A sludge incinerator

Abstract

The invention discloses a sludge incinerator, comprising a furnace body, a drying zone, a dry distillation zone, a combustion zone and a burnout zone, wherein the honeycomb ceramic is arranged at the inlet of the inner flue on the upper side of the combustion zone, and the outlet below the inner flue is connected to the inlet of the flue pipe, and the outlet of the flue pipe is connected to the exhaust fan after the flue pipe passes through the combustion zone, the dry distillation zone and the drying zone; the flue pipe and the sludge slide are arranged below the drying zone and the dry distillation zone, and a spacing gap is arranged between the flue pipe and the sludge slide, and the spacing gap forms a flat sludge channel; the invention also comprises a combustion-supporting fan and an inner circulation air duct, the combustion-supporting air duct is located below the combustion zone, and the combustion-supporting air duct is located below the front-stage grate, and the exhaust port and the air intake port of the combustion-supporting fan are respectively connected to the combustion-supporting air duct and the inner circulation air duct. Combustion-supporting fuel can be saved. It is conducive to fully and evenly heating the sludge. Secondary pollution of the flue gas by the sludge can be avoided.

Description

Technical Field

[0001] The invention relates to a sludge incinerator, in particular to an incinerator used for harmless treatment of sludge, belonging to the technical field of environmental protection. Background Art

[0002] At present, the sludge squeezed from sewage treatment plants still contains a high amount of water. This wet sludge carries bacteria, viruses, parasites and foul odors, which seriously pollute the environment and create the risk of disease transmission.

[0003] At present, some cities have begun to adopt the sludge treatment method of pressing and then drying. The most representative method is the heat pump drying method. The weight of the sludge is reduced by drying to reduce transportation costs, while reducing the amount of sludge disposal. The odor of the sludge after drying is also reduced. However, sludge drying requires a very high energy consumption cost.

[0004] Although the weight of sludge is reduced after drying, the final environmental pollution problem has not been fundamentally solved. There are still a lot of pests and diseases in the dried sludge. When the sludge absorbs rainwater, it will pollute the surrounding environment again, including the pollution of soil and water sources.

[0005] Previous methods of treating sludge included drying the sludge before incineration, which increased equipment investment and treatment procedures, resulting in relatively high treatment costs, making this technology difficult to promote. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a sludge incinerator, which is suitable for harmless reduction treatment of sludge squeezed from a sewage treatment plant, thereby simplifying the sludge treatment process, saving energy consumption and reducing secondary pollution.

[0007] The present invention can adopt the following technical scheme:

[0008] A sludge incinerator comprises a furnace body, a drying zone, a dry distillation zone, a combustion zone and a burnout zone, wherein the drying zone, the dry distillation zone and the combustion zone are located at the upper part of the furnace body; the drying zone, the dry distillation zone, the combustion zone and the burnout zone are arranged in sequence; the drying zone is close to the sludge inlet, and the burnout zone is close to the slag discharge port; the burnout zone is located below the combustion zone; incompletely sealed partition walls are respectively arranged between the drying zone, the dry distillation zone and the combustion zone;

[0009] It also includes a sludge chute, a front grate, and a rear grate. The feed port, sludge chute, front grate, rear grate, and slag outlet are arranged in sequence; the front grate and the rear grate are located below the combustion zone;

[0010] It also includes a honeycomb ceramic, an inner flue, a flue gas pipe row, and an exhaust fan. The honeycomb ceramic is arranged at the entrance of the inner flue on the upper side of the combustion zone. The outlet below the inner flue is connected to the entrance of the flue gas pipe row. After the flue gas pipe row passes through the combustion zone, the dry distillation zone, and the drying zone, its outlet is connected to the exhaust fan.

[0011] Below the drying area and the distillation area are flue gas pipes and sludge slides, respectively. The sludge slides are placed at an angle. A spacing gap is provided between the flue gas pipes and the sludge slides, and the spacing gap forms a flat sludge channel.

[0012] It also includes a combustion-supporting air fan and an internal circulation air duct. The combustion-supporting air duct is located below the combustion zone, and the combustion-supporting air duct is located below the front-stage grate. The exhaust port and the air intake port of the combustion-supporting air fan are respectively connected to the combustion-supporting air duct and the internal circulation air duct. The internal circulation air duct is connected to the drying zone, and the combustion-supporting air fan is connected to the burner to form an air flow circulation channel between the combustion-supporting air duct-combustion zone-drying zone-drying zone-combustion-supporting air duct.

[0013] The present invention can further adopt the following improvement measures to solve the problem:

[0014] Further improvement measures are as follows: air gaps are left above and below the partition wall between the combustion zone and the dry distillation zone; and air gaps are left below the partition wall between the dry distillation zone and the drying zone.

[0015] Further improvement measures are as follows: the front grate is a stepped louver-type grate.

[0016] Further improvement measures are as follows: the rear grate is located below the burning zone; the rear grate is a gravity-type automatic slag discharge grate, and the slag discharge port is located below it.

[0017] A further improvement measure is that the flue gas pipe row is a plurality of arranged ceramic tubes with gaps between each ceramic tube.

[0018] A further improvement measure is that the upper surface of the sludge chute is made of a smooth refractory material, and the lower surface is provided with a heat insulating layer.

[0019] A further improvement measure is that the difference in the placement inclination angles of the flue gas pipe row and the sludge chute is less than 15 degrees.

[0020] A further improvement measure is that the feed inlet is provided with an automatic feeding mechanism.

[0021] Further improvement measures are as follows: the sludge chute and its support frame are independent of the furnace body, and wheels are provided under the support frame to move the sludge chute and its support frame to adjust the distance between the sludge chute and the flue gas pipe row.

[0022] The above technical solution has the following technical effects:

[0023] 1. The present invention adopts an indirect heat exchange method of non-contact between flue gas and sludge, and utilizes the high-temperature flue gas generated by sludge incineration to first dry and carbonize the sludge before incineration, which can save combustion-supporting fuel.

[0024] 2. The present invention adopts a high-temperature, low-oxygen dry distillation method to first pyrolyze most of the organic matter in the sludge to produce combustible gases mainly composed of CO, and then introduce these combustible gases to the combustion zone to participate in the incineration of the sludge, which can improve the combustion efficiency and greatly reduce the content of harmful components in the flue gas. Compared with direct combustion, it can greatly reduce the amount of combustion-supporting air and reduce the heat dissipation of the flue gas to achieve energy saving, and also avoid excessive combustion-supporting air that reduces the combustion temperature and produces black smoke.

[0025] 3. The present invention utilizes the heat storage property of honeycomb ceramics and the increased surface area of ​​the honeycomb holes to allow the incompletely burned components in the flue gas to be completely burned again after entering the honeycomb holes, thereby further reducing the harmful components in the flue gas.

[0026] 4. The present invention controls the flow rate of the internal circulation airflow through the combustion-supporting fan, and can introduce part of the high-temperature flue gas in the combustion zone into the distillation zone and the drying zone, cooperate with the flue gas pipe to distill and dry the sludge respectively, and can achieve more accurate temperature and oxygen control in the distillation zone.

[0027] 5. The water vapor and odor generated in the drying zone of the present invention are introduced into the combustion zone through the combustion-supporting fan to participate in the combustion. On the one hand, water vapor can be pyrolyzed at high temperature to produce a small amount of hydrogen to assist combustion. On the other hand, the odor generated in the sludge drying process can be eliminated through high-temperature combustion.

[0028] 6. The present invention uses a smoke exhaust fan to exhaust the furnace under negative pressure. The negative pressure furnace can prevent the hot gas from leaking out, which is safer. The oxygen sucked in through the negative pressure at the slag discharge port can assist combustion and reduce the slag discharge temperature.

[0029] 7. Since the furnace is a high-temperature and corrosive environment, the present invention is prone to mechanical failure compared to the traditional chain-type feeding technology. The present invention adopts an inclined sludge slide. Only a little thrust needs to be applied at the feed inlet and the sludge can slide freely to complete the sludge and slag in the furnace. There is no mechanical transmission mechanism in the furnace, which can avoid mechanical failure and reduce the equipment cost.

[0030] 8. The flat channel between the flue gas pipe row and the sludge chute of the present invention can make the sludge thin when entering, which is conducive to sufficient and uniform heating of the sludge in the distillation and drying stages.

[0031] 9. The flue gas and sludge of the present invention adopt a non-contact heat exchange method, and the flue gas does not come into contact with the sludge during the whole process, which can prevent the oxygen component in the flue gas from affecting the normal distillation and avoid the secondary pollution of the flue gas by the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the present invention.

[0033] Figure 2 yes Figure 1 Schematic diagram of a local cross-section in the AA direction.

[0034] Figure 3 It is another structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to specific embodiments.

[0036] Example 1: Figure 1 , Figure 2 As shown, a sludge incinerator comprises a furnace body 1, a drying zone 2, a dry distillation zone 3, a combustion zone 4 and a burnout zone 5, wherein the drying zone, the dry distillation zone and the combustion zone are located at the upper part of the furnace body; the drying zone 2, the dry distillation zone 3, the combustion zone 4 and the burnout zone 5 are arranged in sequence, the drying zone 2 is close to the sludge feed port 18, the burnout zone 5 is close to the slag discharge port 52, and the burnout zone is located below the combustion zone; the drying zone 2, the dry distillation zone 3 and the combustion zone 4 are respectively provided with corresponding incompletely sealed partition walls 7 and partition walls 8.

[0037] It also includes a feed port 18, a sludge chute 14, a front grate 61, a rear grate 51 and a slag outlet 52, wherein the feed port 18, the sludge chute 14, the front grate 61, the rear grate 51 and the slag outlet 52 are arranged in sequence; the front grate and the rear grate are located below the combustion zone 51.

[0038] It also includes a honeycomb ceramic 10, an inner flue 11, a flue pipe row 13, and an exhaust fan 17. The honeycomb ceramic 10 is arranged at the entrance of the inner flue 11 on the upper side of the combustion zone 4. The outlet 12 below the inner flue is connected to the entrance of the flue pipe row 13. After the flue pipe row 13 passes through the combustion zone 4, the dry distillation zone 3 and the drying zone 2, its outlet is connected to the exhaust fan 17. Below the dry zone 2 and the dry distillation zone 3 are the flue pipe row 13 and the sludge chute 14, which is placed obliquely; there is a spacing gap between the flue pipe row 13 and the sludge chute 14, and the spacing gap forms a flat sludge channel 15.

[0039] It also includes a combustion-supporting fan 63 and an internal circulation air duct 20. The combustion-supporting air duct is located below the combustion zone, and the combustion-supporting air duct is located below the front-stage grate. The exhaust port and the air intake port of the combustion-supporting fan 63 are respectively connected to the combustion-supporting air duct 6 and the internal circulation air duct 20. The internal circulation air duct 20 is connected to the drying zone 2, and the combustion-supporting fan 63 is connected to the burner 62, so as to form an airflow circulation channel between the combustion-supporting air duct 6-combustion zone 4-retorting zone 3-drying zone 2-combustion-supporting air duct 6.

[0040] A further improved embodiment is as follows: the partition wall 8 between the combustion zone 4 and the distillation zone 3 has airflow gaps at the top and bottom;

[0041] A further improved embodiment is as follows: a gap for air flow is left below the partition wall 7 between the retorting area 3 and the drying area 2;

[0042] A further improved embodiment is as follows: below the combustion zone 4 is a front grate 61, and below the front grate 61 is a combustion-supporting air duct 6;

[0043] A further improved embodiment is as follows: the front grate 61 is a step-shaped shutter grate. The front grate is composed of a plurality of flat grate bars, each of which is arranged in a step-shaped manner in sequence, the upper surface of each grate bar is inclined downward toward the slag trough, and there is a gap between adjacent grate bars. Of the two adjacent grate bars, the head end of the grate bar at the lower horizontal position is located directly below the tail end of the other grate bar.

[0044] A further improved embodiment is as follows: the combustion-supporting air duct 6 is provided with a burner 62;

[0045] A further improved embodiment is as follows: below the burnout zone 5 is a rear grate 51, below which is a slag discharge port 52;

[0046] A further improved embodiment is as follows: the rear grate 51 is a gravity-type automatic slag discharge grate;

[0047] A further improved embodiment is that the smoke pipe row 13 is composed of a plurality of arranged ceramic tubes, with gaps (such as Figure 2 );

[0048] A further improved embodiment is as follows: the upper surface of the sludge chute 14 is made of a smooth refractory material, and the lower surface is provided with a heat insulating layer 16;

[0049] A further improved embodiment is that the flue gas pipe row 13 and the sludge chute 14 are placed at a relatively close angle (relative to the ground), and the angle difference is less than 15 degrees, or is directly the same;

[0050] A further improved embodiment is as follows: the feed inlet 18 is provided with an automatic feeding mechanism 19;

[0051] A further improved embodiment is as follows: the wall structure of the furnace body 1 is composed of refractory bricks, heat insulating materials and steel structures from the inside to the outside.

[0052] Working principle: When installing the furnace body 1, the slope of the sludge chute 14 is given priority, and the slope is adjusted to the most appropriate slope so that the sludge particles only need to apply a little thrust on the chute to make the sludge particles slide down.

[0053] The movement path of the sludge particles: the sludge particles are pushed to the sludge chute 14 from the entrance at the upper right corner through a continuous or intermittent feeding mechanism, and the sludge particles slide down along the sludge channel 15 between the flue gas pipe row 13 and the sludge chute 14, passing through the drying area 2 and the distillation area 3 respectively, and then the sludge enters the combustion area 4 and falls onto the front grate 61, and then falls to the burnout area 5 and stays for a period of time, and then is discharged from the slag discharge port 52.

[0054] Fresh air entry path: The suction force of the flue gas exhaust fan 17 is used to create a negative pressure in the furnace, and fresh air is sucked in from the slag discharge port 52 to participate in the combustion of the burnout zone 5, forming flue gas 21 with a high oxygen content and temperature.

[0055] Internal circulation airflow path: driven by the combustion-supporting fan 63, an airflow circulation is formed among the combustion-supporting air duct 6-combustion zone 4-retorting zone 3-drying zone 2-internal circulation air duct 20-combustion-supporting fan 63-combustion-supporting air duct 6. The internal circulation airflow passes through the retorting zone and the drying zone through the gaps under the partition walls 8 and 7, and takes away part of the combustible gas and water vapor in the retorting zone and the drying zone respectively.

[0056] Air flow path of volatile combustible gas in the distillation zone: A part of the combustible gas generated in the distillation zone 3 enters the inner circulation air flow path and is sent to the combustion zone through the inner circulation air duct 20 for combustion, and another part of the combustible gas 23 passes through the gap above the partition wall 8 and merges with the flue gas 22 of the combustion zone 4 and then enters the honeycomb ceramic 10 for further combustion.

[0057] Flue gas path: All gases finally converge into the honeycomb ceramic 10 for the last high-temperature pyrolysis, forming high-temperature flue gas 24 which flows out of the honeycomb ceramic 10 through the inner flue 11 into the flue pipe 13 and is finally discharged by the flue gas exhaust fan 17 .

[0058] Since the movement of the sludge is in the opposite direction to the high-temperature flue gas that finally flows out, the sludge in contact with the flue gas pipe row 13 obtains heat from the flue gas by heat conduction and heat radiation. The sludge in the drying zone 2 obtains relatively low-temperature flue gas heat, which can dry the water in the sludge and generate water vapor. The sludge in the dry distillation zone 3 obtains relatively high-temperature flue gas heat and has dry distillation conditions to volatilize the organic components in the sludge to generate combustible gas.

[0059] After pyrolysis in the distillation zone 3, the sludge particles are basically carbonized and slide onto the front grate 61 in the combustion zone 4. The carbonized sludge in the combustion zone 4 obtains a combustible mixed gas with water vapor from the combustion-supporting air duct 6 and the remaining oxygen from the burnout zone 5 to obtain better combustion conditions so that the sludge enters a combustion state. If the temperature in the combustion zone 4 is low, the burner 62 can be started to assist combustion. The incompletely burned charcoal slag will fall on the rear grate 51 in the burnout zone 5 and continue to burn. The burnout zone 5 is in a groove shape and can store a certain amount of slag. The rear grate 51 has the function of automatically discharging slag by gravity. When the slag reaches a certain weight, the rear grate 51 will automatically open and unload part of the slag. In this way, a certain amount of slag can always be kept in the burnout zone 5, so that the incompletely burned sludge has enough time to be completely burned in the burnout zone.

[0060] A part of the volatile combustible gas released from the dry distillation zone 3 enters the front grate of the combustion zone through the internal circulation air duct 20 to participate in the combustion, and another part of the combustible gas 23 is sucked by the smoke exhaust fan 17 to pass through the gap above the partition wall 8 and mix with the smoke 22 from the burnout zone and the combustion zone and then enter the honeycomb ceramic 10 for combustion. The combustion of the combustible gas through the honeycomb bed can avoid the generation of black smoke.

[0061] Since the air inlet and the air outlet of the combustion-supporting fan 63 are both connected to the furnace to form a closed cycle, the fresh air does not enter, but the high-temperature flue gas flow rate from the combustion zone 4 to the retorting zone 3 and the drying zone 2 can be controlled by the variable frequency fan, thereby adjusting the temperature of the retorting zone 3 and the drying zone 2. The temperature of the retorting zone 3 and the drying zone 2 is affected by the flue gas pipe 13 and the retorting flue gas at the same time. Under normal circumstances, the temperature of the flue gas in the flue gas pipe 13 is above 800°C. It is more appropriate to use the indirect heat exchange of the flue gas pipe as the basic heat source and the direct heating of the retorting flue gas as the heat compensation to coordinately control the average temperature of the retorting zone 3 and the drying zone 2 to about 600°C and 300°C respectively.

[0062] The flue gas exhaust fan 17 draws air inward through the flue gas pipe 13 to generate negative pressure in the furnace, which will inhale fresh air from the slag discharge port 52 to assist combustion. The speed of the flue gas variable frequency fan is controlled to control the amount of fresh air inhaled to assist combustion.

[0063] The flue gas will not come into contact with the sludge when flowing in the flue gas pipe 13, and the waste heat of the flue gas heats the sludge indirectly, which can prevent the oxygen component in the flue gas from affecting the normal distillation, and also avoid the flue gas 24 after high-temperature combustion from being contaminated by the sludge in the sludge channel 15, causing the flue gas emission to fail to meet the standards.

[0064] The fresh air inlet (slag discharge port 52) ​​and the smoke exhaust port (honeycomb ceramic 10) of the incinerator designed by the present invention are both arranged on the wall 9 on the left side of the combustion zone. Most of the fresh air entering directly enters the honeycomb ceramic and the smoke channel after participating in the combustion in the ember zone and the combustion zone. The amount of oxygen entering the distillation zone is very limited. Therefore, the oxygen content of the smoke refluxed from the combustion zone driven by the combustion-supporting blower is not high, so that the distillation zone can maintain the high temperature and low oxygen conditions required for distillation.

[0065] Example 2: Figure 3 As shown, a sludge incinerator comprises a furnace body 1, a drying zone 2, a dry distillation zone 3, a combustion zone 4 and a burnout zone 5, wherein the drying zone, the dry distillation zone and the combustion zone are located at the upper part of the furnace body; the drying zone 2, the dry distillation zone 3, the combustion zone 4 and the burnout zone 5 are arranged in sequence, the drying zone 2 is close to the sludge feed port 18, the burnout zone 5 is close to the slag discharge port 52, and the burnout zone is located below the combustion zone; incompletely sealed partition walls 7 and 8 are respectively provided between the drying zone 2, the dry distillation zone 3 and the combustion zone 4.

[0066] It also includes a feed port 18, a sludge chute 14, a front grate 61, a rear grate 51 and a slag outlet 52, wherein the feed port 18, the sludge chute 14, the front grate 61, the rear grate 51 and the slag outlet 52 are arranged in sequence; the front grate and the rear grate are located below the combustion zone 51.

[0067] It also includes a honeycomb ceramic 10, an inner flue 11, a flue pipe row 13, and an exhaust fan 17. The honeycomb ceramic 12 is arranged at the entrance of the inner flue 11 on the upper side of the combustion zone 4. The outlet 12 below the inner flue is connected to the entrance of the flue pipe row 13. After the flue pipe row 13 passes through the combustion zone 4, the dry distillation zone 3 and the drying zone 2, its outlet is connected to the exhaust fan 17. Below the dry zone 2 and the dry distillation zone 3 are the flue pipe row 13 and the sludge chute 14, respectively. There is a spacing gap between the flue pipe row 13 and the sludge chute 14, and the spacing gap forms a flat sludge channel 15.

[0068] It also includes a combustion-supporting fan 63 and an internal circulation air duct 20. The combustion-supporting air duct is located below the combustion zone, and the combustion-supporting air duct is located below the front-stage grate. The exhaust port and the air intake port of the combustion-supporting fan 63 are respectively connected to the combustion-supporting air duct 6 and the internal circulation air duct 20. The internal circulation air duct 20 is connected to the drying zone 2, and the combustion-supporting fan 63 is connected to the burner 62, so as to form an airflow circulation channel between the combustion-supporting air duct 6-combustion zone 4-retorting zone 3-drying zone 2-combustion-supporting air duct 6.

