Waste heat recycling waste incineration boiler

Abstract

The utility model provides a waste heat recycling waste incineration boiler which comprises a boiler body, a smoke outlet formed in the top end of the boiler body, an air outlet pipe arranged on one side of the top end of the smoke outlet, a cooling tower arranged at the other end of the air outlet pipe, an air inlet pipe arranged at the top end of the cooling tower and a feeding assembly arranged at the top end of the boiler body. The filtering tower is arranged at the other end of the air inlet pipe. According to the waste heat recycling waste incineration boiler, waste can be cut into small particles, the small particles are scattered and evenly distributed in the boiler body, accumulation is reduced, the particle size is reduced, the combustion efficiency is improved, smoke dust is reduced, heat of the smoke dust heats the cut and crushed waste, the water content is reduced, and energy is saved. Smoke dust generated by combustion is further reduced, the smoke dust enters the filtering tower, heavy metal and the like in the smoke dust are absorbed by an activated carbon and calcium hydroxide mixed solution sprayed by the atomization spraying head, and sulfide nitrogen oxide dust in the smoke dust is absorbed by an alkaline urea washing solution in the filtering tank.

Description

Technical Field

[0001] The utility model relates to the technical field of incineration boilers, in particular to a waste incineration boiler for recycling waste heat. Background Art

[0002] Incinerators are a type of harmless treatment equipment commonly used for the harmless disposal of medical and domestic waste, including animals. They utilize the combustion of fuels such as coal, oil, and gas to incinerate and carbonize the waste to be treated at high temperatures, achieving the purpose of disinfection. They can handle a wide range of waste, including industrial waste, domestic waste, hospital waste, and waste rubber and plastics. They offer high thermal efficiency and reliability, require minimal operator staff, require minimal maintenance, and achieve high levels of emission control. Existing waste incineration boilers typically place a large amount of waste into the furnace body at once, then close the incinerator door, allow the waste to burn for a period of time, and then add another batch. This can easily cause accumulation, hindering combustion, resulting in longer combustion times and increased smoke and dust production. Utility Model Content

[0003] The utility model provides a waste incineration boiler with waste heat recycling, so as to solve the technical problems existing in the above-mentioned background technology.

[0004] The purpose and efficacy of the waste incineration boiler for waste heat recycling of the utility model are achieved by the following specific technical means: a waste incineration boiler for waste heat recycling, comprising a boiler body, a waste layer arranged at the bottom of the boiler body, an air inlet arranged on the side wall of the boiler body, a smoke outlet arranged at the top of the boiler body, an air outlet pipe arranged on one side of the top of the smoke outlet, a cooling tower arranged at the other end of the air outlet pipe and an air inlet pipe arranged at the top of the cooling tower.

[0005] A feed assembly is provided at the top of the boiler body, comprising a cutting structure provided at the top of the boiler body and a dispersing structure provided at the top of the boiler body;

[0006] The filter tower is arranged at the other end of the air inlet pipe, and comprises a liquid washing structure arranged inside the filter tower and a drainage structure arranged at the bottom end of the filter tower.

[0007] Preferably, the cutting structure of the feed assembly comprises:

[0008] Feed hopper, fixedly installed on the top of the feed assembly;

[0009] The power assembly is fixedly installed on the top of the feed hopper;

[0010] A cutting rod, movably arranged inside the feed assembly;

[0011] The feed pipe is fixedly arranged on the top of the boiler body;

[0012] Cutting teeth, fixedly arranged on the inner wall of the feed pipe;

[0013] A feeding rod, fixedly arranged on the cutting rod;

[0014] The feed shaft passes through the top of the feed hopper and is fixed on the top of the cutting rod;

[0015] The power component is equipped with a motor, a reducer and a conveyor belt, etc. The cutting rod is hollow inside, the feed rod is threaded, the feed shaft is movably connected to the top wall of the feed hopper through a bearing, and the feed shaft is movably connected to the motor inside the power component through a conveyor belt.

[0016] Preferably, the dispersed structure of the feed assembly comprises:

[0017] a dispersion rod, arranged inside the cutting rod;

[0018] The dispersion shaft passes through the top of the feed hopper and is fixed on the top of the dispersion rod;

[0019] A dispersion plate is fixedly arranged at the bottom end of the dispersion rod;

[0020] Dispersion holes are provided through the dispersion plate;

[0021] The height position of the bottom end of the dispersion rod is slightly lower than the height position of the cutting rod; the height position of the top end of the dispersion shaft is slightly higher than the height position of the top end of the feed shaft. The dispersion shaft is movably connected to the internal wall of the top end of the feed hopper through a bearing. The dispersion shaft is movably connected to the internal motor of the power component through a conveyor belt. The dispersion plate is bucket-shaped, and the dispersion holes are arranged in a rectangular array.

[0022] Preferably, the liquid washing structure of the filter tower includes:

[0023] A filter tank is provided at the other end of the air intake pipe;

[0024] The liquid inlet pipe passes through the top of the filter tank;

[0025] The bottom end of the liquid inlet pipe is provided with an atomizing spray head, and the interior of the filter tank is provided with washing liquid.

[0026] Preferably, the drainage structure at the bottom of the filter tower includes:

[0027] The air intake layer is arranged at the bottom end of the filter tank and connected to the air intake pipe;

[0028] A filter layer is provided inside the filter tank;

[0029] The filter hole is provided through the filter layer;

[0030] The size of the filter layer is adapted to the internal size of the filter tank, the filter holes are in the shape of circular holes, and the filter holes are arranged in a rectangular array.

[0031] Preferably, an exhaust pipe is provided through the top of the filter tower, and fans are provided inside the exhaust pipe and the air inlet.

[0032] Preferably, a water inlet pipe and a water outlet pipe are provided through the side wall of the cooling tower.

[0033] Preferably, the smoke outlet is in the shape of an annular pipe.

[0034] Beneficial effects:

[0035] 1. By setting up the cutting structure and the dispersion structure, when the equipment is used, the power line is connected, and the waste is put into the feed hopper. The power component drives the dispersion rod and the cutting rod to rotate. The grinding of the cutting rod and the cutting teeth cuts and grinds the waste into smaller particles. The granular waste is transported to the bottom of the feed pipe by the feed rod and enters the boiler body through the dispersion hole. The dispersion rod drives the dispersion plate to rotate, so that the granular waste passing through is broken up and distributed inside the boiler body, reducing accumulation and reducing particle size, improving combustion efficiency and reducing smoke generation. The smoke generated after combustion starts in the boiler body is discharged from the smoke outlet into the exhaust pipe. The heat of the smoke will heat the feed rod inside the smoke outlet, reducing the water content of the waste, further reducing the smoke generated by combustion, and reusing the waste heat in the smoke.

[0036] 2. By setting up a liquid washing structure and a drainage structure, the smoke dust is cooled by the cooling tower to further utilize the waste heat and then enters the filter tower from the air inlet pipe. The activated carbon and calcium hydroxide mixture sprayed from the atomizing spray head of the liquid inlet pipe further absorbs heavy metals and other substances in the smoke dust. The filter tank is provided with an alkaline urea washing liquid to absorb sulfide, nitrogen oxide and dust in the smoke dust. The filter holes disperse the smoke dust into fine bubbles to increase the contact area with the liquid and improve the absorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0038] Figure 2 This is a schematic diagram of the internal planar structure of the feed pipe of the utility model.

[0039] Figure 3 This is a schematic diagram of the internal structure of the feed pipe of the present utility model.

[0040] Figure 4 This is a schematic diagram of the internal structure of the power component of the utility model.

[0041] Figure 5 This is a schematic diagram of the internal structure of the filter tower of the utility model.

