Urea adding system in dead pet incineration process and using method thereof

Abstract

The invention discloses a urea adding system in the dead pet incineration process and a using method thereof, the urea adding system comprises a urea furnace used for storing urea, a heat preservation furnace is arranged on one side of the urea furnace, an incinerator is installed at the output end of the heat preservation furnace, and a transmission main shaft is arranged in an inner cavity of the urea furnace. The mixing efficiency of urea and demineralized water is remarkably improved through the mixing enhancing assembly, it is ensured that a urea solution can be fully mixed before entering the incinerator, then the utilization efficiency of urea is improved, the usage amount of urea is reduced, and the operation cost is reduced. And effective reduction of nitrogen oxides (NOx) is ensured, the emission amount of harmful gas in the cremation process is remarkably reduced, the environment protection requirement is met, and environment protection is facilitated. Meanwhile, according to the improved system, the risks of blockage and damage are reduced, the maintenance frequency and cost of equipment are reduced, the service life of the system is prolonged, the workload of operators is relieved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pet incineration, and in particular to a urea adding system in a dead pet incineration process and a use method thereof. Background Art

[0002] With the improvement of people's living standards and the popularization of pet culture, more and more families choose to keep pets as part of their family members. When a pet passes away, in order to respect the life of the pet and deal with its remains properly, many countries and regions have established a complete pet funeral service system. Among them, cremation is one of the most common ways to deal with pet remains. However, during the cremation process of pets, due to the nitrogen element contained in the pet's body, harmful gases such as nitrogen oxides (NOx) are easily produced at high temperatures, which are potentially harmful to the environment and human health.

[0003] In order to solve this problem, the commonly used method is to add urea to the crematorium during the cremation process. Urea, as a reducing agent, can reduce NOx to harmless nitrogen (N 2 ) and water (H 2 O), thereby reducing the emission of harmful gases. However, the urea addition device in the prior art has some shortcomings in the actual operation process;

[0004] The traditional urea addition method is usually to pre-dissolve urea in desalted water to form a solution and then spray it into the crematorium. However, due to insufficient mixing, the utilization efficiency of urea is low, which affects the NOx removal effect. This not only wastes resources, but may also affect the stability and safety of the cremation process. At the same time, due to the problem of insufficient mixing, the existing urea addition system is prone to blockage or damage, increasing maintenance costs. Summary of the invention

[0005] The purpose of the present invention is to provide a urea addition system and a method of using the system during the incineration of dead pets, which has the advantages of effectively improving the mixing efficiency of urea and desalted water and ensuring uniform spraying, and solves the problem of insufficient mixing of urea and desalted water, which leads to uneven spraying and high equipment maintenance costs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a urea adding system during the incineration process of dead pets, comprising a urea furnace for storing urea, and a heat preservation furnace is arranged on one side of the urea furnace, and an incineration furnace is installed at the output end of the heat preservation furnace, the inner cavity of the urea furnace is provided with a transmission main shaft, and a stirring blade is installed at the bottom of the surface of the transmission main shaft, and a mixing component is arranged above the inner cavity of the urea furnace, wherein the mixing component comprises an abutment inclined plate, the abutment inclined plate is sleeved on the surface of the transmission main shaft, and a plug-in shaft is arranged around the abutment inclined plate, an exhaust pipe is slidably installed at the bottom of the surface of the plug-in shaft, and an abutment wheel is slidably installed at the end of the abutment inclined plate, wherein a connecting plate is movably installed on the surface of the abutment wheel.

[0007] As a preferred urea addition system in the dead pet incineration process of the present invention, the ends of the inner cavity of the urea furnace are respectively connected with an upper partition and a lower partition, wherein the lower partition is located below the upper partition, and a water pump 1 is installed on the right side of the urea furnace, and the input end and output end of the water pump 1 are respectively connected with a water inlet pipe 1 and a water outlet pipe 1.

[0008] As a preferred urea adding system in the dead pet incineration process of the present invention, a water tank is installed above the urea furnace, and a desalted water adding pipe is installed at the bottom of the inner cavity of the urea furnace.

