CN217516823U - Low-temperature drying equipment for sludge treatment - Google Patents

Low-temperature drying equipment for sludge treatment Download PDF

Info

Publication number
CN217516823U
CN217516823U CN202220882170.7U CN202220882170U CN217516823U CN 217516823 U CN217516823 U CN 217516823U CN 202220882170 U CN202220882170 U CN 202220882170U CN 217516823 U CN217516823 U CN 217516823U
Authority
CN
China
Prior art keywords
sludge
drying box
air
conveying
feeding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202220882170.7U
Other languages
Chinese (zh)
Inventor
刘小见
赵恩涛
于鲲
刘斌
宋燕清
孙仕杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiarong Technology Beijing Co ltd
Original Assignee
Jiarong Technology Beijing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiarong Technology Beijing Co ltd filed Critical Jiarong Technology Beijing Co ltd
Priority to CN202220882170.7U priority Critical patent/CN217516823U/en
Application granted granted Critical
Publication of CN217516823U publication Critical patent/CN217516823U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

The application relates to a low temperature mummification equipment for sludge treatment includes: the system comprises a feeding bin, a feeding pump, a pretreatment device, a conveying device, a sludge drying box, a dry air generator and a storage bin; the feeding bin, the feeding pump and the pretreatment device are sequentially communicated; the sludge drying box is provided with a sludge feeding hole and a sludge discharging hole, and the conveying device is arranged inside the sludge drying box; the sludge feeding port is arranged opposite to the discharge port of the pretreatment device so as to receive sludge at the discharge port of the pretreatment device, and the storage bin is arranged opposite to the sludge discharge port; an air inlet pipeline is arranged at the air inlet of the dry air generator, an air outlet pipeline is arranged at the air outlet of the dry air generator, and the air inlet pipeline and the air outlet pipeline are both communicated with the sludge drying box; the air inlet pipeline is provided with a suction fan for introducing air to the dry air generator, and the air outlet pipeline is provided with an exhaust fan for exhausting air to the sludge drying box. The sludge drying box dries the air in the sludge drying box, and the energy consumption is low.

