CN213446794U - Quick sludge drying device - Google Patents

Abstract

The utility model provides a mud quick drying device, including base, setting drive arrangement on the base, install drying cylinder on drive arrangement, set up the support on the base to and install feeder hopper and delivery pump on the support, the export of delivery pump and the import intercommunication of drying cylinder, be equipped with the heat source seat of admitting air on the support, drying cylinder is including the urceolus and the inner tube of coaxial setting, urceolus and inner tube between form the stoving chamber, the heat source seat of admitting air and the one end intercommunication in stoving chamber, be equipped with the gas vent on the urceolus at stoving chamber other end place, the export of delivery pump and the inner tube intercommunication of drying cylinder. The utility model provides a heat source steam gets into the stoving chamber, and the mud in the drying cylinder receives the high temperature effect in stoving chamber, carries out dehydration mummification and handles, overcomes among the prior art mud and high temperature steam in a studio, and the heat exchange time between the mud material in the drying chamber and the heat medium is shorter, the heated area is less, the problem that the dehydration rate is low.

Description

Quick sludge drying device

Technical Field

The utility model belongs to the technical field of the environmental protection technique and specifically relates to a mud rapid draing device is related to.

Background

Sludge is produced and exists in large quantities in production and life. How to treat the sludge is always a great problem for people. The sludge contains a large amount of pathogenic microorganisms, parasitic ova, harmful heavy metals and a large amount of refractory substances, and if the sludge is not properly or thoroughly treated, secondary pollution to the environment is easily caused. The most primitive treatment method is to return the sludge to farmland or fill land, the untreated sludge enters environment and causes serious pollution to water source, atmosphere and soil, and the extensive sludge treatment method is being abandoned. After decades of exploration and practice, people generally believe that the best method for disposing sludge is to firstly perform dehydration and drying treatment and then perform waste utilization. After being dried, the sludge can be used as boiler fuel. After the sludge is dried, the water content is reduced to below 30 percent and the reduction rate is more than 70 percent, the heat value is generally not less than 1300 kilocalories, and the sludge can be completely used as boiler fuel for blending combustion. The dry sludge can also be used as building materials. The dry sludge can be used as a partial substitute fuel for cement clinker production, and on the other hand, the burnt residue can replace siliceous and aluminous raw materials used for clinker production, so that sludge recycling is realized. After the sludge is dried, water is removed, meanwhile, rich organic matters and nutrient elements are left, and the sludge can be used as a fertilizer for landscaping and can also be used for improvement engineering of barren soil or mine soil, so that resource utilization of the sludge is realized. Therefore, how to carry out efficient, energy-saving and pollution-free dehydration and drying on the sludge is a precondition and a key step for carrying out innocent treatment. The sludge dewatering and drying mainly aims to remove most of water in the sludge to obtain the relatively dry sludge, so that the subsequent utilization is facilitated. At present, the sludge dewatering equipment has a plurality of types, such as a plate filter press, a belt type extrusion machine, a steam drying equipment and the like. The main working mode and principle of the steam drying device are that a high-temperature heat source is utilized to enable moisture in the sludge to be quickly evaporated into steam under the influence of high temperature so as to be separated from the sludge, and the sludge is quickly dried.

Most of the existing sludge dryers are not ideal in work due to the reason that the structural design of the dryers is unreasonable, the heating area of sludge is small, the sludge dewatering rate is low, continuous operation cannot be performed, and the production efficiency is low.

Patent No. 201520294805.1 discloses a sludge drying machine, including fuselage, drying chamber and reducing mechanism, the drying chamber left side is equipped with hot-blast import, and the right side is the exhaust outlet, and mud gets into from the drying chamber upper left side that is close to high temperature steam end, discharges from the right side. After the sludge enters the drying chamber, the sludge is dehydrated and dried under the direct action of high-temperature steam. Although the sludge dryer has a simple structure and can dewater and dry sludge, the sludge dryer has the following problems: (1) the sludge and the high-temperature steam are in a working chamber, the heat exchange time between the sludge material and the heating medium in the drying chamber is short, and the efficiency is low; (2) after one box of sludge is dried, the next sludge dewatering and drying operation can be carried out only by removing the sludge in the drying chamber. The equipment can not carry out continuous operation, has long auxiliary time, reduces the production efficiency, increases the production cost and is not suitable for large-scale sludge dewatering and drying operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mud rapid draing device to the heated area of mud is less among the solution prior art, and the dehydration rate is low, the problem that production efficiency is low.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to the utility model discloses an aspect provides a mud quick drying device, including base, setting drive arrangement on the base, install the drying cylinder on drive arrangement, set up the support on the base to and install feeder hopper and the delivery pump on the support, the export of feeder hopper and the import intercommunication of delivery pump, the export of delivery pump and the import intercommunication of drying cylinder, be equipped with the heat source seat of admitting air on the support, drying cylinder includes the urceolus and the inner tube of coaxial setting, urceolus and inner tube between form the stoving chamber, the heat source seat of admitting air and the one end intercommunication in stoving chamber, be equipped with the gas vent on the urceolus at stoving chamber other end place, the export of delivery pump and the inner tube intercommunication of drying cylinder.

Furthermore, the drying cavity is divided into a plurality of cavities by partition plates, a vent hole is formed in any one partition plate, a drain outlet is formed in the outer barrel between every two adjacent partition plates, and a sealing plug is arranged on the drain outlet.

Furthermore, a plurality of helical blades are uniformly distributed on the inner wall of the inner cylinder in the drying cylinder, the helical blades are made of wear-resistant steel plates, the width of each helical blade is 1/6-1/4 of the inner diameter of the inner cylinder in the drying cylinder, and a layer of anti-sticking coating is sprayed on each helical blade.

Furthermore, the quick sludge drying device further comprises a sludge conveying pipeline, one end of the sludge conveying pipeline is communicated with an outlet of the conveying pump, and the other end of the sludge conveying pipeline is communicated with the inner cylinder of the drying cylinder.

Furthermore, the material of defeated mud pipeline includes seamless steel pipe, the spraying has the wearing layer on defeated mud pipeline's the inner wall, the outer wall spraying or the inlaying of defeated mud pipeline has polymer high temperature resistant thermal insulation material.

Further, a gas transmission pipeline is sleeved outside the mud transmission pipeline, a cavity is formed between the mud transmission pipeline and the gas transmission pipeline, one end of the gas transmission pipeline is communicated with an output port of the heat source gas inlet seat, and the other end of the gas transmission pipeline is communicated with the drying cavity.

Furthermore, the driving device comprises a first roller arranged on the outer wall of the outer cylinder in the drying cylinder, a second roller arranged on the base and a motor arranged on the base and used for driving the second roller.

Furthermore, two second rollers are arranged on the base and symmetrically arranged on two sides of the drying cylinder.

Furthermore, the one end of a drying cylinder far away from the delivery pump is provided with an outlet, the outlet of the drying cylinder is provided with a discharging cover body, and the bottom of the discharging cover body is provided with a discharging hole.

Furthermore, a plurality of vibration exciters are arranged on the outer wall of the outer cylinder in the drying cylinder, and a heat insulating material is coated on the outer wall of the outer cylinder.

The embodiment of the utility model provides a have following advantage: the embodiment of the utility model provides a mud quick drying device, the on-line screen storage device comprises a base, a drive uni, the dryer, a support, feeder hopper and delivery pump, mud gets into the delivery pump from the feeder hopper, get into the dryer under the effect of delivery pump, heat source steam in the heat source air inlet seat gets into the stoving chamber, to whole stoving chamber heating, mud in the dryer receives the high temperature effect in stoving chamber, carry out dehydration mummification and handle, overcome among the prior art mud and high temperature steam in a studio, the heat exchange time between mud material in the dryer and the heat medium is shorter, the heating area is less, the dehydration rate is low, the problem that production efficiency is low. This application stoving chamber is separated for a plurality of cavities through the baffle, all is equipped with the air vent on any one baffle, and the radial angle of air vent on two adjacent baffles is 180 to let the steam route as long as possible, the heat exchange is more abundant.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sludge rapid drying device provided in embodiment 1 of the present invention;