[0009] As a preferred urea addition system in the dead pet incineration process of the present invention, the inner cavity of the insulation furnace is installed with an inner furnace body, and a heating chamber is opened on the side opposite to the inner furnace body and the insulation furnace. At the same time, a heating ring pipe is installed in the inner cavity of the heating chamber, and a water pump 2 is installed on the right side of the insulation furnace, and the output end and input end of the water pump 2 are respectively connected to a water inlet pipe 2 and a water outlet pipe 2.

[0010] As a preferred urea adding system in the dead pet incineration process of the present invention, a driving member is provided at the end of the transmission main shaft, and the driving member is installed to the end of the urea furnace.

[0011] As a preferred urea addition system in the dead pet incineration process of the present invention, a mounting seat is movably mounted on the middle part of the connecting plate through a rotating shaft, a mounting groove is opened at the upper end of the inner surface of the plug-in shaft, and a sealing plug is connected to the bottom of the plug-in shaft.

[0012] As a preferred urea addition system in the dead pet incineration process of the present invention, an air cylinder is embedded and installed at the end of the exhaust pipe surface, and an exhaust pipe is arranged at the bottom of the exhaust pipe inner cavity, wherein the end of the exhaust pipe is connected to a connecting conduit, and a one-way valve is installed on the surface of the exhaust pipe.

[0013] As a preferred urea addition system in the dead pet incineration process of the present invention, an air guide seat is installed at the bottom of the outer surface of the exhaust pipe, wherein the surface of the air guide seat is connected to the nozzle, and at the same time, an auxiliary mixing blade is installed at the tail end of the exhaust pipe.

[0014] As a preferred urea addition system in the dead pet incineration process of the present invention, a fan-shaped gear is provided at the surface end of the transmission main shaft, and the inner surface of the fan-shaped gear is connected to the surface of the transmission main shaft through a connecting seat, and a toothed disc is provided on the outer surface of the air cylinder.

[0015] The present invention also provides a method for adding and using urea during the incineration of dead pets, comprising the following steps:

[0016] 1) Raw material addition: quantitatively deliver urea raw materials into the urea furnace, and add an appropriate amount of desalted water into the urea furnace through the desalted water adding pipe;

[0017] 2) Urea solution is generated. The driving shaft and stirring blades are driven by the driving parts in the urea furnace to accelerate the dissolution process. During the dissolution, the mixing component is used to add gas to the urea furnace to make the urea raw materials and desalted water fully mixed to prevent undissolved particles from entering the next process. Then the mixed solution is sent to the holding furnace through a water pump.

[0018] 3) Urea solution storage and control: In the insulation furnace, the solution is heated by a heating loop and the temperature in the insulation furnace is controlled at 40°C to ensure the reaction activity of the urea solution and provide the best reaction conditions;

[0019] 4) Urea solution is added. The urea solution stored in the insulation furnace is sent into the incinerator by water pump 2. The urea solution decomposes at high temperature and reacts with NOx in the flue gas to reduce NOx emissions in the incinerator.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When the solution is mixed, the driving member can drive the transmission main shaft to drive the stirring blade to mix the urea in the urea furnace with the desalted water to generate a urea solution. Under the action of the liquid stored in the water tank, the urea concentration in the urea furnace can be adjusted. The mixed urea solution is pumped into the insulation furnace for storage under the action of a water pump. Under the action of the heating ring tube, the solution in the heating ring tube can be heated to keep its temperature at 40°C to prevent the urea solution from crystallizing due to too low a temperature.

[0022] 2. When the transmission main shaft rotates, the present invention can drive the abutment inclined plate to shift the abutment wheel, so that the connecting plate drives the plug-in shaft to make a linear motion in the exhaust pipe, thereby compressing the gas in the exhaust pipe and discharging it through the exhaust pipe and the nozzle, blowing air into the urea furnace, increasing the mixing efficiency of urea and desalinated water solution, and reducing the time for solution mixing. When the transmission main shaft is rotated under force, the exhaust pipe can be intermittently rotated under the cooperation of the fan gear and the connecting seat, and the rotation of the exhaust pipe can eventually drive the auxiliary mixing blade to rotate, thereby assisting in stirring the solution in the urea furnace, and then assisting in increasing the solution mixing efficiency.