Description

Low-temperature drying equipment for sludge treatment
Technical Field
The application relates to the field of environment-friendly equipment, in particular to low-temperature drying equipment for sludge treatment.
Background
At present, a method for treating sludge more thoroughly is a burning method, but because the moisture content of wet sludge is higher, the wet sludge with high moisture content is directly sent into a burning furnace to burn, a large amount of energy is consumed, the sludge is not burnt completely, and a large amount of toxic and harmful substances can be contained in smoke gas in serious conditions, so that secondary pollution is caused. Therefore, the wet sludge is generally subjected to water removal and drying before entering the incinerator.
Sludge drying is a process of removing most of water content from sludge through the action of percolation or evaporation, and generally refers to the adoption of self-evaporation facilities such as a sludge drying bed. However, the sludge drying equipment of today directly treats sludge, and the energy consumption is high.
Disclosure of Invention
In view of this, the present application provides a low-temperature drying apparatus for sludge treatment, which dries air in a sludge drying box, and then treats sludge with the dried air as an intermediate medium, thereby realizing indirect drying treatment of sludge, and having low energy consumption.
According to an aspect of the application, there is provided a low temperature drying apparatus for sludge treatment, comprising:
the system comprises a feeding bin, a feeding pump, a pretreatment device, a conveying device, a sludge drying box, a dry air generator and a storage bin;
the feeding bin, the feeding pump and the pretreatment device are sequentially communicated, so that the feeding pump conveys sludge to the pretreatment device;
the sludge drying box is provided with a sludge feeding hole and a sludge discharging hole, the conveying device is arranged inside the sludge drying box, and the conveying device is suitable for conveying the sludge from the sludge feeding hole to the sludge discharging hole;
the sludge feeding hole is opposite to the discharge hole of the pretreatment device so as to receive the sludge at the discharge hole of the pretreatment device, and the storage bin is opposite to the sludge discharge hole so as to receive the sludge on the conveying device;
an air inlet pipeline is arranged at an air inlet of the dry air generator, an air outlet pipeline is arranged at an air outlet of the dry air generator, and the air inlet pipeline and the air outlet pipeline are both communicated with the sludge drying box;
the air inlet pipeline is provided with a suction fan for air inlet of the dry air generator, and the air outlet pipeline is provided with an exhaust fan for air exhaust of the sludge drying box.
In one possible implementation, the pre-treatment device comprises a vibration device;
the top table surface of the vibration device is of a net structure, the table surface of the vibration device is obliquely arranged, and the top table surface of the vibration device is gradually obliquely and downwards arranged from one side far away from the conveying device to one side close to the conveying device.
In a possible implementation, the pretreatment device further comprises a roller press;
the compression roller machine is arranged between the discharge end of the vibrating device and the sludge feeding port of the sludge drying box and used for compressing the sludge and then transmitting the compressed sludge to the sludge feeding port.
In a possible implementation manner, the device further comprises a condensed water tank;
the dry air generator is provided with a condensation pipe, and the condensation water tank is communicated with the condensation pipe.
In a possible implementation manner, the sludge feeding port is located at the top position of the sludge drying box, and the sludge discharging port is located at the bottom position of the sludge drying box;
the conveying devices are arranged more than two, and the conveying devices are arranged from one side of the sludge feeding hole to one side of the sludge discharging hole in a layered mode;
the conveying directions of the conveying devices of the adjacent layers are opposite, the material receiving end of the conveying device close to one side of the sludge feeding hole is positioned right below the sludge feeding hole, and the material discharging end of the conveying device close to one side of the sludge discharging hole is positioned right above the sludge discharging hole;
the material receiving end of the conveying device positioned on the next layer extends out of the material discharging end of the conveying device positioned on the previous layer.
In one possible implementation, a plurality of the conveying devices are arranged in a horizontal direction.
In one possible implementation, the conveying device is a belt conveying structure.
In a possible implementation manner, a bearing layer formed by a plurality of protrusions is arranged on the belt body of the conveying device.
In a possible implementation manner, a filtering part is arranged on the air inlet pipeline and used for filtering air in the sludge drying box.
In one possible implementation, the dry air generator is an air dryer.
When the low-temperature drying equipment for sludge treatment carries out drying on sludge, firstly, sludge is pumped into the pretreatment device from the feeding bin through the feeding pump for pretreatment, and the pretreated sludge is discharged to the conveying device in the sludge drying box through the sludge feeding hole in the sludge drying box and is conveyed to the sludge discharging hole through the sludge feeding hole. When mud is followed conveyor and is transmitted, the wet air in the mud drying cabinet of opportunity extraction of induced drafting of admission line department carries out air drying to dry air generator, and the air after the drying is discharged the dry air to mud drying cabinet in through the exhaust fan on the pipeline of giving vent to anger and is dried mud, and the mud after the drying can be saved in discharging to the storage silo through the mud discharge gate. The low temperature drying equipment for sludge treatment of this application embodiment extracts the humid air in the sludge drying box through the suction fan and carries out the mummification in transporting to the dry air generator and handle, and the air after the mummification is arranged to the sludge drying box through the exhaust fan and is carried out the mummification to mud and handle, this application embodiment is for carrying out the mummification to the air in the sludge drying box, and then uses the air after the mummification as the intermediate medium to handle mud again, thereby realized handling the indirect mummification of mud, the energy consumption of its consumption is low.
Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.
Fig. 1 is a main structure diagram of a low-temperature drying apparatus for sludge treatment according to an embodiment of the present application;
fig. 2 shows a layout structure diagram of a sludge drying box and a conveying device of a low-temperature drying device for sludge treatment according to an embodiment of the application.
Detailed Description
Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
It will be understood that, the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings to facilitate the description of the present invention or to facilitate the description thereof, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.
