High-temperature combustion device for dusty low-calorific-value synthesis gas and use method of high-temperature combustion device

Abstract

The invention provides a high-temperature combustion device for dusty low-calorific-value synthesis gas. The high-temperature combustion device comprises a mounting mechanism, a main body mechanism, an ash collecting mechanism, a sealing mechanism, an ash storage mechanism and a moving mechanism, wherein the mounting mechanism communicates with the outside and the main body mechanism, the main body mechanism communicates with the ash collecting mechanism, and the ash collecting mechanism communicates with the ash storage mechanism through the sealing mechanism. The invention further provides a using method of the dusty low-heating-value synthesis gas high-temperature combustion device, and the using method comprises the steps that after the temperature in the main body mechanism reaches 800 DEG C or above, the mounting mechanism conveys low-heating-value synthesis gas into the main body mechanism; the low-heating-value synthesis gas is subjected to high-temperature combustion in the main body mechanism, and ash falls into the ash collecting mechanism; the ash storage mechanism extrudes and seals ash falling into the ash storage mechanism; rotating the sealing mechanism, opening the ash storage mechanism and cleaning ash; the moving mechanism is pulled, and the ash storage mechanism is disassembled. The dusty low-calorific-value synthesis gas high-temperature combustion device and the use method thereof have the characteristics of no pollution, convenience in use and the like, and can be widely applied to the field of synthesis gas treatment.

Description

Technical Field

[0001] The invention relates to a low calorific value synthesis gas high temperature combustion technology, and in particular to a high temperature combustion device for a ash-rich low calorific value synthesis gas and a use method thereof. Background Art

[0002] The amount of sludge as a byproduct of urban sewage treatment is increasing, and sludge treatment has become an urgent problem to be solved in the field of modern environmental protection. Sludge thermal treatment technology has great advantages in reducing pollution and recycling resources. While fixing heavy metals in the residue, it can also produce combustible gases rich in carbon monoxide and hydrogen. However, traditional sludge treatment technology will cause secondary pollution to the environment, forcing people to find more environmentally friendly sludge treatment methods.

[0003] The existing sludge contains very little organic matter and needs to be dried before it can be gasified. The calorific value after gasification is very low, less than 800Kcal / Nm 3 , so it is difficult to burn in ordinary furnaces. Biomass has a high organic content and the calorific value after gasification can reach 1300Kcal / Nm 3 However, it is difficult to achieve stable high-temperature combustion of these low calorific value synthesis gases; when cleaning the fly ash produced after combustion, the ash storage tank needs to be removed from the ash hopper. Since the ash storage tank is sealed, it is inconvenient to install and disassemble, and it is not convenient to clean the fly ash in the ash storage tank.

[0004] It can be seen that in the prior art, low calorific value synthesis gas is difficult to process or is not processed ideally, and the processing equipment is inconvenient to clean. Summary of the invention

[0005] In view of this, the main purpose of the present invention is to provide a high-temperature combustion device for low-calorific value synthesis gas with high ash content and easy to use, and a method for using the device.

[0006] In order to achieve the above object, the first technical solution proposed by the present invention is:

[0007] A high-temperature combustion device for high-ash low-calorific value synthesis gas, comprising: a mounting mechanism for conveying low-calorific value synthesis gas generated after drying sludge to a main mechanism; a main mechanism for burning the low-calorific value synthesis gas conveyed by the mounting mechanism, and sending the generated ash and flue gas to an ash collecting mechanism and an external flue gas waste heat utilization device respectively; three or more ash collecting mechanisms for collecting ash produced by the main mechanism, squeezing and cleaning the ash, and conveying it to an ash storage mechanism; three or more sealing mechanisms for opening or sealing the ash storage mechanisms; three or more ash storage mechanisms for storing ash collected from the ash collecting mechanisms and unloading them through a moving mechanism; a moving mechanism for conveying an ash storage tank; wherein the ash collecting mechanism, the ash storage mechanism, and the sealing mechanism correspond to each other;

[0008] One end of the installation mechanism is connected to the outside, and the other end is connected to the main mechanism; the bottom of the main mechanism is connected to the ash collecting mechanism, and the bottom of the ash collecting mechanism is connected to the corresponding ash storage mechanism through the corresponding sealing mechanism; three or more ash storage mechanisms are placed on the mobile mechanism.

[0009] In summary, in the high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, the low calorific value syngas generated by the installation mechanism after the sludge drying treatment is transported to the main mechanism under certain conditions, and is burned at high temperature in the main mechanism to generate ash and post-combustion gas: the post-combustion gas is sent to the external flue gas waste heat utilization device; the ash falls into the ash collecting mechanism by inertia, and then is compressed and stored by the ash storage mechanism, and the ash storage mechanism is sealed and preserved. When the ash storage tank is full of ash or the high-temperature combustion device for syngas with high ash and low calorific value stops running, the sealing mechanism can be opened, and the ash storage mechanism can be moved to the ground by the moving mechanism, and the ash storage mechanism can be disassembled from the moving mechanism to clean the ash in the ash storage mechanism. It can be seen that in the high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, since the various processes of the syngas with high ash and low calorific value in the installation mechanism, the main mechanism, the ash collecting mechanism, the ash storage mechanism, and the sealing mechanism are all closed, it will not cause any pollution to the outside world, and it is very convenient to operate and use, and it is worthy of promotion and application.

[0010] In order to achieve the above object, the second technical solution proposed by the present invention is:

[0011] A method for using a high-ash, low-calorific-value synthesis gas high-temperature combustion device comprises the following steps:

[0012] Step 1: Open the installation mechanism, and after the temperature in the main mechanism reaches above 800°C, deliver low calorific value synthesis gas into the main mechanism.

[0013] Step 2: In the main mechanism, the low calorific value synthesis gas begins to burn under the action of high temperature. The burning gas is fully mixed to form a vortex, which increases its residence time in the main mechanism, so that the low-temperature synthesis gas is completely burned to generate ash and post-combustion gas; the ash falls into the ash collecting mechanism, and the post-combustion gas is discharged to the external flue gas waste heat utilization device.

[0014] Step 3: Turn on the control switch of the ash storage mechanism to squeeze and seal the ash falling into the ash storage mechanism.

[0015] Step 4: When the high-temperature combustion device for syngas with high ash and low calorific value as claimed in any one of claims 1 to 7 stops operating or the ash storage mechanism is fully loaded, the sealing mechanism is rotated to open the ash storage mechanism and clean the fly ash inside the ash storage mechanism.

[0016] Step 5: Pull the moving mechanism, and the moving mechanism drives the ash storage mechanism to slide to the ground, and then remove the ash storage mechanism from the moving mechanism.

[0017] In summary, in the method for using a high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, the low calorific value syngas generated after the sludge drying treatment by the installation mechanism is transported to the main mechanism under certain conditions, and is burned at high temperature in the main mechanism to generate ash and gas after combustion: the gas after combustion is sent to the external flue gas waste heat utilization device; the ash falls into the ash collecting mechanism by inertia, and then is compressed and stored by the ash storage mechanism, and the ash storage mechanism is sealed and preserved. When the ash storage tank is full of ash or the high-temperature combustion device for syngas with high ash and low calorific value stops running, the sealing mechanism can be opened, and the ash storage mechanism can be moved to the ground by the moving mechanism, and the ash storage mechanism can be disassembled from the moving mechanism to clean the ash in the ash storage mechanism. It can be seen that in the method for using a high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, since the various processes of the syngas with high ash and low calorific value in the installation mechanism, the main mechanism, the ash collecting mechanism, the ash storage mechanism, and the sealing mechanism are all closed, it will not cause any pollution to the outside world, and it is very convenient to operate and use, and it is worthy of promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall composition structure of the high-temperature combustion device for high-ash and low-calorific value synthesis gas according to the present invention.

[0019] Figure 2 It is a schematic diagram of the overall composition structure of the main mechanism, ash collecting mechanism, ash storing mechanism and moving mechanism described in the present invention.

[0020] Figure 3 It is an enlarged view of the D part of the ash collecting mechanism and the ash storing mechanism described in the present invention.

[0021] Figure 4It is an enlarged view of part A of the sealing mechanism and the ash storage mechanism of the present invention.

[0022] Figure 5 It is an enlarged view of the C part of the sealing mechanism and the ash storage mechanism of the present invention.

[0023] Figure 6 It is an enlarged view of part B of the ash storage mechanism and the moving mechanism of the present invention.

[0024] Figure 7 It is an enlarged view of part E of the moving mechanism and ash storage mechanism of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic diagram of the overall structure of the high-temperature combustion device for ash-rich, low-calorific-value synthetic gas according to the present invention. Figure 1 As shown, the high-temperature combustion device of a multi-ash low-calorific value synthesis gas of the present invention comprises: an installation mechanism 1 for conveying the low-calorific value synthesis gas generated after drying the sludge to the main mechanism 2; a main mechanism 2 for burning the low-calorific value synthesis gas conveyed by the installation mechanism 1, and sending the generated ash and flue gas to the ash collecting mechanism 3 and the external flue gas waste heat utilization device respectively; three or more ash collecting mechanisms 3 for collecting the ash generated by the main mechanism 2, squeezing and cleaning the ash and conveying it to the ash storage mechanism; three or more sealing mechanisms 4 for opening or sealing the ash storage mechanism 5; three or more ash storage mechanisms 5 for storing the ash collected from the ash collecting mechanism 3 and unloading it through the moving mechanism 6; a moving mechanism 6 for conveying the ash storage tank 5; wherein the ash collecting mechanism 3, the ash storage mechanism 5, and the sealing mechanism 4 correspond to each other one by one;

[0027] One end of the installation mechanism 1 is connected to the outside, and the other end is connected to the main mechanism 2; the bottom of the main mechanism 2 is connected to the ash collecting mechanism 3, and the bottom of the ash collecting mechanism is connected to the corresponding ash storage mechanism 5 through the corresponding sealing mechanism 4; three or more ash storage mechanisms 5 are placed on the moving mechanism 6.

[0028] In summary, in the high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, the low calorific value syngas generated after the sludge drying treatment by the installation mechanism is transported to the main mechanism under certain conditions, and is burned at high temperature in the main mechanism to generate ash and post-combustion gas: the post-combustion gas is sent to the external flue gas waste heat utilization device; the ash falls into the ash collecting mechanism by inertia, and then is compressed and stored by the ash storage mechanism, and the ash storage mechanism is sealed and preserved. When the ash storage tank is full of ash or the high-temperature combustion device for syngas with high ash and low calorific value stops running, the sealing mechanism can be opened, and the ash storage mechanism can be moved to the ground by the moving mechanism, and the ash storage mechanism can be disassembled from the moving mechanism to clean the ash in the ash storage mechanism. It can be seen that in the high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, since the various processes of the syngas with high ash and low calorific value in the installation mechanism, the main mechanism, the ash collecting mechanism, the ash storage mechanism, and the sealing mechanism are all closed, it will not cause any pollution to the outside world, and it is very convenient to operate and use, and it is worthy of promotion and application.

[0029] Figure 2 The figure is a schematic diagram of the overall structure of the main body mechanism, ash collecting mechanism, ash storage mechanism and moving mechanism of the present invention. Figure 2 As shown, the main body mechanism 2 of the present invention comprises: a high temperature combustion chamber 201 for providing a place for combustion of the low calorific value synthesis gas transported by the installation mechanism 1; a refractory heat-insulating wall 204 for preventing heat loss in the high temperature combustion chamber 2; two or more high temperature heat storage walls 202 for storing heat when the internal temperature of the high temperature combustion chamber 201 is 800°C to 1000°C, releasing heat when the internal temperature of the high temperature combustion chamber 201 is 400°C to 600°C, and dividing the high temperature combustion chamber 201 into three or more high temperature combustion rooms; wherein each high temperature heat storage wall 202 is provided with three or more through holes, and the three or more through holes are all inclined holes;

[0030] A layer of fire-resistant insulation wall 204 is attached to the inner wall of the high-temperature combustion chamber 201; an opening is provided at the lower end of each high-temperature combustion chamber, and the opening is connected to the corresponding ash collecting mechanism 3; the high-temperature combustion chamber 201 is connected to the other end of the installation mechanism 1.

[0031] like Figure 1 As shown, the installation mechanism 1 of the present invention comprises: a high temperature fan 101 for blowing the low calorific value synthesis gas generated in the synthesis gas burner 104 into the main mechanism 2; a flame arrester 103 for preventing the flame generated by the synthesis gas burner 104 from spreading in the pipeline when drying the sludge; a synthesis gas burner 104 for drying the sludge and generating low calorific value synthesis gas; an ignition device 105 for providing a heat source for the main mechanism 2; wherein,

[0032] The flame arrester 103 is connected to the high-temperature fan 101 through a pipeline 102 ; the ignition device 105 of the heat source is fixedly installed on the high-temperature combustion chamber 201 .

[0033] The high temperature combustion chamber 201 is connected to the other end of the installation mechanism 1 , specifically: the high temperature combustion chamber 201 is connected to the outlet of the synthesis gas burner 104 .

[0034] In actual applications, when the fuel gas provided by the ignition device 105 is mixed and burned with the low calorific value synthesis gas in the high-temperature combustion room, the fuel gas or the low calorific value synthesis gas can pass through the inclined through holes set on the high-temperature heat storage wall, so that the low calorific value synthesis gas can be fully mixed and burned in the high-temperature combustion chamber 201, and a swirl is formed, which increases the residence time and allows the low calorific value synthesis gas to burn completely. Furthermore, the tar in the low calorific value synthesis gas begins to crack under high temperature conditions, and is rebounded when it hits the high-temperature heat storage wall, which also increases the residence time of the tar and is more conducive to the cracking and combustion of the tar. Furthermore, the fly ash produced by the combustion of the low calorific value synthesis gas collides with the high-temperature heat storage wall in the high-temperature combustion chamber 201 by inertia, and then the fly ash falls into the ash collecting hopper.

[0035] Figure 3 This is an enlarged view of the D part of the ash collecting mechanism and the ash storing mechanism of the present invention. Figure 1 , Figure 3 As shown, each of the ash collecting mechanisms 3 of the present invention comprises: an ash collecting hopper 301 for collecting ash falling from the corresponding high-temperature combustion room and sending the ash into the air lock 302; a ash collecting hopper 301 for preventing air leakage and ash return from the ash collecting hopper 301, and sending the ash from the ash collecting hopper 301 into the air lock 302 of the ash storage mechanism 5 through the connecting pipe 303; and two connecting pipes 303 for connecting the air lock 302 and the ash storage mechanism 5; wherein the connecting pipe 303 is slidably connected to the ash storage mechanism 5;

[0036] The upper end of the ash hopper 301 is fixedly connected to the opening at the lower end of the corresponding high-temperature combustion room, and the lower end of the ash hopper 301 is fixedly connected to the upper end of the air lock 302, and the lower end of the ash hopper 301 is connected to the upper end of the air lock 302; a connecting pipe 303 is respectively provided on both sides of the air lock 302, and the air lock 302 is connected to the ash storage mechanism 5 through the connecting pipe 303.

[0037] Each high-temperature combustion room is provided with an opening at the lower end, and the opening is connected to the corresponding ash collecting mechanism 3. Specifically, each high-temperature combustion room is provided with an opening at the lower end, and the opening is connected to the corresponding ash collecting hopper 301.

[0038] Figure 4 It is an enlarged view of part A of the sealing mechanism and the ash storage mechanism of the present invention. Figure 5 This is an enlarged view of the C part of the sealing mechanism and the ash storage mechanism of the present invention. Figure 1 , Figures 3 to 5 As shown, each of the ash storage mechanisms 5 includes: an ash storage tank 504 for storing ash from the air lock 302; a tank cover 502 for closing the opening of the ash storage tank 504; a gasket 503 for reducing the wear of the opening of the ash storage tank 504; an extrusion plate 505 for squeezing the ash in the ash storage tank 504; two hydraulic rods 501 for pushing and pulling the extrusion plate 505; wherein the extrusion plate 505 is installed inside the ash storage tank 504; the two hydraulic rods 501 pass through the tank cover 502 to connect the extrusion plate 505;

[0039] One end of the two hydraulic rods 501 is symmetrically fixed on the tank cover 502, and the other end of the two hydraulic rods 501 is symmetrically fixed on the extrusion plate 505; the gasket 503 is bonded to the tank cover 502 and contacts the opening of the ash storage tank 504; two slots 403 are symmetrically arranged near the opening of the ash storage tank 504; the extrusion plate 505 is also slidably connected to the connecting pipe 303. The tank cover 502 is fixedly connected to the sealing mechanism 4, and the ash storage tank 504 is also connected to the sealing mechanism 4.

[0040] In actual application, the control switch of the hydraulic rod 501 on the ash storage mechanism is turned on, so that the two hydraulic rods 501 drive the squeezing plate 505 to slide up and down in the ash storage tank 504 along the connecting pipe 303, and squeeze the ash in the ash storage tank 504 to increase the storage space of the ash storage tank 504. Here, the hydraulic control of the hydraulic rod 501 is a prior art and will not be described in detail here.

[0041] like Figure 4 , Figure 5 As shown, the sealing mechanism 4 of the present invention includes: 2 rotating rods 401 for cleaning the ash in the ash storage tank 504 when the ash storage tank 504 is opened; 2 fixing blocks 402 for rotatingly connecting the rotating rods 401; 2 springs 405 for pushing and pulling the rotating rods 401; wherein, one rotating rod 401, one fixing block 402, and one spring 405 form a set of cleaning structures, and another rotating rod 401, another fixing block 402, and another spring 405 form another set of cleaning structures; one set of cleaning structures corresponds to one card slot 403;

[0042] For each set of dust cleaning structure, one end of the rotating rod 401 is fixed on the tank cover 502, and the other end of the rotating rod 401 is a free end, and the free end side of the rotating rod 401 is arranged in an inclined surface; a cavity is arranged inside the fixed block 402, and a spring 405 is installed in the cavity; the free end of the rotating rod 401 passes through the spring 405 in the cavity of the corresponding fixed block 402, and abuts against the slot 403 or passes through the slot 403 and extends into the ash storage tank 504; a first rubber pad 404 is installed between the slot 403 and the rotating rod 401; a second rubber pad for sealing the tank cover 502 is also sleeved on the end of the rotating rod 401 connected to the tank cover 502; the first rubber pad 404 is fixed on the inner side of the slot 403.

[0043] Each fixing block 402 is symmetrically fixedly installed on both side ends of the tank cover 502, and each fixing block 402 is respectively located above the corresponding slot 403; and an empty slot 406 is also respectively opened on the lower end side of each fixing block 402.

[0044] The tank cover 502 is fixedly connected to the sealing mechanism 4 . Specifically, the tank cover 502 is fixedly connected to two fixing blocks 402 and one end of two rotating rods 401 .

[0045] The ash storage tank 504 is also connected to the sealing mechanism 4 , specifically: the other ends of the two rotating rods 401 respectively abut against or pass through the corresponding slots 403 on the ash storage tank 504 .

[0046] In actual application, the operator manually rotates the rotating rod 401. When the rotating rod contacts the rubber pad at the slot 403, the tank cover 502 and the ash storage tank 504 are in a sealed state. When the operator continues to rotate the rotating rod 401 from the slot 403 into the ash storage tank 504, the rotating rod 401 can clean the ash residue adhering to the inner wall of the ash storage tank 504. At this time, the spring 405 is stretched. When the operator rotates the rotating rod 401 out of the slot 403, the spring 405 is compressed. The elastic force of the spring 405 causes the free end of the rotating rod 401 to slide in the empty slot 406, and then the rotating rod 401 slides into the fixed block 402, so that the rotating rod 401 is separated from the inner wall of the ash storage tank 504.

[0047] Figure 6 It is an enlarged view of part B of the ash storage mechanism and the moving mechanism of the present invention. Figure 7 This is an enlarged view of the E part of the mobile mechanism and the ash storage mechanism of the present invention. Figure 6 , Figure 7 As shown, the mobile mechanism 6 of the present invention includes: a support seat 601 for supporting the main mechanism 2; three or more grooved bottom plates 602 for placing ash storage tanks 504; six or more blocks 603 for serving as movement tracks for guide wheels 607; guide wheels 607 for driving the bottom plate 602 to move forward and backward along the blocks 603; an inclined pad 604 for guiding the bottom plate 602 to slide from the support seat 601 to the ground; a handle 605 for pulling the bottom plate 602; a connecting shaft 606 for connecting the handle 605 and the bottom plate 602; wherein, one ash storage tank 504 is clamped and placed on one bottom plate 602, and one bottom plate 602 corresponds to two blocks 603 and eight guide wheels 607; the inclined surface of the pad 604 faces upward;

[0048] The support seat 601 is fixedly connected to the main body mechanism 2 through four supporting columns, and a pad 604 is fixedly connected to the front or rear side of the support seat 601, and the side of the pad 604 opposite to the inclined surface is installed on the ground; the support seat 601 is installed with a clamping block 603, and a base plate 602 is placed on every two clamping blocks 603; four guide wheels 607 are installed on one clamping block 603, and two guide wheels 607 form a group, and the two guide wheels 607 of each group are respectively placed on both sides of the corresponding clamping block 603, and the eight guide wheels 607 are fixed to the bottom end of the corresponding base plate 602; a rotatable connecting shaft 606 is respectively installed at the left end and the right end of the front end side or the rear end side of each base plate 602, and each connecting shaft 606 is also rotatably connected to the handle 605.

[0049] In actual application, after the rotating rod 401 rotates out of the slot 403 of the ash storage tank 504, the handle 605 is pulled to make the bottom plate 602 drive the ash storage tank 504 to slide, thereby separating the ash storage tank 504 from the tank cover 502. When the ash storage tank 504 is in an open state, the operator can remove the ash storage tank 504 from the bottom plate 602, and then clean the ash residue inside the ash storage tank 504.

[0050] The method for using the above-mentioned high-temperature combustion device for syngas with high ash and low calorific value comprises the following steps:

[0051] Step 1: Open the installation mechanism 1, and after the temperature in the main mechanism 2 reaches above 800°C, deliver low calorific value synthesis gas into the main mechanism 2.

[0052] Step 2: In the main body 2, the low calorific value synthesis gas begins to burn under the action of high temperature, and the burning gas is fully mixed to form a vortex, which increases its residence time in the main body 2, so that the low-temperature synthesis gas is completely burned to generate ash and post-combustion gas; the ash falls into the ash collecting mechanism 3, and the post-combustion gas is discharged to the external flue gas waste heat utilization device.

[0053] In actual application, when the temperature in the main body 2 reaches 800°C to 1000°C, the low calorific value synthesis gas burns under the action of the heat source provided by the ignition device 105. When the temperature in the main body 2 exceeds 1000°C, the ignition device 105 is turned off, and the low calorific value synthesis gas burns by its own internal heat. When the low calorific value synthesis gas burns in the main body 2, the tar in the low calorific value synthesis gas undergoes a cracking reaction under high temperature conditions, and the ash produced is in the form of fly ash. The fly ash collides with each other in the main body 2 by inertia and gradually falls into the ash collecting mechanism 3.

[0054] Step 3: Turn on the control switch of the ash storage mechanism 5 to squeeze and seal the ash residue falling into the ash storage mechanism 5.

[0055] Step 4: When the high-temperature combustion device for syngas with high ash and low calorific value stops running or the ash storage mechanism 5 is fully loaded, the sealing mechanism 4 is rotated to open the ash storage mechanism 5 and clean the fly ash inside the ash storage mechanism 5.

[0056] Step 5: Pull the moving mechanism 6 , and the moving mechanism 6 drives the ash storage mechanism 5 to slide to the ground, and then remove the ash storage mechanism 5 from the moving mechanism 6 .

[0057] In summary, in the method for using a high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, the low calorific value syngas generated by the installation mechanism after the sludge drying treatment is transported to the main mechanism under certain conditions, and is burned at high temperature in the main mechanism to generate ash and gas after combustion: the gas after combustion is sent to the external flue gas waste heat utilization device; the ash falls into the ash collecting mechanism by inertia, and then is compressed and stored by the ash storage mechanism, and the ash storage mechanism is sealed and preserved. When the ash storage tank is full of ash or the high-temperature combustion device for syngas with high ash and low calorific value stops running, the sealing mechanism can be opened, and the ash storage mechanism can be moved to the ground by the moving mechanism, and the ash storage mechanism can be disassembled from the moving mechanism to clean the ash in the ash storage mechanism. It can be seen that in the method for using a high-temperature combustion device for syngas with high ash and low calorific value described in the present invention, since the various processes of the syngas with high ash and low calorific value in the installation mechanism, the main mechanism, the ash collecting mechanism, the ash storage mechanism, and the sealing mechanism are all closed, it will not cause any pollution to the outside world, and it is very convenient to operate and use, and it is worthy of promotion and application.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-temperature combustion device for ash-rich, low-calorific-value synthesis gas, characterized in that: The device comprises: an installation mechanism for conveying the low calorific value synthesis gas generated after drying the sludge to the main mechanism; a main mechanism for burning the low calorific value synthesis gas conveyed by the installation mechanism and sending the generated ash and flue gas to the ash collecting mechanism and the external flue gas waste heat utilization device respectively; three or more ash collecting mechanisms for collecting the ash produced by the main mechanism, squeezing and cleaning the ash and conveying it to the ash storage mechanism; three or more sealing mechanisms for opening or sealing the ash storage mechanism; three or more ash storage mechanisms for storing the ash collected from the ash collecting mechanism and unloading it through the moving mechanism; a moving mechanism for conveying the ash storage tank; wherein the ash collecting mechanism, the ash storage mechanism and the sealing mechanism correspond to each other one by one; One end of the installation mechanism is connected to the outside, and the other end is connected to the main mechanism; the bottom of the main mechanism is connected to the ash collecting mechanism, and the bottom of the ash collecting mechanism is connected to the corresponding ash storage mechanism through the corresponding sealing mechanism; three or more ash storage mechanisms are placed on the mobile mechanism.

2. The high-temperature combustion device for ash-rich, low-calorific-value synthesis gas according to claim 1, characterized in that: The main body mechanism includes: a high-temperature combustion chamber for providing a place for combustion of the low calorific value synthesis gas transported by the installation mechanism; a refractory heat-insulating wall for preventing heat loss in the high-temperature combustion chamber; two or more high-temperature heat storage walls for storing heat when the temperature inside the high-temperature combustion chamber is 800°C to 1000°C, releasing heat when the temperature inside the high-temperature combustion chamber is 400°C to 600°C, and dividing the high-temperature combustion chamber into three or more high-temperature combustion rooms; wherein each high-temperature heat storage wall is provided with three or more through holes, and the three or more through holes are all inclined holes; A layer of fire-resistant insulation wall is attached to the inner wall of the high-temperature combustion chamber; an opening is arranged at the lower end of each high-temperature combustion chamber, and the opening is connected to the corresponding ash collecting mechanism; the high-temperature combustion chamber is connected to the other end of the installation mechanism.

3. The high-temperature combustion device for ash-rich and low-calorific-value syngas according to claim 2, characterized in that: The installation mechanism includes: a high-temperature fan for blowing the low calorific value synthesis gas generated in the synthesis gas burner into the main mechanism; a flame arrester for preventing the flame generated by the synthesis gas burner when drying the sludge from spreading in the pipeline; a synthesis gas burner for drying the sludge and generating low calorific value synthesis gas; an ignition device for providing a heat source for the main mechanism; wherein, The flame arrester is connected to the high-temperature fan through a pipeline; the ignition device of the heat source is fixedly installed on the high-temperature combustion chamber; The high temperature combustion chamber is connected to the other end of the installation mechanism, specifically: the high temperature combustion chamber is connected to the outlet of the synthesis gas burner.

4. A high-temperature combustion device for ash-rich, low-calorific-value synthesis gas according to claim 2 or 3, characterized in that: Each of the ash collecting mechanisms comprises: an ash collecting hopper for collecting ash falling from the corresponding high temperature combustion room and sending the ash into the air lock; an air lock for preventing air leakage and ash return from the ash collecting hopper and sending the ash from the ash collecting hopper into the ash storage mechanism through a connecting pipe; and two connecting pipes for connecting the air lock and the ash storage mechanism; wherein the connecting pipe is slidably connected to the ash storage mechanism; The upper end of the ash collecting hopper is fixedly connected to the opening at the lower end of the corresponding high-temperature combustion room, and the lower end of the ash collecting hopper is fixedly connected to the upper end of the air lock, and the lower end of the ash collecting hopper is connected to the upper end of the air lock; a connecting pipe is respectively arranged on both sides of the air lock, and the air lock is connected to the ash storage mechanism through the connecting pipe; Each high-temperature combustion room is provided with an opening at the lower end, and the opening is connected to the corresponding ash collecting mechanism. Specifically, each high-temperature combustion room is provided with an opening at the lower end, and the opening is connected to the corresponding ash collecting hopper.

5. The high-temperature combustion device for ash-rich and low-calorific-value syngas according to claim 4 is characterized in that: Each of the ash storage mechanisms comprises: an ash storage tank for storing ash from the air lock; a tank cover for closing the opening of the ash storage tank; a gasket for reducing wear of the opening of the ash storage tank; an extrusion plate for squeezing the ash in the ash storage tank; two hydraulic rods for pushing and pulling the extrusion plate; wherein the extrusion plate is installed inside the ash storage tank; and the two hydraulic rods pass through the tank cover to connect the extrusion plate; One end of the two hydraulic rods is symmetrically fixed on the tank cover, and the other end of the two hydraulic rods is symmetrically fixed on the extrusion plate; the gasket is bonded to the tank cover and contacts the opening of the ash storage tank; two card slots are symmetrically arranged near the opening of the ash storage tank; the extrusion plate is also slidably connected to the connecting pipe; The tank cover is fixedly connected to the sealing mechanism, and the ash storage tank is also connected to the sealing mechanism.

6. The high-temperature combustion device for ash-rich and low-calorific-value syngas according to claim 5, characterized in that: The sealing mechanism comprises: 2 rotating rods for cleaning the ash in the ash storage tank when the ash storage tank is opened; 2 fixing blocks for rotating the rotating rods; 2 springs for pushing and pulling the rotating rods; wherein, one rotating rod, one fixing block, and one spring form one set of ash cleaning structures, and another rotating rod, another fixing block, and another spring form another set of ash cleaning structures; one set of ash cleaning structures corresponds to one of the card slots; For each set of ash cleaning structure, one end of the rotating rod is fixed on the tank cover, and the other end of the rotating rod is a free end, and the free end of the rotating rod is arranged in an inclined surface; a cavity is arranged inside the fixing block, and a spring is installed in the cavity; the free end of the rotating rod passes through the spring in the corresponding fixing block cavity, abuts against the clamping groove or passes through the clamping groove and extends into the ash storage tank; a first rubber pad is installed between the clamping groove and the rotating rod; a second rubber pad for sealing the tank cover is also sleeved on the end of the rotating rod connected to the tank cover; the first rubber pad is fixed to the inner side of the clamping groove; Each fixing block is symmetrically fixedly installed on both sides of the tank cover, and each fixing block is respectively located above the corresponding slot; and an empty slot is also respectively opened on the lower end side of each fixing block; The tank cover is fixedly connected to the sealing mechanism, specifically: the tank cover is fixedly connected to two fixing blocks and one end of two rotating rods; The ash storage tank is also connected to the sealing mechanism, specifically: the other ends of the two rotating rods respectively abut against or pass through the corresponding slots on the ash storage tank.

7. A high temperature combustion device for ash-rich and low calorific value synthesis gas according to claim 1 or 6, characterized in that: The moving mechanism includes: a support base for supporting the main mechanism; three or more grooved bottom plates for placing the ash storage tanks; six or more clamping blocks for serving as guide wheel movement tracks; guide wheels for driving the bottom plate to move forward and backward along the clamping blocks; an inclined pad for guiding the bottom plate to slide from the support base to the ground; a handle for pulling the bottom plate; a connecting shaft for connecting the handle and the bottom plate; wherein one ash storage tank is clamped and placed on one bottom plate, and one bottom plate corresponds to two clamping blocks and eight guide wheels; the inclined surface of the pad faces upward; The support seat is fixedly connected to the main body (2) via four support columns, a pad is fixedly connected to the front or rear side of the support seat (601), and the side of the pad opposite to the inclined surface is installed on the ground; a clamping block is installed on the support seat, and a base plate is placed on every two clamping blocks; four guide wheels are installed on one clamping block, and two guide wheels form a group, and the two guide wheels in each group are respectively placed on both sides of the corresponding clamping block, and the eight guide wheels are fixed to the bottom end of the corresponding base plate; a rotatable connecting shaft is respectively installed at the left end and the right end of the front end side or the rear end side of each base plate, and each connecting shaft is also rotatably connected to a handle.

8. The method for using the high-temperature combustion device for syngas with high ash and low calorific value as claimed in any one of claims 1 to 7, characterized in that: The method of use comprises the following steps: Step 1: Open the installation mechanism, and after the temperature in the main mechanism reaches above 800° C., deliver low calorific value synthesis gas into the main mechanism; Step 2: In the main mechanism, the low calorific value synthesis gas begins to burn under the action of high temperature, and the burning gas is fully mixed to form a swirl, which increases its residence time in the main mechanism, so that the low-temperature synthesis gas is completely burned to generate ash and post-combustion gas; the ash falls into the ash collecting mechanism, and the post-combustion gas is discharged to the external flue gas waste heat utilization device; Step 3: Turn on the control switch of the ash storage mechanism to squeeze and seal the ash falling into the ash storage mechanism; Step 4: When the high-temperature combustion device for syngas with high ash and low calorific value according to any one of claims 1 to 7 stops operating or the ash storage mechanism is fully loaded, the sealing mechanism is rotated to open the ash storage mechanism and the fly ash inside the ash storage mechanism is cleaned; Step 5: Pull the moving mechanism, and the moving mechanism drives the ash storage mechanism to slide to the ground, and then remove the ash storage mechanism from the moving mechanism.

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