cool off during can making destructive distillation charcoal 12 thus before being discharged to separator tank 116, can suppress, because of the adsorbing mercury in the carbonizing gas caused by contacting with the destructive distillation charcoal cooled off, therefore can obtain the destructive distillation charcoal 12 that mercury content is few.

Embodiment 11

The dry distillation of coal device of the 11st embodiment of the present invention is described based on Figure 12 A and Figure 12 B.

The present embodiment is the structure that the heating unit possessed the dry distillation of coal device of above-mentioned 10th embodiment changes.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 10th embodiment.

As shown in Figure 12 A and Figure 12 B, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111, and possesses heating unit 221.

Heating unit 221 to the direct-fired device of destructive distillation charcoal 12 near the coal heating part outlet 112c of inner core 112, such as, can be made up of revolving indirect heat exchange pipe 222.Heat transfer tube 222 configures multiple in inner core 112, is set to rotate in its circumferential direction centered by the axle center of inner core 112.The leading section 222a of heat transfer tube 222 is configured in than the position of described coal heating part outlet 112c by separator tank 116 side.Such as combustion exhaust, gas retort heated air waste gas etc. is had to be adjusted to the heated air 8 of specified temperature in heat transfer tube 222 supply.Therefore, by supplying described heated air 8 in heat transfer tube 222, and this heat transfer tube 222 is rotated, destructive distillation charcoal 12 near separator tank 116 thus in inner core 112 contacts with by the heat transfer tube 222 of the warmed-up state of described heated air 8, and the destructive distillation charcoal 12 contacted with heat transfer tube 222 is themselves directly heated.Thus, destructive distillation charcoal 12 is retained as about 400 ~ 450 DEG C.Destructive distillation charcoal 12 is discharged to hopper 117 from separator tank 116.It should be noted that, warmed-up for heat transfer tube 222 heated air 9 is discharged to outside system.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described heating unit 221 etc.

Therefore, according to the dry distillation of coal device of the present embodiment, by having destructive distillation device main body 111 and heating unit 221, and the destructive distillation charcoal 12 near the heat transfer tube 222 heating and separating groove 116 utilizing heating unit 221 to have, same with the dry distillation of coal device of above-mentioned 10th embodiment thus, do not cool off during can making destructive distillation charcoal 12 before being discharged to separator tank 116, the absorption because contacting the mercury in the carbonizing gas caused with the destructive distillation charcoal cooled off can be suppressed, the destructive distillation charcoal 12 that mercury content is few can be obtained.

Embodiment 12

The dry distillation of coal device of the 12nd embodiment of the present invention is described based on Figure 13.

The present embodiment is the heating unit that possesses of the dry distillation of coal device replacing above-mentioned 11st embodiment and adds the structure of oxygenant feedway.In the present embodiment, same-sign is marked for the parts identical with the dry distillation of coal device of above-mentioned 11st embodiment.

As shown in figure 13, the dry distillation of coal device of the present embodiment possesses above-mentioned destructive distillation device main body 111, and possesses oxygenant feedway 231.

Oxygenant feedway 231 is the devices supplying oxygenant 42 relative to the coal heating part destructive distillation charcoal 12 exported near 112c of inner core 112.Oxygenant feedway 231 possesses the apparatus main body 232 and oxygenant supply-pipe 233 that form oxygenant supply source.Oxygenant supply-pipe 233 is communicated with the oxidant drain port of apparatus main body 232.Oxygenant supply-pipe 233 configures along the axle center of inner core 112 with extending.Near the leading section of oxygenant supply-pipe 233, be provided with multiple oxidize nozzle 234 along its length.Oxygenant is such as the oxygen-containing gas (oxygen concn: less than 5%) such as combustion exhaust, mixed gas (air, nitrogen).Oxygenant is such as about 400 ~ 450 DEG C, is adjusted to and does not make destructive distillation charcoal 12 cool and the temperature that can react with destructive distillation charcoal 12.Therefore, when oxygenant feedway 231 supplies oxygenant 42 via oxygenant supply-pipe 233 and oxidize nozzle 234 relative to the destructive distillation charcoal 12 near the coal heating part outlet 112c in inner core 112, the volatile component combustion heating such as a part for destructive distillation charcoal 12, the tar of generation, heat the destructive distillation charcoal 12 near coal heating part outlet 112c.Hopper 117 is discharged to from separator tank 116 by warmed-up destructive distillation charcoal 12b.

In such the present embodiment, form low mercury content destructive distillation charcoal generating mechanism by described oxygenant feedway 231 etc.

Therefore, according to the dry distillation of coal device of the present embodiment, by possessing destructive distillation device main body 111 and oxygenant feedway 231, and supply oxygenant 42 relative to the destructive distillation charcoal 12 near coal heating part outlet 112c, thus in this position combustion heating, can not cool off during warmed-up destructive distillation charcoal 12b is before being discharged to separator tank 116, the absorption of the mercury in the carbonizing gas caused by contacting with the destructive distillation charcoal cooled off can be suppressed, therefore, it is possible to obtain the few destructive distillation charcoal 12b of mercury content.

[other embodiments]

It should be noted that, the above-mentioned the 1st, in the 2nd embodiment, describe the dry distillation of coal device with vapor pipe 101, but also can be the dry distillation of coal device that the side face possessed near leading section is provided with the vapor pipe in multiple hole.

Utilizability in industry

Dry distillation of coal device of the present invention can manufacture the few destructive distillation charcoal of mercury content, therefore can extremely effectively utilize in various industry.

Description of reference numerals

1 heated air

6 preheating heated air

11 dry charcoals

12 destructive distillation charcoals

15 preheating and drying charcoals

16 destructive distillation charcoals

21 carbonizing gas

31 ~ 34 vector gas

42 oxygenants

101 vapor pipes

111 destructive distillation device main bodys

121 vector gas feedwaies

131 pre-heating and drying mechanisms

141,151 sorting equipments

181 destructive distillation charcoal circulations promote device

191 carbonizing gas contact inhibition plate bodys

201 non-active gas feedwaies

211,221 heating units

231 oxygenant feedwaies

Claims (1)

1. a dry distillation of coal device, it possesses destructive distillation device main body, this destructive distillation device main body has the inner core being supplied to dry charcoal and the urceolus covering described inner core, utilizes the heated air being supplied to described urceolus to generate destructive distillation charcoal and carbonizing gas to the described dry charcoal indirect heating in described inner core

The feature of described dry distillation of coal device is,

Described dry distillation of coal device also possesses low mercury content destructive distillation charcoal generating mechanism, and this low mercury content destructive distillation charcoal generating mechanism passes through the mercury of suppression contained by described carbonizing gas to the absorption of described destructive distillation charcoal, generates the poor described destructive distillation charcoal of described mercury,

Described low mercury content destructive distillation charcoal generating mechanism is such preheating and drying mechanism: the leading portion being located at described destructive distillation device main body, utilize preheating heated air that the described dry charcoal indirect heating before described inner core supply is generated preheating and drying charcoal and gas to 280 ~ 350 DEG C in inside, and only described preheating and drying charcoal is supplied to described inner core, on the other hand, the described gas generated in inside is discharged outward directly to system.