Fig. 1 shows a main structure diagram of a low-temperature drying apparatus for sludge treatment according to an embodiment of the present application. Fig. 2 shows a layout structure diagram of a sludge drying box and a conveying device of a low-temperature drying device for sludge treatment according to an embodiment of the application. As shown in fig. 1 or fig. 2, the low-temperature drying apparatus for sludge treatment includes: the system comprises a feeding bin 100, a feeding pump 200, a pretreatment device 300, a sludge drying box 400, a dry air generator 500, a storage bin 600 and a conveying device 800, wherein the feeding bin 100, the feeding pump 200 and the pretreatment device 300 are sequentially communicated, so that the feeding pump 200 conveys sludge to the pretreatment device 300. The sludge drying box 400 is provided with a sludge feeding hole and a sludge discharging hole, the conveying device 800 is arranged inside the sludge drying box 400, and the conveying device 800 is used for conveying sludge from the sludge feeding hole to the sludge discharging hole. The sludge inlet is disposed opposite to the outlet of the pretreatment device 300 to receive the sludge at the outlet of the pretreatment device 300, and the storage bin 600 is disposed opposite to the sludge outlet to receive the sludge on the conveying device 800. An air inlet pipe is arranged at the air inlet of the dry air generator 500, an air outlet pipe is arranged at the air outlet of the dry air generator 500, and the air inlet pipe and the air outlet pipe are both communicated with the sludge drying box 400. The air inlet pipe is provided with a suction fan for supplying air to the dry air generator 500, and the air outlet pipe is provided with an exhaust fan for exhausting air to the sludge drying box 400.
When the low-temperature drying device for sludge treatment performs drying on sludge, firstly, sludge is pumped into the pretreatment device 300 from the feeding bin 100 through the feeding pump 200 for pretreatment, and the pretreated sludge is discharged to the conveying device 800 in the sludge drying box 400 through the sludge feeding hole in the sludge drying box 400 and is conveyed to the sludge discharging hole through the sludge feeding hole. When conveyor 800 is followed to mud transmits, the wet air in the mud drying cabinet 400 of the chance extraction of induced drafting of admission line department produces the machine 500 to carry out air drying to dry air, and the air after the drying is discharged the dry air to mud drying cabinet 400 in through the exhaust fan on the pipeline of giving vent to anger and is dried mud, and the mud after the drying can be saved in discharging to storage silo 600 through the mud discharge gate. The low temperature drying equipment for sludge treatment of this application embodiment extracts the humid air in the sludge drying box 400 through the suction fan and carries out the mummification in transporting to the dry air generator 500 and handle, the air after the mummification is arranged to sludge drying box 400 through the exhaust fan and is carried out the mummification to mud and handle, this application embodiment is for carrying out the mummification to the air in the sludge drying box 400, and then use the air after the mummification as the intermediate medium to handle mud again, thereby realized handling the indirect mummification of mud, its energy consumption that consumes is low.
In one possible implementation, the pre-treatment device 300 comprises a vibrating device, wherein the top table of the vibrating device is a net structure, the top table of the vibrating device is arranged to be cleaned, and the top table of the vibrating device is gradually inclined downwards from the side far away from the conveying device 800 to the side close to the conveying device 800. Therefore, large particles in the sludge can be vibrated down by the vibration device and sieved down by the grid-shaped table board. Here, it should be noted that the sludge in the feed bin 100 is the sludge primarily dewatered by the spiral sludge dewatering machine, and the water content thereof is about 80%.
Here, it should be noted that, in one possible implementation, the vibration device may include a support, a vibration motor, a top platform, and a material receiving bin, wherein the top platform is fixedly installed on the top of the support, the material receiving bin is disposed at a position below the top platform, the top platform is in a mesh structure, the top platform is gradually inclined downwards from a side far away from the conveying shape to a side close to the conveying device 800, and the vibration motor is fixed at a position at the bottom of the top platform for driving the top platform to vibrate.
Further, in a possible implementation manner, the pretreatment device 300 further includes a roller press, which is disposed between the discharge end of the vibration device and the sludge feeding port of the sludge drying box 400, and is used for conveying the sludge to the sludge feeding port after being pressed.
Here, it should be noted that in one possible implementation, the roller press includes a transmission mechanism, a roller and a mounting frame, wherein the transmission mechanism is a belt transmission, and the transmission direction of the transmission mechanism is directed from the discharge end of the vibrator device to the sludge feeding port side of the sludge drying box 400. The mounting bracket is provided with two, and two installed parts set up respectively in drive mechanism's the both sides of relative setting, and two installed parts set up relatively, and the relative both ends of roller rotate respectively and install on two mounting brackets. A preset distance is arranged between the side wall of the roller and a transmission belt of the transmission mechanism.
In a possible implementation manner, the dry air generator 500 further includes a condensed water tank 700, and the condensed water tank 700 is provided with a condensing pipe, and the condensing pipe is communicated with the condensed water tank 700.
In one possible implementation, the sludge feed port is located at a top position of the sludge drying box 400 and the sludge discharge port is located at a bottom position of the sludge drying box 400. The conveying devices 800 are arranged more than two, and the conveying devices 800 are arranged from one side of the sludge feeding hole to one side of the sludge discharging hole in a layered mode. The conveying direction of the conveying device 800 of the adjacent wind is opposite, the material receiving end of the conveying device 800 close to one side of the sludge feeding hole is positioned right below the sludge feeding hole, and the material discharging end of the conveying device 800 close to one side of the sludge discharging hole is positioned right above the sludge discharging hole. The receiving end of the conveyor 800 located downwind extends outside the discharge end of the conveyor 800 located above.
Further, in one possible implementation, a plurality of conveying devices 800 are arranged in a horizontal direction.
Here, it should be noted that both ends of the conveying direction of the conveying devices 800 separated by one layer are arranged flush, and here, the two conveying devices 800 separated by one layer are the first conveying element and the second conveying element, the first conveying element and the second conveying element are enclosed to form a rectangular area, and the material receiving end of the conveying device 800 located between the first conveying element and the second conveying element is arranged to extend out of the rectangular area enclosed by the first conveying element and the second conveying element. And the material receiving end of the conveying device 800 positioned between the first conveying member and the second conveying member is arranged at the same side as the material discharging end of the first conveying member.
Further, in one possible implementation, the conveyor 800 is a belt transport structure.
Further, in a possible implementation manner, the belt body of the conveying device 800 is provided with a bearing layer formed by a plurality of protrusions, so that the sludge and the conveying device 800 are provided with gaps, and the contact area with the dry air is increased.