[0069] The sludge chute 14 and its support frame are independent of the furnace body. The sludge chute 14 and its support frame are separate parts, and the support frame is provided with wheels 25 below, which can be moved left and right to adjust the distance between the sludge chute 14 and the flue gas pipe row 13, and can flexibly adjust the height between the upper and lower parts of the sludge channel 15, thereby changing the size of the sludge channel.

[0070] Other details are consistent with those in Example 1.

[0071] Embodiment 2 can flexibly adjust the channel space size between the slide and the smoke pipe row, and has a wider range of adaptability to combustibles of different shapes and sizes. This embodiment can be applied to waste incineration treatment.

[0072] The burner can be installed at one end of the combustion-supporting air duct in the length direction, and the flame direction is consistent with the length direction of the combustion-supporting air duct.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sludge incinerator, characterized in that: It includes a furnace body, a drying area, a dry distillation area, a combustion area and a burnout area, wherein the drying area, the dry distillation area and the combustion area are located at the upper part of the furnace body; the drying area, the dry distillation area, the combustion area and the burnout area are arranged in sequence; the drying area is close to the sludge inlet, and the burnout area is close to the slag discharge port; the burnout area is located below the combustion area; incompletely sealed partition walls are respectively arranged between the drying area, the dry distillation area and the combustion area; It also includes a sludge chute, a front grate, and a rear grate. The feed port, sludge chute, front grate, rear grate, and slag outlet are arranged in sequence; the front grate and the rear grate are located below the combustion zone; It also includes a honeycomb ceramic, an inner flue, a flue gas pipe row, and an exhaust fan. The honeycomb ceramic is arranged at the entrance of the inner flue on the upper side of the combustion zone. The outlet below the inner flue is connected to the entrance of the flue gas pipe row. After the flue gas pipe row passes through the combustion zone, the dry distillation zone, and the drying zone, its outlet is connected to the exhaust fan. Below the drying area and the distillation area are flue gas pipes and sludge slides, respectively. The sludge slides are placed at an angle. A spacing gap is provided between the flue gas pipes and the sludge slides, and the spacing gap forms a flat sludge channel. It also includes a combustion-supporting air fan and an internal circulation air duct. The combustion-supporting air duct is located below the combustion zone, and the combustion-supporting air duct is located below the front-stage grate. The exhaust port and the air intake port of the combustion-supporting air fan are respectively connected to the combustion-supporting air duct and the internal circulation air duct. The internal circulation air duct is connected to the drying zone, and the combustion-supporting air fan is connected to the burner to form an air flow circulation channel between the combustion-supporting air duct-combustion zone-drying zone-drying zone-combustion-supporting air duct.

2. The sludge incinerator according to claim 1, characterized in that: Air-passing gaps are left above and below the partition wall between the combustion zone and the dry distillation zone; and air-passing gaps are left below the partition wall between the dry distillation zone and the drying zone.

3. The sludge incinerator according to claim 1 is characterized in that: The front grate is a stepped louver-type grate.

4. The sludge incinerator according to claim 1 is characterized in that: Below the burning zone is the rear grate; the rear grate is a gravity-type automatic slag discharge grate, and below it is the slag discharge port.

5. The sludge incinerator according to claim 1 is characterized in that: The flue gas pipe row is a plurality of arranged ceramic tubes, with gaps between the ceramic tubes.

6. The sludge incinerator according to claim 1 is characterized in that: The upper surface of the sludge slide is made of smooth refractory material, and the lower surface is provided with a heat insulation layer.

7. The sludge incinerator according to claim 1 is characterized in that: The difference in the placement inclination angles of the flue gas pipe row and the sludge chute is less than 15 degrees.

8. The sludge incinerator according to claim 1 is characterized in that: The feeding port is provided with an automatic feeding mechanism.

9. The sludge incinerator according to claim 1, characterized in that: The sludge chute and its supporting frame are independent of the furnace body. Wheels are arranged under the supporting frame to move the sludge chute and its supporting frame to adjust the distance between the sludge chute and the flue gas pipe row.

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