fig. 2 is a schematic cross-sectional view of a drying cylinder in a sludge rapid drying device provided in embodiment 2 of the present invention;

description of reference numerals: 1-a base; 2-a drying cylinder; 201 an outer cylinder; 202-inner cylinder; 3-support; 4-a feed hopper; 5-a delivery pump; 6-heat source air inlet seat; 7-an exhaust port; 8-a waste gas removal structure; 9-a vent hole; 10-an excretory orifice; 11-helical blades; 12-a mud conveying pipeline; 13-a gas pipeline; 14-a first roller; 15-a second roller; 16-an electric machine; 17-a discharging cover body; 18-a discharge hole; 19-vibration exciter.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, the embodiment provides a sludge rapid drying device, including base 1, the drive arrangement of setting on base 1, install drying cylinder 2 on drive arrangement, set up support 3 on base 1, and install feeder hopper 4 and delivery pump 5 on support 3, the export of feeder hopper 4 and the import intercommunication of delivery pump 5, the export of delivery pump 5 and the import intercommunication of drying cylinder 2, be equipped with heat source air inlet seat 6 on the support 3, drying cylinder 2 includes urceolus 201 and the inner tube 202 of coaxial setting, urceolus 201 and inner tube 202 between form the stoving chamber, heat source air inlet seat 6 and the one end intercommunication in stoving chamber, be equipped with gas vent 7 on the urceolus 201 at the stoving chamber other end place, the export of delivery pump 5 and the inner tube 202 intercommunication of drying cylinder 2.

The principle of the sludge rapid drying device is as follows: sludge enters the delivery pump 5 from the feed hopper 4, enters the drying cylinder 2 under the action of the delivery pump 5, heat source steam in the heat source air inlet seat 6 enters the drying cavity to heat the whole drying cavity, and the sludge in the drying cylinder 2 is subjected to the high-temperature action of the drying cavity to be subjected to dehydration and drying treatment, so that the problems that in the prior art, the sludge and the high-temperature steam are in one working chamber, the heat exchange time between a sludge material and a heating medium in the drying chamber is short, and the efficiency is low are solved.

Preferably, the sludge rapid drying device further comprises a sludge conveying pipeline 12, wherein one end of the sludge conveying pipeline 12 is communicated with an outlet of the conveying pump 5, and the other end of the sludge conveying pipeline 12 is communicated with an inlet of the drying cylinder 2. The material of mud conveying pipeline 12 includes seamless steel pipe, the spraying has the wearing layer on the inner wall of mud conveying pipeline 12, the outer wall spraying or the inlaying of mud conveying pipeline 12 has polymer high temperature resistant insulation material.

Preferably, a gas pipeline 13 is further sleeved outside the mud pipeline 12, a cavity is formed between the mud pipeline 12 and the gas pipeline 13, one end of the gas pipeline 13 is communicated with an output port of the heat source gas inlet seat 6, and the other end of the gas pipeline 13 is communicated with the drying cavity. The gas transmission pipeline 13 and the heat source gas inlet seat 6 are sealed by a high-temperature-resistant high-polymer material combined sealing element so as to ensure that high-pressure steam does not leak outwards. The mud pipeline 12 and the gas pipeline 13 can be fixedly connected by a plugging plate assembly mode. Heat source steam enters the drying cavity from the position between the two plates in front of the blocking plate and on the left side of the drying cylinder 2, and is sealed by a high-temperature-resistant high-polymer material combined sealing element.