In one possible implementation, a filter part is provided on the air inlet pipe for filtering the air in the sludge drying box 400.
In one possible implementation, the dry air production machine is an air dryer.
The low temperature mummification equipment of sludge treatment equipment of the embodiment of this application includes feeding storehouse 100, feeding pump 200, vibrating device, the compression roller machine, conveyor 800, sludge drying cabinet 400, dry air produces machine 500, condensation water pitcher 700 and storage silo 600, the export one side of feeding storehouse 100 communicates with the import of feeding pump 200, the exit of feeding pump 200 is provided with the transportation pipeline, the export setting of transportation pipeline is in the top position department of vibrating device's top mesa, and vibrating device's top mesa is by the one side that closes on the transportation pipeline to the one side of keeping away from the transportation pipeline slope setting gradually downwards. The compression roller machine is arranged beside the vibrating device, and the discharge end of the top table top of the vibrating device is arranged opposite to the feed end of the compression roller machine, so that the sludge slides down from the top table top of the vibrating device and then moves to the compression roller machine for compression. The sludge feeding hole of the sludge drying box 400 is positioned at a position right below the discharging hole of the roller press to receive the sludge pressed by the roller press. The conveying device 800 is arranged in the inner cavity of the sludge drying box 400, the material receiving end of the conveying device 800 is located right below the sludge feeding hole, and the material discharging end of the conveying device 800 is located right above the sludge discharging hole. An air inlet pipe is arranged at the air inlet of the dry air generator 500, an air outlet pipe is arranged at the air outlet of the dry air generator 500, and the air inlet pipe and the air outlet pipe are both communicated with the sludge drying box 400. The air inlet pipe is provided with a suction fan for supplying air to the dry air generator 500, and the air outlet pipe is provided with an exhaust fan for exhausting air to the sludge drying box 400. The storage bin 600 is disposed opposite to the sludge discharge port to receive the sludge on the conveying device 800. The dry air generator 500 is provided with a condensation pipe, and the condensation pipe is communicated with the condensation pipe. The conveyor 800 is a belt conveying structure. The low-temperature drying equipment for sludge treatment in the embodiment of the application extracts the wet air in the sludge drying box 400 through the suction fan and conveys the wet air to the dry air generator 500 for drying treatment, and the dried wet air is discharged to the sludge drying box 400 through the exhaust fan to dry the sludge.
The foregoing description of the embodiments of the present application has been presented for purposes of illustration and description and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A low temperature mummification equipment for sludge treatment, characterized by, includes:
the system comprises a feeding bin, a feeding pump, a pretreatment device, a conveying device, a sludge drying box, a dry air generator and a storage bin;
the feeding bin, the feeding pump and the pretreatment device are sequentially communicated, so that the feeding pump conveys sludge to the pretreatment device;
the sludge drying box is provided with a sludge feeding hole and a sludge discharging hole, the conveying device is arranged inside the sludge drying box, and the conveying device is suitable for conveying the sludge from the sludge feeding hole to the sludge discharging hole;
the sludge feeding hole is opposite to the discharge hole of the pretreatment device so as to receive the sludge at the discharge hole of the pretreatment device, and the storage bin is opposite to the sludge discharge hole so as to receive the sludge on the conveying device;
an air inlet pipeline is arranged at an air inlet of the dry air generator, an air outlet pipeline is arranged at an air outlet of the dry air generator, and the air inlet pipeline and the air outlet pipeline are both communicated with the sludge drying box;
the air inlet pipeline is provided with a suction fan for supplying air to the dry air generator, and the air outlet pipeline is provided with an exhaust fan for exhausting air to the sludge drying box.
2. The low temperature drying apparatus for sludge treatment according to claim 1, wherein the pre-treatment device comprises a vibration device;
the top table surface of the vibration device is of a net structure, the table surface of the vibration device is obliquely arranged, and the top table surface of the vibration device is gradually obliquely and downwards arranged from one side far away from the conveying device to one side close to the conveying device.
3. The low temperature drying apparatus for sludge treatment according to claim 2, wherein the pretreatment device further comprises a roller press;
the compression roller machine is arranged between the discharge end of the vibrating device and the sludge feeding port of the sludge drying box and used for compressing the sludge and then transmitting the compressed sludge to the sludge feeding port.
4. The low-temperature drying apparatus for sludge treatment according to claim 1, further comprising a condensed water tank;
the dry air generator is provided with a condensation pipe, and the condensation water tank is communicated with the condensation pipe.
5. The low-temperature drying equipment for sludge treatment according to claim 1, wherein the sludge feeding port is located at the top position of the sludge drying box, and the sludge discharging port is located at the bottom position of the sludge drying box;
the conveying devices are arranged more than two, and the conveying devices are arranged from one side of the sludge feeding hole to one side of the sludge discharging hole in a layered mode;
the conveying directions of the conveying devices of the adjacent layers are opposite, the material receiving end of the conveying device close to one side of the sludge feeding hole is positioned right below the sludge feeding hole, and the material discharging end of the conveying device close to one side of the sludge discharging hole is positioned right above the sludge discharging hole;
the material receiving end of the conveying device positioned on the next layer extends out of the material discharging end of the conveying device positioned on the previous layer.
6. The low-temperature drying equipment for sludge treatment according to claim 5, wherein a plurality of the conveying devices are arranged along a horizontal direction.
7. The low-temperature drying apparatus for sludge treatment according to any one of claims 1 to 6, wherein the conveying device is a belt conveying structure.
8. The low-temperature drying equipment for sludge treatment according to claim 7, wherein the belt body of the conveying device is provided with a bearing layer formed by a plurality of bulges.
9. The low-temperature drying apparatus for sludge treatment according to any one of claims 1 to 6, wherein a filtering portion is disposed on the air inlet pipeline for filtering air in the sludge drying box.
10. The low temperature drying apparatus for sludge treatment according to any one of claims 1 to 6, wherein the dry air generator is an air dryer.
CN202220882170.7U 2022-04-15 2022-04-15 Low-temperature drying equipment for sludge treatment Active CN217516823U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220882170.7U CN217516823U (en) 2022-04-15 2022-04-15 Low-temperature drying equipment for sludge treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220882170.7U CN217516823U (en) 2022-04-15 2022-04-15 Low-temperature drying equipment for sludge treatment