[0023] 3. The present invention significantly improves the mixing efficiency of urea and desalted water by adding a mixing component, ensuring that the urea solution can be fully mixed before entering the incinerator, thereby improving the utilization efficiency of urea, reducing the amount of urea used, and reducing operating costs. It ensures the effective reduction of nitrogen oxides (NOx), significantly reduces the emission of harmful gases during the incineration process, meets environmental protection requirements, and is beneficial to protecting the environment. At the same time, the improved system reduces the risk of blockage and damage, reduces the maintenance frequency and cost of equipment, extends the service life of the system, reduces the workload of operators, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure decomposition of the present invention;

[0026] Figure 3 It is a schematic diagram of the assembly of the drive member, the mixing component and the sector gear structure of the present invention;

[0027] Figure 4 It is a schematic cross-sectional view of the structure of the heat preservation furnace of the present invention;

[0028] Figure 5 It is a schematic cross-sectional perspective view of the urea furnace structure of the present invention;

[0029] Figure 6 It is a schematic diagram of a three-dimensional exploded structure of a driving member, a mixing component and a sector gear of the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional assembly of the plug-in shaft and the exhaust pipe structure of the present invention;

[0031] Figure 8 It is a three-dimensional schematic diagram of the local structure of the mixing component of the present invention;

[0032] Fig. 9 It is a three-dimensional schematic diagram of the local structure of the exhaust pipe of the present invention.

[0033] In the figure:

[0034] 100, urea furnace; 101, upper partition; 102, lower partition; 110, water pump 1; 111, water inlet pipe 1; 112, water outlet pipe 1; 120, water tank; 130, desalted water adding pipe;

[0035] 200, insulation furnace; 201, heating chamber; 210, inner furnace body; 220, water pump 2; 221, water inlet pipe 2; 222, water outlet pipe 2; 230, heating ring pipe;

[0036] 300, driving member; 310, transmission main shaft; 311, stirring blade;

[0037] 400, mixing component; 410, abutting inclined plate; 420, abutting wheel; 430, connecting plate; 431, mounting seat; 440, plug-in shaft; 441, mounting groove; 442, sealing plug; 450, exhaust pipe; 451, air bleed pipe; 460, air outlet pipe; 461, one-way valve; 462, connecting duct; 470, air guide seat; 471, nozzle; 480, auxiliary mixing blade;

[0038] 500, sector gear; 501, connecting seat; 510, toothed disc member;

[0039] 600. Incinerator. DETAILED DESCRIPTION

[0040] Example 1

[0041] A method for adding urea during the incineration of dead pets comprises the following steps:

[0042] 1. Raw material addition: quantitatively feeding urea raw material into the urea furnace 100, and adding a proper amount of deionized water into the urea furnace 100 through the deionized water adding pipe 130;

[0043] 2 Urea solution is generated. The driving shaft 310 and the stirring blade 311 are driven by the driving member 300 in the urea furnace 100 to accelerate the dissolution process. During the dissolution, the urea furnace 100 is aerated by the mixing component 400 to fully dissolve the urea raw material and the desalted water to prevent undissolved particles from entering the next process. Then the mixed solution is sent to the insulation furnace 200 through the water pump 110;

[0044] 3. Urea solution storage and control: In the insulation furnace 200, the solution is heated by the heating loop 230, and the temperature in the insulation furnace 200 is controlled at 40°C to ensure the reaction activity of the urea solution and provide the best reaction conditions;

[0045] 4. Urea solution is added. The urea solution stored in the insulation furnace 200 is sent to the incinerator 600 by the water pump 220. The urea solution decomposes at high temperature and reacts with NOx in the flue gas to reduce NOx emissions in the incinerator 600.

[0046] Example 2

[0047] See also Figure 1-9 FIG. 1 shows a urea adding system in the process of incinerating dead pets, comprising a urea furnace 100 for storing urea; the ends of the inner cavity of the urea furnace 100 are respectively connected with an upper partition 101 and a lower partition 102, wherein the lower partition 102 is located below the upper partition 101, and a water pump 110 is installed on the right side of the urea furnace 100, and the input end and output end of the water pump 110 are respectively connected with an inlet pipe 111 and an outlet pipe 112, wherein the other end of the inlet pipe 111 is connected with the liquid outlet end of the urea furnace 100, and the other end of the outlet pipe 112 is connected with the input end of the insulation furnace 200, therefore, the urea solution mixed in the urea furnace 100 can be sent into the insulation furnace 200 for heating and storage by using the water pump 110, the inlet pipe 111 and the outlet pipe 112;

