Low-rank coal pyrolysis exhaust gas recycling device

Abstract

The utility model relates to the technical field of low-rank coal pyrolysis exhaust gas, in particular to a low-rank coal pyrolysis exhaust gas recycling device which comprises a recycling shell and further comprises a gas inlet pipe fixed in the recycling shell, and one side of the bottom of the recycling shell is fixedly connected with a connecting shell. An air inlet pipe is connected with an air discharging pipe, then a first pump head is opened to pump cooling liquid in a water cooling box into an annular cooling pipe to cool the surface of the air inlet pipe, meanwhile, three sets of blowing fans are matched for auxiliary cooling so as to reduce the temperature, and subsequent equipment is prevented from being damaged; then activated carbon and a dehumidizer in the partition shell and the discharging shell are matched to remove moisture in the gas, an adsorbent is matched to remove tar and other organic pollutants in the gas, then two filter plates are matched to finely filter the gas and then discharge the gas, and therefore it is ensured that the impurity content in the gas is low, and the industrial utilization requirement is met; therefore, dependence on traditional fossil fuel is reduced, and cyclic utilization of resources is promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of low-rank coal pyrolysis exhaust gas, in particular to a low-rank coal pyrolysis exhaust gas recovery and utilization device. Background Art

[0002] Low-rank coal pyrolysis emissions refer to the gaseous pollutants produced during the pyrolysis process. Low-rank coal refers to a type of coal with a low ash content and a high volatile content. Its primary component is carbon, with some moisture and minerals. The pyrolysis process involves decomposing low-rank coal at high temperatures, producing a certain amount of combustible gases and some harmful gases.

[0003] However, if the exhaust gas from the pyrolysis of low-rank coal is directly discharged outdoors, it will affect the air environment. Therefore, a gas recovery device is needed to recycle and utilize the gas. The existing gas recovery device has a relatively single purification function when purifying the gas. The single purification function will cause the gas to contain some moisture, solid particles and harmful substances, which may damage the operation of subsequent equipment and cause the gas quality to fail to meet the utilization standards. Utility Model Content

[0004] The purpose of the present invention is to provide a device for recovering and utilizing exhaust gas from pyrolysis of low-rank coal, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a low-rank coal pyrolysis exhaust gas recovery and utilization device, comprising a recovery shell and further comprising:

[0006] An air intake pipe is fixed to the inside of the recovery shell, one side of the bottom of the recovery shell is fixedly connected to a connecting shell, the bottom of the connecting shell is fixedly connected to an extension shell, and one side of the inside of the extension shell is fixedly connected to an exhaust pipe;

[0007] A cooling part is fixed to the top of the recovery shell, and the cooling part includes a water cooling box. An exhaust fan is installed on one side of the interior of the extension shell. A mounting frame is fixedly connected to one side of the interior of the extension shell, and support plates are fixedly connected to both sides of the interior of the connection shell.

[0008] Preferably, the water cooling box is fixed to the top of the recovery shell, the left side of the water cooling box is connected to the first pump head through a pipe, and the right side of the water cooling box is connected to the second pump head through a pipe, and one end of the first pump head and the second pump head both penetrate into the interior of the recovery shell and are connected to an annular cooling pipe.

[0009] Preferably, a positioning shell is fixedly connected to the bottom of the recovery shell, and a blowing fan for cooling the air intake pipe is fixedly connected to the interior of the positioning shell.

[0010] Preferably, a discharge shell for preventing the use of activated carbon is provided on the top of the support plate, a partition shell for placing the dehumidifier is provided inside the discharge shell, and a mounting plate is fixedly connected to one side of the discharge shell, and the mounting plate is fixedly mounted to the side close to the connecting shell.

[0011] Preferably, the front and rear sides of the positioning shell are fixedly connected with reinforcement blocks, and the top of the reinforcement block is fixedly connected to the recovery shell.

[0012] Preferably, filter plates are provided on both sides of the interior of the mounting frame, the front side of the extension shell is fixedly connected to a limit plate, both sides of the limit plate are fixedly connected to springs, and the opposite sides of the two springs are fixedly connected to insertion rods.

