CN210438680U

CN210438680U - Load test coke oven for tail gas purification and recovery

Info

Publication number: CN210438680U
Application number: CN201921331135.0U
Authority: CN
Inventors: 邹志福; 金辉
Original assignee: ZHONGWEI NATIONAL ENGINEERING RESEARCH CENTER FORCOKING TECHNOLOGY Co OF Ltd LIABILITY; Sinosteel Nanjing New Material Research Institute Co Ltd
Current assignee: ZHONGWEI NATIONAL ENGINEERING RESEARCH CENTER FORCOKING TECHNOLOGY Co OF Ltd LIABILITY; Sinosteel Nanjing New Material Research Institute Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-01
Anticipated expiration: 2029-08-16

Abstract

The utility model relates to the technical field of ferrous metallurgy/detection equipment, in particular to a tail gas purification recovery load test coke oven, which is characterized in that a coal charging tank turnover mechanism is arranged on a base, the coal charging tank turnover mechanism is positioned at a symmetrical position of a vertical shaft relative to an oven body, and the other end of a lifting supporting beam is extended and connected with a dynamic tamping device; the dynamic tamping device comprises a tamping hammer, a rack, a gear and a tamping motor; the coal charging tank turnover mechanism comprises a turnover frame, a sleeve and a turnover motor, and the turnover motor is fixed on the outer wall of the turnover frame. Compared with the prior art, the utility model has the advantages that: 1) the dynamic loading mode can more accurately simulate the actual coking state of the industrial coke oven, realize the simulation of the relevant indexes of the coke at different positions of the carbonization chamber of the industrial coke oven under different load states, and is used for accurately evaluating the coke to guide the industrial production; 2) and the working efficiency is doubled by double-station design. 3) Automatic operation can be realized, and the labor intensity of workers is reduced.

Description

Load test coke oven for tail gas purification and recovery

Technical Field

The utility model relates to a ferrous metallurgy/check out test set technical field, concretely relates to duplex position, dynamic loading's tail gas purification retrieves load test coke oven carries out the coke oven test according to the coal blending scheme, guides industrial production according to the test result.

Background

The test coke oven is used for simulating the actual condition of the industrial production coke oven, the state of the test coke oven is the same as that of the industrial coke oven as far as possible, and the test result of the test coke oven is similar to or has certain correlation with the result of the industrial coke oven. The test is carried out on the test coke oven according to the coal blending scheme of the preparation production, and then the industrial production is guided according to the test result. The test coke oven provides scientific basis for proportioning optimization, parameter adjustment and process change of the industrial coke oven.

The data obtained by the traditional test coke oven in the experiment has certain limitation, and the cold state index and the hot state index of the experimental data have larger difference compared with the industrial coke oven. The test coke oven can only simulate the coking state of the upper part of the carbonization chamber of the industrial coke oven due to the structure of the test coke oven, and can not simulate the coking states of the middle part and the lower part of the carbonization chamber of the industrial coke oven. Various chemical products in the raw gas generated in the coking process cannot be recovered and metered, and the environment is polluted. Because the traditional test coke oven has certain defects in the process of simulating the industrial coke oven, certain deviation can be generated in the process of guiding industrial production.

The Chinese invention patent with the patent application number of 201510811201.4 discloses an environment-friendly load test coke oven and a using method thereof, the environment-friendly load test coke oven comprises a test coke oven, a coking byproduct condensation recovery device and a coke tank assembly moving device, the test coke oven consists of a heating oven body and a coke tank assembly, the coke tank assembly comprises a coke tank, a coke tank upper cover, a load weight, a fiber heat-insulating sleeve and a handle connecting protective sleeve, and the coke tank assembly can be driven by the coke tank assembly moving device to lift and rotate; the coking byproduct condensation and recovery device comprises a shell and tube condenser, a coal tar collecting bottle, a filter and an electric igniter. According to the test coke oven, the production coke ovens with different volumes are simulated by a dry distillation coking mode of adjusting the load of the coal blending sample, and coking byproducts generated in the dry distillation process can be completely recovered, so that the yield of coke, coal tar and coal gas of the coal blending can be obtained, the test coke sample consistent with the dry distillation coking effect of the production coke oven can be provided, and the complete and accurate evaluation on the different dry distillation coking effects of the coal blending can be performed.