[0042] Figure 1-5 , the corresponding relationship between component names and figure numbers is as follows:

[0043] 1. Boiler body; 2. Feed assembly; 201. Cutting rod; 202. Cutting teeth; 203. Feed pipe; 204. Feed rod; 205. Dispersion hole; 206. Dispersion plate; 207. Dispersion rod; 208. Feed shaft; 209. Dispersion shaft; 3. Power assembly; 4. Feed hopper; 5. Exhaust pipe; 6. Cooling tower; 7. Filter tower; 701. Filter tank; 702. Air intake layer; 703. Filter layer; 704. Filter hole; 8. Air intake pipe; 9. Exhaust pipe; 10. Liquid inlet pipe; 11. Waste layer; 12. Air inlet; 13. Smoke outlet. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] Example 1

[0046] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 As shown, the boiler comprises a main body 1, a waste layer 11 disposed at the bottom of the main body 1, an air inlet 12 disposed on the side wall of the main body 1, a smoke outlet 13 disposed at the top of the main body 1, an air outlet pipe 5 disposed on one side of the top of the smoke outlet 13, a cooling tower 6 disposed at the other end of the air outlet pipe 5, and an air inlet pipe 8 disposed at the top of the cooling tower 6. A feed assembly 2 is disposed at the top of the main body 1 and comprises a cutting structure and a dispersion structure disposed at the top of the main body 1; a filter tower 7 is disposed at the other end of the air inlet pipe 8 and comprises a liquid washing structure disposed inside the filter tower 7 and a drainage structure disposed at the bottom end of the filter tower 7.

[0047] The cutting structure of the feed assembly 2 includes: a feed hopper 4 fixedly mounted on the top of the feed assembly 2, a power assembly 3 fixedly mounted on the top of the feed hopper 4, a cutting rod 201 movably arranged inside the feed assembly 2, a feed pipe 203 fixedly mounted on the top of the boiler body 1, cutting teeth 202 fixedly mounted on the inner side wall of the feed pipe 203, a feed rod 204 fixedly mounted on the cutting rod 201, a feed shaft 208 fixedly mounted on the top of the cutting rod 201 passing through the top of the feed hopper 4, a motor, a speed reducer, and the like are arranged inside the power assembly 3. The cutting rod 201 is hollow inside, the feeding rod 204 is threaded, the feeding shaft 208 is movably connected to the top wall of the feeding hopper 4 through a bearing, the feeding shaft 208 is movably connected to the motor inside the power component 3 through a conveyor belt, the power component 3 drives the dispersion rod 207 and the cutting rod 201 to rotate, and the grinding of the cutting rod 201 and the cutting teeth 202 cuts and grinds the waste into smaller particles. The granular waste is transported by the feeding rod 204 to the bottom of the feeding pipe 203 and enters the interior of the boiler body 1 through the dispersion hole 205.

[0048] The dispersing structure of the feed assembly 2 includes: a dispersing rod 207 disposed within the cutting rod 201; a dispersing shaft 209 extending through the top of the feed hopper 4 and fixedly mounted on the top of the dispersing rod 207; a dispersing plate 206 fixedly mounted at the bottom of the dispersing rod 207; and dispersing holes 205 extending through the dispersing plate 206. The bottom end of the dispersing rod 207 is positioned slightly lower than the height of the cutting rod 201; the top end of the dispersing shaft 209 is positioned slightly higher than the top end of the feed shaft 208. The dispersing shaft 209 is movably connected to the interior of the top wall of the feed hopper 4 via a bearing. The dispersing shaft 209 is also movably connected to the motor within the power assembly 3 via a conveyor belt. The dispersing plate 206 is bucket-shaped, with the dispersing holes 205 arranged in a rectangular array. The dispersing rod 207 drives the dispersing plate 206 to rotate, breaking up the passing waste particles and distributing them within the boiler body 1. This reduces accumulation, reduces particle size, improves combustion efficiency, and reduces smoke generation.

[0049] Example 2

[0050] As attached Figure 1 and attached Figure 5 As shown: the liquid washing structure of the filter tower 7 includes: a filter tank 701 arranged at the other end of the air inlet pipe 8, a liquid inlet pipe 10 passing through the top of the filter tank 701, an atomizing spray head is provided at the bottom of the liquid inlet pipe 10, and a washing liquid is provided inside the filter tank 701. The atomizing spray head of the liquid inlet pipe 10 sprays a mixed liquid of activated carbon and calcium hydroxide to absorb heavy metals and the like in the smoke.

[0051] The drainage structure at the bottom end of the filter tower 7 includes: an air intake layer 702 arranged at the bottom end of the filter tank 701 and connected to the air intake pipe 8, a filter layer 703 arranged inside the filter tank 701, and filter holes 704 arranged through the filter layer 703. The size of the filter layer 703 is adapted to the size of the inside of the filter tank 701. The filter holes 704 are circular small holes and are arranged in a rectangular array. Alkaline urea washing liquid is provided in the filter tank 701 to absorb sulfide and nitrogen oxide dust in the smoke. The filter holes 704 disperse the smoke into small bubbles to increase the contact area with the liquid, thereby improving the absorption efficiency.

[0052] Example 3

[0053] As attached Figure 1 To the attached Figure 4 As shown: an exhaust pipe 9 is provided through the top of the filter tower 7, and fans are provided inside the exhaust pipe 9 and the air inlet 12. Air is introduced into the air inlet 12 to help combustion inside the incinerator, and the exhaust pipe 9 helps the flue gas enter the cooling tower 6 and the filter tower 7.

[0054] A water inlet pipe and a water outlet pipe are provided through the side wall of the cooling tower 6, and the heat of the flue gas is used to heat the cold water flowing through the cooling tower 6, and the waste heat of the incinerator is reused.

[0055] The smoke outlet 13 is in the shape of an annular pipe. The smoke generated after combustion starts in the boiler body 1 is discharged from the smoke outlet 13 into the exhaust pipe 5. The heat of the smoke will heat the feed rod 204 inside the smoke outlet 13, reducing the water content of the waste.

[0056] Working principle: When the equipment is in use, connect the power line, put the waste into the feed hopper 4, and the power component 3 drives the dispersion rod 207 and the cutting rod 201 to rotate. The cutting rod 201 and the cutting teeth 202 grind the waste into smaller particles. The granular waste is transported to the bottom of the feed pipe 203 by the feed rod 204 and enters the boiler body 1 through the dispersion hole 205. The dispersion rod 207 drives the dispersion plate 206 to rotate, so that the granular waste passing through is broken up and distributed to the inside of the boiler body 1, reducing accumulation and reducing particle size, improving combustion efficiency and reducing smoke generation. The smoke generated after combustion starts in the boiler body 1 is discharged from the smoke outlet 13 into the exhaust pipe 5. The heat of the smoke will heat the feed rod 204 inside the smoke outlet 13, reducing the water content of the waste, further reducing the smoke generated by combustion, and reusing the waste heat in the smoke. The smoke enters the cooling tower 6 from the exhaust pipe 5 for cooling and further utilization of the waste heat, and then enters the filter tower 7 from the intake pipe 8. The activated carbon and calcium hydroxide mixture sprayed from the atomizing spray head of the liquid inlet pipe 10 further absorbs heavy metals and the like in the smoke. The filter tank 701 is provided with an alkaline urea washing liquid to absorb sulfide, nitrogen oxide dust in the smoke. The filter holes 704 disperse the smoke into fine bubbles to increase the contact area with the liquid, thereby improving the absorption efficiency.

Claims

1. A waste heat recycling waste incineration boiler, comprising a boiler body (1), a waste material layer (11) arranged at the bottom of the boiler body (1), an air inlet (12) arranged on the side wall of the boiler body (1), a smoke outlet (13) arranged at the top of the boiler body (1), an air outlet pipe (5) arranged on one side of the top of the smoke outlet (13), a cooling tower (6) arranged at the other end of the air outlet pipe (5), and an air inlet pipe (8) arranged at the top of the cooling tower (6), characterized in that: A feed assembly (2) is arranged at the top of the boiler body (1), comprising a cutting structure arranged at the top of the boiler body (1) and a dispersing structure arranged at the top of the boiler body (1); The filter tower (7) is arranged at the other end of the air inlet pipe (8), and comprises a liquid washing structure arranged inside the filter tower (7) and a drainage structure arranged at the bottom end inside the filter tower (7).

2. The waste heat recycling waste incineration boiler according to claim 1, characterized in that: The cutting structure of the feed assembly (2) comprises: A feed hopper (4) is fixedly mounted on the top of the feed assembly (2); A power assembly (3) is fixedly mounted on the top of the feed hopper (4); A cutting rod (201) is movably arranged inside the feeding assembly (2); A feed pipe (203) is fixedly arranged on the top of the boiler body (1); Cutting teeth (202) are fixedly arranged on the inner wall of the feed pipe (203); A feeding rod (204) is fixedly mounted on the cutting rod (201); A feed shaft (208) passes through the top of the feed hopper (4) and is fixedly arranged on the top of the cutting rod (201); The power assembly (3) is internally provided with a motor, a speed reducer and a conveyor belt. The cutting rod (201) is hollow inside. The feed rod (204) is threaded. The feed shaft (208) is movably connected to the top wall of the feed hopper (4) via a bearing. The feed shaft (208) is movably connected to the motor inside the power assembly (3) via a conveyor belt.

3. The waste heat recycling waste incineration boiler according to claim 1, characterized in that: The dispersed structure of the feed assembly (2) comprises: A dispersion rod (207) is disposed inside the cutting rod (201); A dispersion shaft (209) passes through the top of the feed hopper (4) and is fixedly arranged on the top of the dispersion rod (207); A dispersion plate (206) is fixedly arranged at the bottom end of the dispersion rod (207); A dispersion hole (205) is provided through the dispersion plate (206); The bottom end height of the dispersion rod (207) is slightly lower than the height of the cutting rod (201); the top end height of the dispersion shaft (209) is slightly higher than the top end height of the feed shaft (208); the dispersion shaft (209) is movably connected to the top end wall of the feed hopper (4) via a bearing; the dispersion shaft (209) is movably connected to the motor inside the power assembly (3) via a conveyor belt; the dispersion plate (206) is bucket-shaped; and the dispersion holes (205) are arranged in a rectangular array.

4. The waste heat recycling waste incineration boiler according to claim 1, characterized in that: The liquid washing structure of the filter tower (7) comprises: A filter tank (701) is provided at the other end of the air inlet pipe (8); A liquid inlet pipe (10) passes through the top of the filter tank (701); An atomizing spray head is provided at the bottom end of the liquid inlet pipe (10), and washing liquid is provided inside the filter tank (701).

5. The waste heat recycling waste incineration boiler according to claim 1, characterized in that: The drainage structure at the bottom of the filter tower (7) includes: An air intake layer (702) is provided at the bottom end of the filter tank (701) and is connected to the air intake pipe (8); A filter layer (703) is provided inside the filter tank (701); A filter hole (704) is provided through the filter layer (703); The size of the filter layer (703) is adapted to the internal size of the filter tank (701), and the filter holes (704) are in the shape of circular holes, and the filter holes (704) are arranged in a rectangular array.

6. The waste heat recycling waste incineration boiler according to claim 1, characterized in that: An exhaust pipe (9) is provided through the top of the filter tower (7), and fans are provided inside the exhaust pipe (9) and the air inlet (12).

7. The waste heat recycling waste incineration boiler according to claim 1, characterized in that: A water inlet pipe and a water outlet pipe are provided through the side wall of the cooling tower (6).

8. The waste heat recycling waste incineration boiler according to claim 1, characterized in that: The smoke outlet (13) is in the shape of an annular pipe.

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