Publications (1)

Publication Number Publication Date
CN217516823U true CN217516823U (en) 2022-09-30

Family

ID=83371960

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220882170.7U Active CN217516823U (en) 2022-04-15 2022-04-15 Low-temperature drying equipment for sludge treatment

Country Status (1)

Country Link
CN (1) CN217516823U (en)

Similar Documents

Publication Publication Date Title
KR101365734B1 (en) The dehydration and aridity of the constructional sludge
CN207371607U (en) A kind of municipal construction river sand screening plant
CN105217919A (en) A kind of dehumidifying heat pump anhydration system device
KR101387011B1 (en) Rotary-type multi-pass dryer for waste material
CN108975653B (en) Sludge drying equipment
KR20160115143A (en) Sludge drying apparatus
CN217516823U (en) Low-temperature drying equipment for sludge treatment
CN208056151U (en) Inland river sullage processing unit
CN107200454B (en) Wet sludge drying method and device
JP4129772B2 (en) Water removal equipment for aggregates, etc.
KR20110027286A (en) Apparauts for drying and compressing sludge
KR20130009404A (en) Sludge drier and the method of drying sludge using it
JP2003004376A (en) Dryer and method for producing fertilizer using it
KR100438250B1 (en) Horizontal-movable hot air drier
CN213067000U (en) A semi-manufactured goods conveyor for active carbon production
JP2003065675A (en) Organic substance continuous drier
CN216236642U (en) Infrared microwave coupling sludge drying device
CN217323832U (en) Heated even hot air drying device for sludge treatment
CN209763657U (en) Dry conveyor of silica forced air
CN215947068U (en) Sludge reduction low-temperature drying device
CN212800091U (en) Sludge treatment equipment of environmental protection
CN219735928U (en) Grain drier waste heat recovery structure
JP2004183985A (en) Treatment device for livestock feces
CN112479539B (en) Storage bin and use method thereof
CN212819034U (en) Gas-liquid separation structure of freezing type dryer

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant