Raw coal pyrolytic carbon-based oxygen-enriched combustion device and method thereof

Abstract

The invention discloses a raw coal pyrolysis carbon-based oxygen-enriched combustion device and method, and relates to the technical field of raw coal pyrolysis, the raw coal pyrolysis carbon-based oxygen-enriched combustion device comprises a device body and further comprises a supporting device, a flame path gas inlet pipe is fixedly installed on the circumferential surface of the device body, and a burner assembly is slidably installed on the inner wall of the flame path gas inlet pipe; a supporting frame is fixedly installed on the circumferential face of the device body, and the supporting frame comprises a protective groove, a T-shaped rod, a protective spring, a connecting rod, a connecting frame, a connecting plate and a feeding frame. According to the invention, O2, CO2 and recycled gas are directly mixed, so that compared with the prior art in which recycled gas is mixed with air, the content of nitrogen in the mixed gas can be greatly reduced, the content of H2, CH4 and CO in the mixed gas can be increased, and the content of effective components and the calorific value in the mixed gas can be greatly increased.

Description

Technical Field

[0001] The invention relates to the technical field of raw coal pyrolysis, and in particular to a raw coal pyrolysis carbon-based oxygen-enriched combustion device and a method thereof. Background Art

[0002] The raw coal pyrolysis carbon-based oxygen-enriched combustion device usually consists of a device body, a feed frame, a flue gas channel and a waste heat recovery device.

[0003] The patent with the patent announcement number CN113566596B relates to a waste heat recovery device for tail gas of activated carbon carbonization furnace. The tail gas (combustible flue gas) generated during the operation of the carbonization furnace can enter the decoking pool through the first flue gas pipeline for dust reduction treatment. A part of the combustible flue gas after dust reduction treatment can be introduced into the ignition device through the second and third flue gas pipelines through the high temperature and high pressure blower. The combustible flue gas and air are mixed and ignited by the ignition device and then transported to the front combustion chamber for incineration. The flue gas after incineration forms high temperature heat energy and enters the heat storage chamber to further incinerate the incompletely burned flue gas. The high temperature heat energy in the heat storage chamber can be returned to the carbonization furnace to participate in carbonization, which can realize the recycling of a part of the flue gas, improve the heat utilization rate of the flue gas, and realize environmentally friendly production and low energy consumption of activated carbon production. Another part of the flue gas after dust reduction treatment can enter the rear combustion chamber for heat exchange treatment and then be discharged.

[0004] In the above patent, by recycling a part of the flue gas, the heat utilization rate of the flue gas is improved, and environmentally friendly production and low energy consumption of activated carbon production are achieved. The other part of the flue gas after dust reduction treatment can enter the post-incineration chamber for heat exchange treatment and then be discharged. However, it is difficult to support the connection between the burner assembly and the fire channel air inlet pipe. Long-term waste heat circulation and air flow impact will cause the connection to loosen or displace. Insufficient support at the connection between the burner assembly and the fire channel air inlet pipe will lead to structural instability, which will in turn affect the stability of the entire device body and the recovery efficiency of the return furnace gas. The existing coal pyrolysis production process mainly adopts an internal heating vertical square furnace. This process can effectively improve the comprehensive utilization of coal resources by quality, and can also increase the added value of low-metamorphic coal. It has been listed as one of the effective utilization directions and is currently the largest local coal conversion industry and pillar industry. However, this process uses air combustion, and the exhaust gas generated by combustion enters the coal gas, which not only reduces the calorific value of the coal gas, but also increases the processing capacity of the purification system. Moreover, a large amount of low calorific value coal gas produced lacks effective utilization methods, which has become a problem to be solved in the current low-temperature distillation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a raw coal pyrolysis carbon-based oxygen-enriched combustion device and method thereof, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a raw coal pyrolysis carbon-based oxygen-enriched combustion device, including a device body and a supporting device, wherein fire channel air inlet pipes are fixedly installed on both sides of the device body, a burner assembly is slidably installed on the inner wall of the fire channel air inlet pipe, and a plurality of burners are arranged inside the burner assembly, and a supporting frame is fixedly installed on the surface of the device body, wherein the supporting device includes a protective groove, a T-shaped rod, a protective spring, a connecting rod, a connecting frame, a connecting plate and a feed frame, the connecting plate moves upward to contact the burner assembly and assists in supporting the connection between the burner assembly and the fire channel air inlet pipe, the protective groove is provided at the bottom of the burner assembly, the T-shaped rod slides through the inner and outer walls of the supporting frame, the protective spring is arranged between the T-shaped rod and the supporting frame, the connecting rod slides through the inner and outer walls of the supporting frame, the connecting frame is fixedly installed on the top of the connecting rod, the connecting plate is fixedly installed on the inner wall of the connecting frame, and the feed frame is fixedly installed on the top of the device body.

[0007] According to the above technical solution, a connecting spring is provided between the connecting frame and the supporting frame, and the connecting spring can drive the connecting frame to reset. The connecting rod is in contact with the T-shaped rod, and the connecting plate is elastic and made of rubber.

[0008] According to the above technical solution, the top of the T-shaped rod passes through the inner and outer walls of the fire channel air inlet pipe, the connecting plate contacts the bottom of the burner assembly, and the top of the connecting frame is set as an inclined surface. The connecting rod is separated from the contact with the T-shaped rod so that the connecting frame moves upward and resets under the elastic force of the connecting spring.

[0009] According to the above technical scheme, a separation device for improving the purity of recycled coal gas is arranged inside the fire channel air intake pipe, and a detection device is arranged on the surface of the fire channel air intake pipe. The separation device includes a filter plate, a linkage rod, a rotating rod, a gear, an arc panel, a collecting hole, a collecting plate and a protective groove. The particulate matter accumulated on the surface of the filter plate is pushed by the arc panel and falls into the collecting hole under the action of its own gravity. The filter plate is fixedly mounted on the inner wall of the fire channel air intake pipe, the linkage rod slides through the inner and outer walls of the fire channel air intake pipe, the rotating rod rotates and penetrates the left and right walls of the filter plate, the gear is fixedly mounted on the circumferential surface of the rotating rod, the arc panel is fixedly mounted on the circumferential surface of the rotating rod, the collecting hole is opened at the bottom of the inner wall of the fire channel air intake pipe, the collecting plate is slidably mounted at the bottom of the fire channel air intake pipe, the protective groove is opened at the bottom of the collecting plate, and a tooth block is arranged on the front side of the linkage rod.

[0010] According to the above technical solution, a clockwork spring is arranged between the rotating rod and the filter plate, one end of the clockwork spring is arranged on the circumferential surface of the rotating rod, and the other end is arranged on the surface of the filter plate. The rotating rod can be driven to reset by the clockwork spring, the arc panel is in contact with the left side of the filter plate, and a linkage plate is fixedly installed on the rear side of the linkage rod. The clockwork spring is made of high-temperature alloy.

[0011] According to the above technical solution, the linkage rod contacts the T-shaped rod, the linkage rod contacts the inner wall of the protection groove, the collecting hole contacts the collecting plate, the collecting hole can be sealed by the collecting plate, and the tooth block meshes with the gear.

[0012] According to the above technical scheme, the detection device includes a detection tube, a detection plate, a detection rod, a placement frame, a telescopic rod, a baffle and a flexible tube. The button is blocked by the baffle so that the button of the device body cannot be pressed when the burner assembly is docked with the waste heat recovery equipment. The button cannot be pressed to ensure that the device body cannot operate when the burner assembly is docked with the waste heat recovery equipment. The detection tube is fixedly installed on the rear side of the fire channel air inlet pipe, the detection plate is slidably installed on the inner wall of the detection tube, the detection rod is fixedly installed on the bottom of the detection plate, the placement frame is fixedly installed on the front side of the fire channel air inlet pipe, the telescopic rod is fixedly installed on the inner wall of the placement frame, the baffle is fixedly installed on the free end of the telescopic rod, the flexible tube is arranged between the detection tube and the telescopic rod, a rubber ring is arranged between the fixed end of the telescopic rod and the free end of the telescopic rod, a button is fixedly installed on the bottom of the inner wall of the placement frame, and the button is electrically connected to the device body.

[0013] According to the above technical solution, a detection spring is arranged between the detection plate and the detection tube, and the detection plate can be driven to reset by the detection spring. Liquid is arranged inside the detection tube, and liquid is arranged inside the telescopic rod.

[0014] A method for using a raw coal pyrolysis carbon-based oxygen-enriched combustion device, using the above-mentioned raw coal pyrolysis carbon-based oxygen-enriched combustion device, comprising the following steps: Step 1: Incorporate the CO2 waste gas generated by the exhaust gas scrubber into the device air pipeline through the CO2 transport pipeline; Step 2: CO2 and O2 are evenly mixed to form a combustion-supporting gas, which then enters the burner. The combustion-supporting gas is mixed with the return gas in the burner and then enters the fire channel air inlet pipe, and finally enters the fire channel through the fire channel air inlet pipe; Step 3: The coal gas and oxygen react in the combustion layer to generate heat and coal gas to dry distill the coal in the upper dry distillation layer; Step 4: The coal is subjected to carbonization to produce raw coal gas and lignite. The raw coal gas produced is passed through a purification device to obtain coal tar and coal gas. Part of the purified coal gas flows back into the main body of the device as recycled coal gas.

[0015] The present invention provides a raw coal pyrolysis carbon-based oxygen-enriched combustion device, which has the following beneficial effects: (1) This invention, by directly mixing O2, CO2 and recycled coal gas, can significantly reduce the nitrogen content in the mixed gas and increase the H2, CH4 and CO contents in the mixed gas, compared with the prior art of mixing recycled coal gas with air. The content of effective components and calorific value in the mixed gas are greatly improved.

[0016] (2) In the present invention, the T-shaped rod is manually pulled downward, and the burner assembly is manually pushed to move and connect with the waste heat recovery device. The adjustability of the burner assembly can be appropriately adjusted according to the actual position to ensure the flow efficiency of the recycled coal gas. The connection frame is moved upward to reset and drive the connection plate to move upward. The connection plate moves upward to contact the burner assembly and provide auxiliary support for the connection between the burner assembly and the fire channel air inlet pipe. The auxiliary support of the connection plate can increase the pressure resistance of the connection between the burner assembly and the fire channel air inlet pipe, thereby avoiding leakage of CO2 and recycled coal gas due to unstable connection, thereby ensuring the recovery efficiency of the recycled coal gas and assisting in improving the carbonization efficiency of the device body. At the same time, the burner assembly is also easy to disassemble, so it is convenient to disassemble and replace a partially blocked burner.

[0017] (3) In the present invention, the particulate matter accumulated on the surface of the filter plate is pushed by the rotation of the arc panel. The particulate matter accumulated on the surface of the filter plate is pushed by the arc panel and falls into the collecting hole under the action of its own gravity. If the particulate matter accumulated on the surface of the filter plate is not removed in time, it will gradually affect the smoothness of the airflow in the device. The pushing action of the arc panel can effectively remove the particulate matter from the surface of the filter plate, thereby improving the carbonization efficiency of the device body. The linkage rod moves upward to contact the protective groove and restore the collection plate to limit the position. The limiting action of the linkage rod prevents the collection plate from being accidentally opened when the device body is operating, which can effectively avoid the safety hazards caused by the leakage of CO2 and recycled coal gas, thereby ensuring the airtightness of CO2 and recycled coal gas and the carbonization quality of the carbonization product.

[0018] (4) The invention blocks the top of the button by moving the baffle plate downward. The button is blocked by the baffle plate, so that the button of the device body cannot be pressed when the burner assembly is docked with the waste heat recovery equipment. The button cannot be pressed to ensure that the device body cannot operate when the burner assembly is docked with the waste heat recovery equipment. If the device body is started without the smoke pipe being docked accurately, the recovery efficiency of the return gas will be greatly reduced, resulting in energy waste. By detecting that the burner assembly is docked with the waste heat recovery equipment before starting the device body, it helps to improve the overall energy utilization efficiency and thus improve the operating stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the position structure of the device body and the support frame of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 4 This is a schematic diagram of the position structure of the connection frame and the connection plate of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure of part B in the middle is enlarged; Figure 6 It is a schematic diagram of the position structure of the fire channel air intake pipe and the T-shaped rod of the present invention; Figure 7 For the present invention Figure 6 The enlarged schematic diagram of the structure of part C in the middle; Figure 8 This is a schematic diagram of the internal structure of the fire channel air intake pipe of the present invention; Fig. 9 It is a schematic diagram of the carbonization process of the present invention.

[0020] In the figure: 1. device body; 2. fire channel air inlet pipe; 3. burner assembly; 4. support frame; 5. protection groove; 6. T-shaped rod; 7. protection spring; 8. connecting rod; 9. connecting frame; 10. connecting plate; 11. connecting spring; 12. feeding frame; 131. filter plate; 132. linkage rod; 133. rotating rod; 134. gear; 135. arc panel; 136. collecting hole; 137. collecting plate; 138. protection groove; 139. linkage plate; 141. detection tube; 142. detection plate; 143. detection rod; 144. detection spring; 145. placement frame; 146. telescopic rod; 147. shielding plate; 148. button; 149. flexible tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 9One embodiment of the present invention is: a raw coal pyrolysis carbon-based oxygen-enriched combustion device, including a device body 1, and also including a supporting device, wherein a fire channel air inlet pipe 2 is fixedly installed on the circumferential surface of the device body 1, a burner assembly 3 is slidably installed on the inner wall of the fire channel air inlet pipe 2, and a plurality of burners are arranged inside the burner assembly 3, and a supporting frame 4 is fixedly installed on the circumferential surface of the device body 1, wherein the supporting device includes a protective groove 5, a T-shaped rod 6, a protective spring 7, a connecting rod 8, a connecting frame 9, a connecting plate 10 and a feed frame 12, the protective groove 5 is opened at the bottom of the burner assembly 3, the T-shaped rod 6 slides through the inner and outer walls of the supporting frame 4, and the protective spring 7 is arranged on the T-shaped rod 6 Between the support frame 4, the connecting rod 8 slides through the inner and outer walls of the support frame 4, the connecting frame 9 is fixedly installed on the top of the connecting rod 8, the connecting plate 10 is fixedly installed on the inner wall of the connecting frame 9, and the feed frame 12 is fixedly installed on the top of the device body 1. The adjustability of the burner assembly 3 can be appropriately adjusted according to the actual position conditions to ensure the flow efficiency of the recycled coal gas. The auxiliary support of the connecting plate 10 can increase the pressure resistance of the connection between the burner assembly 3 and the fire channel air inlet pipe 2, thereby avoiding leakage of CO2 and recycled coal gas due to unstable connection, thereby ensuring the recovery efficiency of the recycled coal gas and assisting in improving the carbonization efficiency of the device body 1.

[0023] The CO2 produced in the tail gas scrubber enters the gas mixer through the CO2 transport pipeline and is mixed with oxygen before entering the device. Under oxygen-rich conditions, the air entering the furnace is gradually replaced by CO2 according to the test plan.

[0024] The specific plan is: three stages: dry distillation in air, dry distillation in air and pure oxygen, and dry distillation in CO2 and pure oxygen.

[0025]

[0026] It can be clearly seen from the above experimental results that the use of this process not only produces high-quality coal gas but also greatly reduces CO2 emissions, achieving the goal of "turning waste into treasure".

[0027] A connecting spring 11 is provided between the connecting frame 9 and the supporting frame 4 , and the connecting spring 11 can drive the connecting frame 9 to reset, the connecting rod 8 is in contact with the T-shaped rod 6 , and the connecting plate 10 is elastic and made of rubber.

[0028] The top of the T-shaped rod 6 passes through the inner and outer walls of the fire channel air inlet pipe 2, the connecting plate 10 contacts the bottom of the burner assembly 3, and the top of the connecting frame 9 is set as an inclined surface. The connecting rod 8 is separated from the contact with the T-shaped rod 6, so that the connecting frame 9 moves upward and resets under the elastic force of the connecting spring 11.

[0029] A method for using a raw coal pyrolysis carbon-based oxygen-enriched combustion device, using the above-mentioned raw coal pyrolysis carbon-based oxygen-enriched combustion device, comprising the following steps: Step 1: Incorporate the CO2 waste gas generated by the exhaust gas scrubber into the device air pipeline through the CO2 transport pipeline; Step 2: CO2 and O2 are uniformly mixed to form a combustion-supporting gas, which then enters the burner. The combustion-supporting gas is mixed with the return gas in the burner and then enters the fire channel air inlet pipe 2, and finally enters the fire channel through the fire channel air inlet pipe 2; Step 3: The coal gas and oxygen react in the combustion layer to generate heat and coal gas to dry distill the coal in the upper dry distillation layer; Step 4: The coal is subjected to carbonization to produce raw coal gas and lignite. The raw coal gas produced is passed through a purification device to obtain coal tar and coal gas. Part of the purified coal gas flows back into the device body 1 as recycled coal gas.

[0030] When this embodiment is working: the T-shaped rod 6 is manually pulled downward to move, and the T-shaped rod 6 moves downward to squeeze the protective spring 7. The protective spring 7 is deformed by the squeezing of the T-shaped rod 6, and at the same time, the T-shaped rod 6 moves downward to break away from the contact with the protective groove 5 and release the limit on the burner assembly 3. After the limit of the burner assembly 3 is released, the burner assembly 3 is manually pushed to move and dock with the waste heat recovery equipment. After the burner assembly 3 is moved and docked with the waste heat recovery equipment, the T-shaped rod 6 is released so that the T-shaped rod 6 moves upward and resets under the elastic force of the protective spring 7. The T-shaped rod 6 moves upward and resets to contact the inner wall of the protective groove 5 and restores the limit on the burner assembly 3. When the T-shaped rod 6 moves downward, the T-shaped rod 6 moves downward to contact and squeeze the connecting rod 8. The connecting rod 8 is squeezed downward by the T-shaped rod 6, and the connecting rod 8 The downward movement drives the connecting frame 9 to move downward, and the connecting frame 9 moves downward to squeeze the connecting spring 11. The connecting spring 11 is squeezed by the connecting frame 9 to produce deformation and accumulate force. At the same time, the connecting frame 9 moves downward to drive the connecting plate 10 to move downward. The connecting plate 10 moves downward to break away from the contact with the burner assembly 3 to facilitate the movement of the burner assembly 3 to dock with the waste heat recovery equipment. When the T-shaped rod 6 moves upward and resets under the elastic force of the protective spring 7, the T-shaped rod 6 moves upward and resets to break away from the contact with the connecting rod 8. The connecting rod 8 breaks away from the contact with the T-shaped rod 6, so that the connecting frame 9 moves upward and resets under the elastic force of the connecting spring 11. The connecting frame 9 moves upward and resets, driving the connecting plate 10 to move upward. The connecting plate 10 moves upward to contact the burner assembly 3 and provide auxiliary support for the connection between the burner assembly 3 and the fire channel air inlet pipe 2.

[0031] See also Figure 1-Figure 9On the basis of the above embodiment, in another embodiment of the present invention, a separation device for improving the purity of recycled coal gas is arranged inside the fire channel air inlet pipe 2, a detection device is arranged on the surface of the fire channel air inlet pipe 2, and the separation device includes a filter plate 131, a linkage rod 132, a rotating rod 133, a gear 134, an arc panel 135, a collecting hole 136, a collecting plate 137 and a protective groove 138, the filter plate 131 is fixedly mounted on the inner wall of the fire channel air inlet pipe 2, the linkage rod 132 slides through the inner and outer walls of the fire channel air inlet pipe 2, and the rotating rod 133 rotates The gear 134 is fixedly mounted on the circumferential surface of the rotating rod 133, and the arc panel 135 is fixedly mounted on the circumferential surface of the rotating rod 133. The collecting hole 136 is arranged at the bottom of the inner wall of the fire channel air inlet pipe 2, and the collecting plate 137 is slidably mounted at the bottom of the fire channel air inlet pipe 2. The protective groove 138 is arranged at the bottom of the collecting plate 137. A tooth block is arranged on the front side of the linkage rod 132. The particulate matter can be effectively removed from the surface of the filter plate 131 through the pushing action of the arc panel 135, thereby improving the carbonization efficiency of the device body 1.

[0032] A clockwork spring is arranged between the rotating rod 133 and the filter plate 131, one end of the clockwork spring is arranged on the circumferential surface of the rotating rod 133, and the other end is arranged on the surface of the filter plate 131. The clockwork spring can drive the rotating rod 133 to reset, the arc panel 135 is in contact with the left side of the filter plate 131, and a linkage plate 139 is fixedly installed on the rear side of the linkage rod 132. The clockwork spring is made of high-temperature alloy.

[0033] The linkage rod 132 contacts the T-shaped rod 6, the linkage rod 132 contacts the inner wall of the protection groove 138, the collection hole 136 contacts the collection plate 137, the collection hole 136 can be sealed by the collection plate 137, the tooth block is engaged with the gear 134, and the limiting effect of the linkage rod 132 prevents the collection plate 137 from being accidentally opened when the device body 1 is operating, which can effectively avoid the safety hazards caused by the leakage of CO2 and recycled coal gas, thereby ensuring the airtightness of CO2 and recycled coal gas and the carbonization quality of the carbonization product.

[0034] The detection device includes a detection tube 141, a detection plate 142, a detection rod 143, a placement frame 145, a telescopic rod 146, a baffle 147 and a flexible tube 149. The detection tube 141 is fixedly installed on the rear side of the fire channel air inlet pipe 2, the detection plate 142 is slidably installed on the inner wall of the detection tube 141, the detection rod 143 is fixedly installed on the bottom of the detection plate 142, the placement frame 145 is fixedly installed on the front side of the fire channel air inlet pipe 2, the telescopic rod 146 is fixedly installed on the inner wall of the placement frame 145, the baffle 147 is fixedly installed on the free end of the telescopic rod 146, the flexible tube 149 is arranged between the detection tube 141 and the telescopic rod 146, a rubber ring is arranged between the fixed end of the telescopic rod 146 and the free end of the telescopic rod 146, a button 148 is fixedly installed on the bottom of the inner wall of the placement frame 145, and the button 148 is electrically connected to the device body 1. The device body 1 can be started only after detecting that the burner assembly 3 is accurately docked with the waste heat recovery equipment, which helps to improve the overall energy utilization efficiency and thus improve the operation stability of the device body 1.

[0035] A detection spring 144 is provided between the detection plate 142 and the detection tube 141 , and the detection plate 142 can be driven to reset by the detection spring 144 . Liquid is provided inside the detection tube 141 , and liquid is provided inside the telescopic rod 146 .

[0036] When the present embodiment is working, the T-shaped rod 6 moves downward to contact the linkage rod 132 and squeeze the linkage rod 132. The linkage rod 132 is squeezed and moves downward by the T-shaped rod 6. The linkage rod 132 moves downward to drive the tooth block to move downward. The tooth block moves downward to squeeze the gear 134. The gear 134 is squeezed by the tooth block to rotate clockwise. The rotation of the gear 134 drives the rotating rod 133 to rotate. The rotating rod 133 rotates to squeeze the spring. The spring is squeezed by the rotating rod 133 to deform and accumulate force. At the same time, the rotating rod 133 rotates to drive the arc panel 135 to rotate. The arc panel 135 rotates to push the particles accumulated on the surface of the filter plate 131. The particles accumulated on the surface of the filter plate 131 are pushed by the arc panel 135 and fall into the collecting hole 136 under the action of their own gravity. At the same time, the linkage rod 132 moves downward to disengage. The collecting plate 137 is manually pushed to move after the collecting plate 137 contacts the protective groove 138 and releases the limit on the collecting plate 137. After the limit on the collecting plate 137 is released, the collecting plate 137 is manually pushed to move. The collecting plate 137 moves to release the seal of the collecting hole 136. After the seal of the collecting hole 136 is released, the particles accumulated inside the collecting hole 136 are cleaned. When the T-shaped rod 6 moves upward and resets under the elastic force of the protective spring 7, the T-shaped rod 6 moves upward and disengages from the contact with the linkage rod 132. The linkage rod 132 disengages from the contact with the T-shaped rod 6, so that the rotating rod 133 rotates counterclockwise under the elastic force of the clockwork spring. The rotating rod 133 rotates counterclockwise to drive the gear 134 to rotate. The gear 134 rotates to squeeze the tooth block to move upward. The tooth block moves upward to drive the linkage rod 132 to move upward. The linkage rod 132 moves upward and contacts the protective groove 138 and resumes the limit on the collecting plate 137.