Preferably, the one end that the transfer pump 5 was kept away from to drying cylinder 2 is equipped with the export, the exit of drying cylinder 2 is equipped with ejection of compact cover body 17, and the bottom of ejection of compact cover body 17 is equipped with discharge gate 18, the top of ejection of compact cover body 17 is equipped with waste gas and gets rid of structure 8, waste gas gets rid of structure 8 and carries out waste gas including similar equipment such as power dust remover or fine motion dust remover and gets rid of, and the parameter selection of its power and amount of wind is suitable properly to it is suitable to discharge waste gas completely.

The discharging cover body 17 is arranged on the base 1, and the discharging cover body 17 is provided with an access door for maintenance. A sealing system is arranged between the drying cylinder 2 and the discharging cover body 17 to isolate the drying cylinder 2 from the outside.

Preferably, a plurality of vibration exciters 19 are arranged on the outer wall of an outer cylinder 201 in the drying cylinder 2, and a heat insulating material is coated on the outer wall of the outer cylinder 201 and is used for heat preservation, energy saving and personnel protection of the drying cylinder. Sludge has certain stickness, though has carried out special treatment in drying cylinder 2 inside, but sludge is in the actual dehydration mummification in-process, and the bonding is inevitable on section of thick bamboo wall and helical blade 11, influences the dehydration mummification efficiency of sludge, and for this reason, this equipment has arranged a plurality of vibration exciters 19 at drying cylinder 2 surface, works according to presetting the procedure, forces the mud that bonds to drop, guarantees the normal dehydration and the mummification of mud. The number, arrangement and amplitude, frequency and other important parameters of the exciters 19 are reasonably and properly selected. The exciter 19 may use a rechargeable power supply or a contact power supply. The exciter 19 and its surroundings should be clearly warned. When using a contact power supply, isolated areas and facilities are to be established.

Preferably, the transfer pump 5 includes any one of a slurry pump, a cylinder type transfer pump, and a screw conveyor. For sludge with higher water content (60-80%), the sludge pump station can use a slurry pump to inject the sludge into the drying cylinder 2 through the sludge conveying pipeline 12 for dehydration and drying; for sludge with water content less than 60%, an oil cylinder type delivery pump can be used for sludge delivery; the sludge with lower water content can also be conveyed to the drying cylinder 2 through the sludge conveying pipe 12 by using a screw conveyor.

In addition, various sensors are installed at some key positions, and the accurate control of the electrical system on the sludge rapid drying equipment is realized. In addition, the application can also be used for dewatering and drying coal slime and other muddy objects.

Example 2

On the basis of the technical scheme of the embodiment 1, the drying cavity is divided into a plurality of cavities by partition plates, vent holes 9 are formed in any one partition plate, and the radial angle of the vent holes 9 in two adjacent partition plates is 180 degrees, so that the steam route is as long as possible, and the heat exchange is more sufficient. The outer barrel 201 between the two adjacent partition plates is provided with a drain outlet 10, the drain outlet 10 is provided with a sealing plug, the sealing plug is opened before maintenance to discharge waste water and waste gas, and the sealing plug comprises a screw plug, but not limited to the above.

Example 3

On the basis of the technical solution of embodiment 1 or 2, a plurality of helical blades 11 are uniformly distributed on the inner wall of the inner cylinder 202 in the drying cylinder 2, and the material of the helical blades 11 includes, but is not limited to, a wear-resistant steel plate. The width of the spiral blade 11 is 1/6-1/4 of the inner diameter of the inner cylinder 202 in the drying cylinder 2, the spiral blade can be arranged intermittently, and the width is about 300mm considering the convenient manufacture. The helical blade 11 is sprayed with a layer of anti-sticking coating.

Example 4

As shown in fig. 2, the driving means in embodiments 1-3 includes a first roller 14 provided on the outer wall of the outer tub 201 of the drying tub 2, a second roller 15 provided on the base 1, and a motor 16 provided on the base 1 for driving the second roller 15. Two second rollers 15 are arranged on the base 1, and the two second rollers 15 are symmetrically arranged on two sides of the drying cylinder 2. During the dewatering and drying process, the sludge rolls up and down along with the rotation of the drying cylinder 2 and is conveyed towards the discharge port 18 under the action of the spiral blades 11. The second roller 15 can be an open transmission pair, and can also be sealed in a shield to prevent dust from falling on the second roller 15 and affecting the rotation of the drying cylinder 2. One first roller 14 is provided with two second rollers 15. The number of the first rollers 14 and the second rollers 15 is appropriately selected according to the shape and weight of the apparatus, but should not be less than two. The first roller 14 on the drying cylinder 2 has a certain roundness requirement, and a certain coaxiality requirement exists between the first roller 14 and the second roller 15. The second roller 15 wraps the outer edge of the first roller 14 in an assembling mode, and therefore the drying cylinder 2 can rotate stably during operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a mud quick drying device, includes the base, sets up drive arrangement on the base, installs drying cylinder on drive arrangement, sets up the support on the base to and install feeder hopper and delivery pump on the support, the export of feeder hopper and the import intercommunication of delivery pump, the export of delivery pump and the import intercommunication of drying cylinder, its characterized in that: the drying device is characterized in that a heat source air inlet seat is arranged on the support, the drying cylinder comprises an outer cylinder and an inner cylinder which are coaxially arranged, a drying cavity is formed between the outer cylinder and the inner cylinder, the heat source air inlet seat is communicated with one end of the drying cavity, an air outlet is formed in the outer cylinder where the other end of the drying cavity is located, and an outlet of the delivery pump is communicated with the inner cylinder of the drying cylinder.

2. The sludge rapid drying device according to claim 1, characterized in that: the drying cavity is divided into a plurality of cavities by partition plates, air vents are arranged on any one partition plate, a drain outlet is arranged on the outer barrel between every two adjacent partition plates, and a sealing plug is arranged on the drain outlet.

3. The sludge rapid drying device according to claim 1, characterized in that: a plurality of helical blades are uniformly distributed on the inner wall of the inner cylinder in the drying cylinder, the helical blades are made of wear-resistant steel plates, the width of each helical blade is 1/6-1/4 of the inner diameter of the inner cylinder in the drying cylinder, and a layer of anti-sticking coating is sprayed on each helical blade.

4. The sludge rapid drying device according to claim 1, characterized in that: the sludge rapid drying device further comprises a sludge conveying pipeline, one end of the sludge conveying pipeline is communicated with an outlet of the conveying pump, and the other end of the sludge conveying pipeline is communicated with an inner cylinder of the drying cylinder.

5. The sludge rapid drying device according to claim 4, characterized in that: the material of defeated mud pipeline includes seamless steel pipe, the spraying has the wearing layer on defeated mud pipeline's the inner wall, the outer wall spraying or the inlaying of defeated mud pipeline has polymer high temperature resistant thermal insulation material.

6. The sludge rapid drying device according to claim 4 or 5, characterized in that: the mud conveying pipeline is also sleeved with a gas conveying pipeline, a cavity is formed between the mud conveying pipeline and the gas conveying pipeline, one end of the gas conveying pipeline is communicated with the output port of the heat source gas inlet seat, and the other end of the gas conveying pipeline is communicated with the drying cavity.

7. The sludge rapid drying device according to claim 1, characterized in that: the driving device comprises a first roller arranged on the outer wall of the outer cylinder in the drying cylinder, a second roller arranged on the base and a motor arranged on the base and used for driving the second roller.

8. The sludge rapid drying device according to claim 7, characterized in that: the base is provided with two second rollers which are symmetrically arranged on two sides of the drying cylinder.

9. The sludge rapid drying device according to claim 1, characterized in that: the one end that the delivery pump was kept away from to the drying cylinder is equipped with the export, the exit of drying cylinder is equipped with the ejection of compact cover body, and the bottom of the ejection of compact cover body is equipped with the discharge gate.

10. The sludge rapid drying device according to claim 1, characterized in that: the outer wall of the outer cylinder in the drying cylinder is provided with a plurality of vibration exciters, and the outer wall of the outer cylinder is coated with a heat insulating material.

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