The test coke oven disclosed by the document only has one station, is only limited to finish a single test coal blending destructive distillation coking test, has low working efficiency, and simultaneously has the load of static loading, or can not make the coal blending density up and down in the coal charging tank body consistent, so the test data of the test coke oven still has larger deviation in the aspect of guiding industrial production.

Disclosure of Invention

The utility model aims at providing a tail gas purification retrieves load test coke oven, overcome the not enough of prior art, adopt the dynamic loading mode, the loading force is big, can more accurately simulate the actual coking state of industrial coke oven, simulate the relevant index of the coke of different positions of the carbonization chamber of industrial coke oven respectively under different load states, can accurately obtain the cold and hot attitude data of coke for accurate evaluation coke guides industrial production; the double-station design can be adopted, so that the coal charging and loading work of the next coal blending experiment can be performed while a certain coal blending destructive distillation coking experiment is performed, and the working efficiency is doubled; the raw gas recovery and purification structure is optimized, and the tail gas collection is more detailed.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

a coke oven with load test for tail gas purification and recovery comprises a base, an oven body, a coal charging tank body, a vertical shaft, a lead screw, a loop, a fixed sleeve, a reduction gear, a driving gear, a lifting beam, a lifting motor, a rotating motor, a condenser, a filter element filter and a tail gas torch, wherein the fixed sleeve and the oven body are arranged on the base, the coal charging tank body is arranged at one end of the lifting beam, the fixed sleeve, the reduction gear, the loop and the lifting motor are sequentially arranged along the vertical shaft from bottom to top, one end of the lead screw is connected with the lifting motor, the other end of the lead screw is connected with the reduction gear, the other end of the lifting beam is connected with the loop, the lifting beam is provided with internal threads which are meshed with the lead screw, the inner wall of the fixed sleeve is connected with the vertical shaft through a bearing, the outer surface of, The filter element filter and the tail gas torch are sequentially connected, a coal charging tank turnover mechanism is arranged on the base and is positioned at a symmetrical position relative to the vertical shaft of the furnace body, the other end of the lifting supporting beam is extended and connected with a dynamic tamping device, and when the lifting supporting beam drives the coal charging tank body to rotate to the upper part of the furnace body, the dynamic tamping device is positioned right above the coal charging tank turnover mechanism; the dynamic tamping device comprises a tamping hammer, a rack, a gear and a tamping motor, wherein the tamping hammer is arranged at the lower end of the rack, the rack is arranged in a chute on the lifting support beam, the tamping motor is arranged outside the chute, an outlet shaft of the tamping motor is connected with the gear, and the gear is meshed with the rack; the coal charging tank turnover mechanism comprises a turnover frame, a sleeve and a turnover motor, the turnover frame is fixedly connected with the base, two sides of the sleeve are hinged to the turnover frame through trunnions, one side of the trunnions is extended to be connected with an output shaft of the turnover motor, and the turnover motor is fixed on the outer wall of the turnover frame.

Further, the internal load that is equipped with of coal charging tank, the bottom of load depression bar is located to the load, is equipped with the bell on the load depression bar of load top, and the top of load depression bar is passed the lift corbel and is connected with the crossbeam, is equipped with a pair of tamping cylinder between the both ends of crossbeam and the lift corbel.

Furthermore, a silicon carbide hearth is arranged in the furnace body, and a plurality of U-shaped silicon carbide rods are uniformly arranged around the circumference of the silicon carbide hearth.

Furthermore, the condenser is a tubular heat exchanger, and a medium pipeline of the condenser is connected with a cold and hot water circulating machine.

Furthermore, a purification box is arranged between the filter element filter and the tail gas torch, and an activated carbon filter plate is arranged in the purification box.

Furthermore, a tail gas flowmeter is arranged on the tail gas torch air inlet pipeline.

Furthermore, a tar filter element is arranged in the filter element filter.

Compared with the prior art, the beneficial effects of the utility model are that: 1) the dynamic loading mode is adopted, the inertial tamping loading force is large, the actual coking state of the industrial coke oven can be simulated more accurately, the relevant indexes of cokes at different positions of the carbonization chamber of the industrial coke oven can be simulated under different loading states, and the cold and hot state data of the cokes can be obtained more accurately and used for accurately evaluating the cokes to guide industrial production; 2) the double-station design can be adopted, so that the discharging, coal charging and tamping loading work of the next coal blending experiment can be performed while a certain coal blending destructive distillation coking experiment is performed, and the working efficiency is doubled; 3) closed coking can fully guarantee that exhaust purification retrieves, and cold and hot water circulator is more convenient to the condensation and the washing of shell and tube condenser, and the tail gas measurement ware is more accurate to the collection of tail gas, conveniently does further data analysis, and tail gas discharges after reaching the environmental protection requirement after purifying. 4) The device can realize automatic coal charging, coking and discharging operations, reduce human participation and reduce the labor intensity of workers.

Drawings

FIG. 1 is a schematic structural diagram of a coking state of dry distillation according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the coal cake tamping state in the coal charging tank body of the embodiment of the present invention.

Fig. 3 is the embodiment of the utility model discloses after the coal cake tamping in the coal charging tank body is accomplished, tamping hammer lifting state schematic diagram.

Fig. 4 is a schematic view of the state of the lifting corbel of the present invention rotating 180 °.

FIG. 5 is a schematic view of the connection state between the coal charging tank and the furnace cover according to the embodiment of the present invention.

In the figure: 1-vertical shaft, 2-rotating motor, 3-driving gear, 4-turnover mechanism of coal charging tank, 5-lead screw, 6-tamping hammer, 7-tamping motor, 8-rack, 9-lifting motor, 10-tamping cylinder, 11-thermocouple, 12-furnace cover, 13-heat insulation layer, 14-load compression bar, 15-coal charging tank body, 16-load, 17-coal cake, 18-silicon carbide hearth, 19-U-shaped silicon carbon rod, 20-furnace body, 21-high temperature bellows, 22-condenser, 23-cold and hot water circulator, 24-tar tank, 25-filter element filter, 26-filter element, 27-purifying filter plate box, 28-activated carbon, 29-tail gas flowmeter, 30-pipe hoop, 31-tail gas torch, 32-tar, 33-lifting corbel, 34-base, 35-loop, 36-fixed sleeve, 37-reduction gear, 38-dynamic tamping device, 39-bearing, 40-gear, 41-chute, 42-roll-over stand, 43-sleeve, 44-roll-over motor, 45-trunnion and 46-crossbeam.

Detailed Description

The following embodiments are further described as follows:

in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, which are schematic structural views of an embodiment of a coke oven for tail gas purification and recovery load test of the utility model, the coke oven comprises a base 34, an oven body 20, a coal charging tank body 15, a vertical shaft 1, a lead screw 5, a loop 35, a fixed sleeve 36, a reduction gear 37, a driving gear 3, a lifting support beam 33, a lifting motor 9, a rotating motor 2, a condenser 22, a filter element filter 27 and a tail gas torch 31, wherein the fixed sleeve 36 and the oven body 20 are fixedly connected to the base 34, the coal charging tank body 15 is arranged at one end of the lifting support beam 33, the fixed sleeve 36, the reduction gear 37, the loop 35 and the lifting motor 9 are sequentially arranged along the vertical shaft 1 from bottom to top, one end of the lead screw 5 is connected to the lifting motor 9, the other end is connected to the reduction gear 37, the lifting support beam 33 is connected to the loop 35, the other end of the lifting support beam 33 is extended and connected to a dynamic tamping device 38, when the lifting support beam 33 drives the coal charging tank body 15 to rotate to the upper part of the furnace body 20, the dynamic tamping device 38 is positioned right above the coal charging tank turnover mechanism 4.

The lifting support beam 33 is provided with internal threads which are meshed with the screw rod 5, the inner wall of the fixed sleeve 36 is connected with the vertical shaft 1 through a bearing 39, the outer surface of the fixed sleeve 36 is connected with the base of the rotating motor 2, the output shaft of the rotating motor 2 is connected with the driving gear 3, the driving gear 3 is meshed with the reduction gear 37, the opening of the furnace cover 12 of the coal charging tank body 15 is sequentially connected with the condenser 22, the filter element filter 25, the purifying tank 27 and the tail gas torch 31 through the high-temperature corrugated pipe 21, and the purifying tank 27 is internally provided. The tail gas flow meter 29 is arranged on the gas inlet pipeline of the tail gas torch 31. The filter element 26 in the filter element filter 25 is a tar filter element.

The dynamic tamping device 38 comprises a tamping hammer 6, a rack 8, a gear 40 and a tamping motor 7, wherein the tamping hammer 6 is arranged at the lower end of the rack 8, the rack 8 is arranged in a chute 41 on the lifting support beam 33, the chute 41 is externally connected with a base of the tamping motor 7, an outlet shaft of the tamping motor 7 is connected with the gear 40, and the gear 40 is meshed with the rack 8; the coal charging tank turnover mechanism 4 comprises a turnover frame 42, a sleeve 43 and a turnover motor 44, the bottom of the turnover frame 42 is fixedly connected with the base 34, two sides of the sleeve 43 are hinged with the turnover frame 42 through trunnions 45, one side of the trunnions is extended to be connected with an output shaft of the turnover motor 44, and the turnover motor 44 is fixed on the outer wall of the turnover frame 42.

The coal charging tank body 15 is internally provided with a load 16, the load 16 is arranged at the bottom end of a load compression bar 14, a furnace cover 12 is arranged on the load compression bar above the load 16, the top end of the load compression bar 14 penetrates through a lifting support beam 33 to be connected with a cross beam 46, and a pair of tamping cylinders 10 is arranged between the two ends of the cross beam 46 and the lifting support beam 33.

A silicon carbide hearth 18 is arranged in the furnace body 20, and a plurality of U-shaped silicon carbide rods 19 are uniformly arranged around the circumference of the silicon carbide hearth 18. The silicon carbide hearth 18 refers to a hearth heat-insulating material which is a silicon carbide heat-insulating brick. The furnace type is also called a silicon carbide rod muffle furnace, and the rated temperature is 1000 ℃. The muffle furnace is a periodic operation type, and is generally used for element analysis and determination in laboratories, industrial and mining enterprises and scientific research units and for heating during heat treatment such as quenching, annealing, tempering and the like of general small-sized steel parts.

The condenser 22 is a tubular heat exchanger, and a medium pipeline of the condenser is connected with a cold and hot water circulator 23. The cold and hot water circulator is mainly used for testing various performance indexes of aerospace products, information electronic instruments and meters, materials, electricians, electronic products and various electronic elements in high and low temperature or damp and hot environments. The refrigerating system adopts a unit or binary low-temperature loop system design, adopts a multi-wing blower to forcibly blow air and circulate, has no dead angle, and can ensure that the temperature and the humidity in a test area are uniformly distributed. The air return design of the air path circulating air outlet has the advantages that the air pressure and the air speed both accord with the test standards, and the temperature and humidity return time is fast at the moment of opening the door. The heating, cooling and humidifying systems are completely independent, so that the efficiency can be improved, the testing cost is reduced, the service life is prolonged, and the failure rate is reduced.

The utility model discloses when the experimental coke oven embodiment of tail gas purification recovery load is adorned burnt, like figure 2, place coke oven jar body 15 in jar body tilting mechanism 4's sleeve 43 earlier, during coke oven jar body 15 was put into to the coke oven jar body, drive tamping hammer 6 from top to bottom through tamping motor 7 and tamp and form fine and close coal cake 17. After tamping, the furnace cover 12, the insulating layer 13, the load 16 and the thermocouple 11 are placed in the coal charging tank body 15 and are locked by screws. The lifting motor 9 drives the screw 5 to lift the lifting support beam 33, then the rotating motor 2 drives the driving gear 3 and the reduction gear 37 to rotate the lifting support beam 33 by 180 degrees, the coke oven tank 15 rotates to the position above the 20 furnace bodies, the lifting motor 9 drives the lifting support beam 33 to fall, and the coal charging tank 15 falls into the 20 furnace bodies. The high temperature corrugated tubing 21 is then connected to lock the ferrule 30. The tamping cylinder 10 is controlled to act, and the load pressing rod 14 and the load 16 press the coal cake 17. The U-shaped silicon carbide rod 19 is electrified to start heating the silicon carbide hearth 18 to carry out coking test on the coal charging tank body 15. The produced raw gas is sent to a condenser 22 for tar condensation through a high temperature corrugated pipe 21, a cold and hot water circulator 23 is adjusted to a cold water state, and the produced tar 32 flows into a tar tank 24. The tail gas enters the filter element filter 25 and is further purified by the filter element 26, and then the tail gas enters the purifying box 27 and is dried and filtered by the activated carbon filter plate 28. And finally, the tail gas is measured by a tail gas flowmeter 29 and then discharged for combustion.

The above-mentioned embodiments are only specific examples selected for the purpose of illustrating the objects, technical solutions and advantages of the present invention in detail, but should not limit the scope of the present invention, and all modifications, equivalent substitutions and improvements made without departing from the spirit and principles of the present invention should fall within the scope of the present invention.

Claims

1. A coke oven with load test for tail gas purification and recovery comprises a base, an oven body, a coal charging tank body, a vertical shaft, a lead screw, a loop, a fixed sleeve, a reduction gear, a driving gear, a lifting beam, a lifting motor, a rotating motor, a condenser, a filter element filter and a tail gas torch, wherein the fixed sleeve and the oven body are arranged on the base, the coal charging tank body is arranged at one end of the lifting beam, the fixed sleeve, the reduction gear, the loop and the lifting motor are sequentially arranged along the vertical shaft from bottom to top, one end of the lead screw is connected with the lifting motor, the other end of the lead screw is connected with the reduction gear, the other end of the lifting beam is connected with the loop, internal threads are arranged on the lifting beam and meshed with the lead screw, the inner wall of the fixed sleeve is connected with the vertical shaft through a bearing, the outer surface of the fixed sleeve, The filter element filter is sequentially connected with the tail gas torch, and the coal charging tank turnover mechanism is arranged on the base and is positioned at a symmetrical position of a vertical shaft relative to the furnace body, the other end of the lifting support beam is extended and connected with a dynamic tamping device, and when the lifting support beam drives the coal charging tank body to rotate to the upper part of the furnace body, the dynamic tamping device is positioned right above the coal charging tank turnover mechanism;

the dynamic tamping device comprises a tamping hammer, a rack, a gear and a tamping motor, wherein the tamping hammer is arranged at the lower end of the rack, the rack is arranged in a chute on the lifting support beam, the tamping motor is arranged outside the chute, an outlet shaft of the tamping motor is connected with the gear, and the gear is meshed with the rack;

the coal charging tank turnover mechanism comprises a turnover frame, a sleeve and a turnover motor, the turnover frame is fixedly connected with the base, two sides of the sleeve are hinged to the turnover frame through trunnions, one side of the trunnions is extended to be connected with an output shaft of the turnover motor, and the turnover motor is fixed on the outer wall of the turnover frame.

2. The tail gas purifying and recovering load test coke oven of claim 1, wherein the coal charging tank is provided with a load inside, the load is arranged at the bottom end of a load compression bar, a furnace cover is arranged on the load compression bar above the load, the top end of the load compression bar passes through the lifting support beam and is connected with a cross beam, and a pair of tamping cylinders are arranged between the two ends of the cross beam and the lifting support beam.

3. The load test coke oven for tail gas purification and recovery according to claim 1, wherein a silicon carbide hearth is arranged in the oven body, and a plurality of U-shaped silicon carbide rods are uniformly arranged around the circumference of the silicon carbide hearth.

4. The load test coke oven with tail gas purification and recovery as claimed in claim 1, wherein the condenser is a tubular heat exchanger, and a medium pipeline of the condenser is connected with a cold and hot water circulator.

5. The coke oven for the load test of tail gas purification and recovery of claim 1, wherein a purification box is arranged between the filter element filter and the tail gas torch, and an activated carbon filter plate is arranged in the purification box.

6. The tail gas purification recovery load test coke oven of claim 1, wherein the tail gas flare inlet line is provided with a tail gas flow meter.

7. The coke oven for load test of tail gas purification and recovery of claim 1, wherein a tar filter element is disposed in the filter element filter.