[0037] The linkage rod 132 moves downward to drive the linkage plate 139 to move downward. The linkage plate 139 moves downward to contact the detection rod 143 and squeeze the detection rod 143. The detection rod 143 moves downward under the squeezing of the linkage plate 139. The detection rod 143 moves downward to drive the detection plate 142 to move downward. The detection plate 142 moves downward to squeeze the detection spring 144. The detection spring 144 is squeezed by the detection plate 142 to produce deformation and accumulate force. At the same time, the detection plate 142 moves downward to squeeze the liquid inside the detection cylinder 141. The liquid inside the detection cylinder 141 is squeezed by the detection plate 142 and passes through the flexible tube 149. The telescopic rod 146 enters, and the liquid entering the telescopic rod 146 squeezes the free end of the telescopic rod 146. The free end of the telescopic rod 146 moves downward due to the squeezing of the liquid entering the telescopic rod 146. The downward movement of the free end of the telescopic rod 146 drives the baffle plate 147 to move downward. The baffle plate 147 moves downward to block the top of the button 148. The button 148 is blocked by the baffle plate 147, so that the button 148 of the device main body 1 cannot be pressed when the burner assembly 3 is docked with the waste heat recovery equipment. The button 148 cannot be pressed to ensure that the device main body 1 cannot operate when the burner assembly 3 is docked with the waste heat recovery equipment.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw coal pyrolysis carbon-based oxygen-enriched combustion device, comprising a device body (1), characterized in that: Also included is a support device; Wherein, a fire channel air inlet pipe (2) is fixedly mounted on both sides of the device body (1), a burner assembly (3) is slidably mounted on the inner wall of the fire channel air inlet pipe (2), a plurality of burners are arranged inside the burner assembly (3), and a support frame (4) is fixedly mounted on the surface of the device body (1). The supporting device comprises a protection groove (5), a T-shaped rod (6), a protection spring (7), a connecting rod (8), a connecting frame (9), a connecting plate (10) and a feed frame (12), wherein the protection groove (5) is provided at the bottom of the burner assembly (3), the T-shaped rod (6) slides through the inner and outer walls of the supporting frame (4), the protection spring (7) is arranged between the T-shaped rod (6) and the supporting frame (4), the connecting rod (8) slides through the inner and outer walls of the supporting frame (4), the connecting frame (9) is fixedly mounted on the top of the connecting rod (8), the connecting plate (10) is fixedly mounted on the inner wall of the connecting frame (9), and the feed frame (12) is fixedly mounted on the top of the device body (1); A separation device for improving the purity of the recycled coal gas is arranged inside the fire channel air intake pipe (2), and a detection device is arranged on the surface of the fire channel air intake pipe (2).

2. The device for pyrolysis of raw coal and carbon-based oxygen-enriched combustion according to claim 1, characterized in that: A connecting spring (11) is provided between the connecting frame (9) and the supporting frame (4), the connecting rod (8) is in contact with the T-shaped rod (6), and the connecting plate (10) is elastic.

3. The device for pyrolysis of raw coal and carbon-based oxygen-enriched combustion according to claim 2, characterized in that: The top of the T-shaped rod (6) penetrates the inner and outer walls of the fire channel air inlet pipe (2), the connecting plate (10) contacts the bottom of the burner assembly (3), and the top of the connecting frame (9) is arranged as an inclined surface.