[0013] Preferably, a sliding ring is fixedly connected to the top of the insertion rod, a limiting rod is provided inside the sliding ring, and the inside of the limiting rod is fixedly connected to the inside of the limiting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model is connected with the air discharge pipe through the air intake pipe, and then the coolant inside the water cooling box is pumped into the annular cooling pipe by opening the first pump head to cool the surface of the air intake pipe. At the same time, three sets of blowing fans are used to assist in cooling it to reduce the temperature and prevent subsequent equipment damage. Then, the activated carbon and dehumidifier inside the partition shell and the discharge shell are used to remove moisture from the gas, and the adsorbent is used to remove tar and other organic pollutants in the gas. Then, two filter plates are used to finely filter the gas and then discharge it, thereby ensuring that the impurity content in the gas is low and meeting the requirements of industrial utilization, thereby reducing dependence on traditional fossil fuels and promoting the recycling of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a low-rank coal pyrolysis exhaust gas recovery and utilization device of the utility model;

[0017] Figure 2 This is a schematic structural diagram of another perspective of the present utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the recovery shell of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the extended shell of the present invention.

[0020] In the figure: 1. Recovery shell; 2. Inlet pipe; 3. Connecting shell; 4. Extension shell; 5. Exhaust pipe; 6. Cooling part; 601. Water cooling box; 602. First pump head; 603. Second pump head; 604. Annular cooling pipe; 7. Exhaust fan; 8. Mounting frame; 9. Support plate; 10. Positioning shell; 11. Blowing fan; 12. Discharge shell; 13. Partition shell; 14. Mounting plate; 15. Reinforcement block; 16. Filter plate; 17. Limit plate; 18. Spring; 19. Insert rod; 20. Sliding ring; 21. Limit rod. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0022] See also Figure 1-4 As shown, a low-rank coal pyrolysis exhaust gas recovery and utilization device includes a recovery shell 1, and also includes: an air inlet pipe 2 fixed to the interior of the recovery shell 1, a flange is provided at one end of the air inlet pipe 2 to facilitate its connection to the gas pipeline, a connecting shell 3 is fixedly connected to one side of the bottom of the recovery shell 1, and the connecting shell 3 cooperates with an extension shell 4 to facilitate gas diversion, the bottom of the connecting shell 3 is fixedly connected to the extension shell 4, and one side of the interior of the extension shell 4 is fixedly connected to an exhaust pipe 5;

[0023] A cooling member 6 is fixed to the top of the recovery shell 1, and the cooling member 6 includes a water cooling box 601. An exhaust fan 7 is installed on one side of the interior of the extension shell 4, and the exhaust fan 7 is used to facilitate the diversion of the purified gas. A mounting frame 8 is fixedly connected to one side of the interior of the extension shell 4, and support plates 9 are fixedly connected to both sides of the interior of the connecting shell 3.

[0024] The water cooling box 601 is fixed on the top of the recovery shell 1. The left side of the water cooling box 601 is connected to the first pump head 602 through a pipe, and the right side of the water cooling box 601 is connected to the second pump head 603 through a pipe. The first pump head 602 is opened to pump the coolant inside the water cooling box 601 into the annular cooling pipe 604 to cool the surface of the intake pipe 2. The second pump head 603 is then used to pump the coolant inside the annular cooling pipe 604 into the water cooling box 601 for circulating refrigeration. One end of the first pump head 602 and the second pump head 603 both penetrate into the interior of the recovery shell 1 and are connected to the annular cooling pipe 604.

[0025] The bottom of the recovery shell 1 is fixedly connected to a positioning shell 10, which facilitates the fixing of the blowing fan 11 through the positioning shell 10. The interior of the positioning shell 10 is fixedly connected to the blowing fan 11 used to cool the air intake pipe 2. The front and rear sides of the positioning shell 10 are fixedly connected with reinforcement blocks 15. The fixed connection between the reinforcement blocks 15 and the recovery shell 1 can improve the connection strength between the positioning shell 10 and the recovery shell 1. The top of the reinforcement block 15 is fixedly connected to the recovery shell 1. A discharge shell 12 for preventing the use of activated carbon is provided on the top of the support plate 9. The activated carbon and other materials are conveniently placed through the discharge shell 12. A partition shell 13 for placing dehumidifiers is provided inside the discharge shell 12. The dehumidifier and other materials are conveniently stored through the partition shell 13. A mounting plate 14 is fixedly connected to one side of the discharge shell 12. The mounting plate 14 facilitates the fixed installation of the discharge shell 12. The mounting plate 14 is fixedly installed with one side of the connecting shell 3.

[0026] Filter plates 16 are provided on both sides of the mounting frame 8. By setting two filter plates 16, it is convenient to finely filter impurities in the gas. The front side of the extension shell 4 is fixedly connected to a limit plate 17. Both sides of the limit plate 17 are fixedly connected with a spring 18. The opposite sides of the two springs 18 are fixedly connected with an insertion rod 19. The top of the insertion rod 19 is fixedly connected with a sliding ring 20. When the user needs to remove the filter plate 16 for maintenance, the two insertion rods 19 can be pushed relative to each other. At this time, the insertion rod 19 will drive the sliding ring 20 to move on the surface of the limit rod 21, and at the same time squeeze the spring 18. Then the insertion rod 19 is separated from the inside of the filter plate 16, thereby facilitating the disassembly and maintenance of the filter plate 16. A limit rod 21 is provided inside the sliding ring 20, and the inside of the limit rod 21 is fixedly connected to the inside of the limit plate 17.

[0027] Working principle: First, connect the air intake pipe 2 with the air discharge pipe, open the first pump head 602 to pump the coolant inside the water cooling box 601 to the inside of the annular cooling pipe 604 to cool the surface of the air intake pipe 2, and then cooperate with the second pump head 603 to pump the coolant inside the annular cooling pipe 604 to the inside of the water cooling box 601 for circulation refrigeration. At the same time, cooperate with three groups of blowing fans 11 to assist in cooling it to reduce the temperature and prevent subsequent equipment damage. At this time, the gas will be discharged to the inside of the connecting shell 3, and the activated carbon and dehumidifier inside the partition shell 13 and the discharge shell 12 will remove moisture from the gas, and the adsorbent will remove tar and other organic pollutants in the gas. Then turn on the exhaust fan 7 to pump the gas inside the connecting shell 3 to the inside of the extension shell 4, and then cooperate with two filter plates 16 to finely filter it and then discharge it through the exhaust pipe 5, so as to ensure that the impurity content in the gas is low, meet the requirements of industrial utilization, thereby reducing dependence on traditional fossil fuels and promoting the recycling of resources.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A low-rank coal pyrolysis exhaust gas recovery and utilization device, comprising a recovery shell (1), characterized in that: Also includes: An air intake pipe (2) is fixed inside the recovery shell (1); one side of the bottom of the recovery shell (1) is fixedly connected to a connecting shell (3); the bottom of the connecting shell (3) is fixedly connected to an extension shell (4); and one side inside the extension shell (4) is fixedly connected to an exhaust pipe (5); A cooling member (6) is fixed to the top of the recovery shell (1), wherein the cooling member (6) includes a water cooling box (601), an exhaust fan (7) is installed on one side of the interior of the extension shell (4), a mounting frame (8) is fixedly connected to one side of the interior of the extension shell (4), and support plates (9) are fixedly connected to both sides of the interior of the connection shell (3).

2. The low-rank coal pyrolysis exhaust gas recovery and utilization device according to claim 1, characterized in that: The water cooling box (601) is fixed to the top of the recovery shell (1), the left side of the water cooling box (601) is connected to the first pump head (602) through a pipeline, and the right side of the water cooling box (601) is connected to the second pump head (603) through a pipeline, and one end of the first pump head (602) and the second pump head (603) both penetrate into the interior of the recovery shell (1) and are connected to an annular cooling pipe (604).

3. The low-rank coal pyrolysis exhaust gas recovery and utilization device according to claim 1, characterized in that: The bottom of the recovery shell (1) is fixedly connected to a positioning shell (10), and the interior of the positioning shell (10) is fixedly connected to a blowing fan (11) used for cooling the air intake pipe (2).

4. The low-rank coal pyrolysis exhaust gas recovery and utilization device according to claim 1, characterized in that: A discharge shell (12) for preventing the use of activated carbon is provided on the top of the support plate (9), a partition shell (13) for placing a dehumidifier is provided inside the discharge shell (12), and a mounting plate (14) is fixedly connected to one side of the discharge shell (12), and the mounting plate (14) is fixedly mounted on a side close to the connecting shell (3).

5. The low-rank coal pyrolysis exhaust gas recovery and utilization device according to claim 3, characterized in that: Reinforcement blocks (15) are fixedly connected to both the front and rear sides of the positioning shell (10), and the top of the reinforcement block (15) is fixedly connected to the recovery shell (1).

6. The low-rank coal pyrolysis exhaust gas recovery and utilization device according to claim 1, characterized in that: Filter plates (16) are provided on both sides of the interior of the mounting frame (8), the front side of the extension shell (4) is fixedly connected to a limit plate (17), both sides of the limit plate (17) are fixedly connected to springs (18), and opposite sides of the two springs (18) are fixedly connected to insertion rods (19).

7. The low-rank coal pyrolysis exhaust gas recovery and utilization device according to claim 6, characterized in that: The top of the insertion rod (19) is fixedly connected to a sliding ring (20), a limiting rod (21) is provided inside the sliding ring (20), and the inside of the limiting rod (21) is fixedly connected to the inside of the limiting plate (17).

Images