4. The device for pyrolysis of raw coal and carbon-based oxygen-enriched combustion according to claim 3, characterized in that: The separation device comprises a filter plate (131), a linkage rod (132), a rotating rod (133), a gear (134), a curved panel (135), a collection hole (136), a collection plate (137) and a protection groove (138); the filter plate (131) is fixedly mounted on the inner wall of the fire channel air intake pipe (2); the linkage rod (132) slides through the inner and outer walls of the fire channel air intake pipe (2); the rotating rod (133) rotates through the left and right walls of the filter plate (131); the gear (134) is fixedly mounted on the circumferential surface of the rotating rod (133); the curved panel (135) is fixedly mounted on the circumferential surface of the rotating rod (133); the collection hole (136) is provided at the bottom of the inner wall of the fire channel air intake pipe (2); the collection plate (137) is slidably mounted at the bottom of the fire channel air intake pipe (2); the protection groove (138) is provided at the bottom of the collection plate (137); and a tooth block is provided on the front side of the linkage rod (132).

5. The device for pyrolysis of raw coal and carbon-based oxygen-enriched combustion according to claim 4, characterized in that: A spring is provided between the rotating rod (133) and the filter plate (131); the arc panel (135) contacts the left side of the filter plate (131); and a linkage plate (139) is fixedly mounted on the rear side of the linkage rod (132).

6. The device for pyrolysis of raw coal and carbon-based oxygen-enriched combustion according to claim 5, characterized in that: The linkage rod (132) contacts the T-shaped rod (6), the linkage rod (132) contacts the inner wall of the protection groove (138), the collection hole (136) contacts the collection plate (137), and the tooth block meshes with the gear (134).

7. The device for pyrolysis of raw coal and carbon-based oxygen-enriched combustion according to claim 6, characterized in that: The detection device comprises a detection tube (141), a detection plate (142), a detection rod (143), a placement frame (145), a telescopic rod (146), a shielding plate (147) and a flexible tube (149); the detection tube (141) is fixedly mounted on the rear side of the fire channel air intake pipe (2); the detection plate (142) is slidably mounted on the inner wall of the detection tube (141); the detection rod (143) is fixedly mounted on the bottom of the detection plate (142); and the placement frame (145) is fixedly mounted on the fire channel air intake pipe (2). On the front side, the telescopic rod (146) is fixedly mounted on the inner wall of the placement frame (145), the shielding plate (147) is fixedly mounted on the free end of the telescopic rod (146), the flexible tube (149) is arranged between the detection tube (141) and the telescopic rod (146), a rubber ring is arranged between the fixed end of the telescopic rod (146) and the free end of the telescopic rod (146), and a button (148) is fixedly mounted on the bottom of the inner wall of the placement frame (145), and the button (148) is electrically connected to the device body (1).

8. The device for pyrolysis of raw coal and carbon-based oxygen-enriched combustion according to claim 7, characterized in that: A detection spring (144) is provided between the detection plate (142) and the detection cylinder (141); liquid is provided inside the detection cylinder (141); and liquid is provided inside the telescopic rod (146).

9. A method for using a raw coal pyrolysis carbon-based oxygen-enriched combustion device, using the raw coal pyrolysis carbon-based oxygen-enriched combustion device according to claim 8, characterized in that: The following steps are involved: Step 1: Incorporate the CO2 waste gas generated by the exhaust gas scrubber into the device air pipeline through the CO2 transport pipeline; Step 2: CO2 and O2 are uniformly mixed to form combustion-supporting gas, which then enters the burner. The combustion-supporting gas is mixed with the return gas in the burner and then enters the fire channel air inlet pipe (2), and finally enters the fire channel through the fire channel air inlet pipe (2); Step 3: The coal gas and oxygen react in the combustion layer to generate heat and coal gas to dry distill the coal in the upper dry distillation layer; Step 4: The coal is subjected to dry distillation to produce raw coal gas and lignite. The raw coal gas is passed through a purification device to obtain coal tar and coal gas. Part of the purified coal gas is returned to the device body (1) as recycled coal gas.

10. A combustion-supporting gas, applied to the raw coal pyrolysis carbon-based oxygen-enriched combustion device according to claim 1, characterized in that: The combustion-supporting gas is prepared by mixing CO2 and O2.

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