[0048] A water tank 120 is installed above the urea furnace 100, and the water inlet end of the water tank 120 is connected to the external water source through a pipeline. At the same time, the water inlet end of the water tank 120 is extended to the inner cavity of the urea furnace 100 through the pipeline. Therefore, water can be injected into the urea furnace 100 through the water tank 120 to dilute the concentration of the urea solution. A desalted water adding pipe 130 is installed at the bottom of the inner cavity of the urea furnace 100. The desalted water adding pipe 130 can be used to pass the desalted water into the urea furnace 100 and mix it with the urea stored in the urea furnace 100 to generate a urea solution.

[0049] A heat preservation furnace 200 is arranged on one side of the urea furnace 100, and an incinerator 600 is installed at the output end of the heat preservation furnace 200; an inner furnace body 210 is installed in the inner cavity of the heat preservation furnace 200, and a heating chamber 201 for installing a heating ring pipe 230 is provided on the side opposite to the inner furnace body 210 and the heat preservation furnace 200. At the same time, a heating ring pipe 230 is installed in the inner cavity of the heating chamber 201, and the input end and output end of the heating ring pipe 230 are extended to the outside of the heat preservation furnace 200. A water pump 220 is installed on the right side of the heat preservation furnace 200, and the output end and input end of the water pump 220 are respectively connected to a water inlet pipe 221 and a water outlet pipe 222, wherein the other end of the water outlet pipe 222 is connected to the output end of the heat preservation furnace 200, and the other end of the water inlet pipe 221 extends to the incineration treatment equipment, so as to reduce the emission of nitrogen oxides (NOx) generated during the combustion process;

[0050] Specifically, the temperature sensor installed in the inner cavity of the insulation furnace 200 is used to detect the temperature of the solution in the insulation furnace 200, so that it cooperates with the heating ring tube 230 to control the temperature of the urea solution in the insulation furnace 200; and the inner cavity of the insulation furnace 200 can be installed with a liquid level sensor to control the amount of liquid entering the insulation furnace 200;

[0051] The inner cavity of the urea furnace 100 is provided with a transmission main shaft 310, and a stirring blade 311 is installed at the bottom of the surface of the transmission main shaft 310 for mixing urea and demineralized water to generate a urea solution;

[0052] In order to drive the transmission main shaft 310, a driving member 300 is provided at the end of the transmission main shaft 310, and the driving member 300 is installed to the end of the urea furnace 100, and the output end of the driving member 300 penetrates the inner cavity of the urea furnace 100 and is connected to the end of the transmission main shaft 310;

[0053] A mixing component 400 is arranged above the inner cavity of the urea furnace 100, wherein the mixing component 400 includes an abutting inclined plate 410, which is sleeved on the surface of the transmission main shaft 310, and a plug-in shaft 440 is arranged around the abutting inclined plate 410, wherein the plug-in shaft 440 penetrates the end of the urea furnace 100 and slides in contact with the connection therewith, and an exhaust pipe 450 is slidably installed at the bottom of the surface of the plug-in shaft 440. When the plug-in shaft 440 moves downward, the compressed air can be discharged through the exhaust pipe 450, and the urea furnace 100 is sprayed, which drives the urea solution in the urea furnace 100 to surge, and increases the mixing of urea and desalted water. In order to improve the matching efficiency, an abutment wheel 420 is slidably installed at the end of the abutment inclined plate 410, wherein a connecting plate 430 is movably installed on the surface of the abutment wheel 420, and the other end of the connecting plate 430 is movably connected to the plug-in shaft 440, so that when the abutment inclined plate 410 is rotated by the driving main shaft 310, it can abut the abutment wheel 420 at the connection, so that the abutment wheel 420 drives the connecting plate 430 to move up and down in a straight line, and then the plug-in shaft 440 compresses the air in the exhaust pipe 450, and sprays the air through the nozzle 471, so as to blow air into the urea furnace 100, thereby improving the mixing efficiency of urea and desalted water in the urea furnace 100.

[0054] A mounting seat 431 is movably mounted on the middle part of the connecting plate 430 through a rotating shaft, and the bottom of the mounting seat 431 is fastened to the top of the upper partition 101 by bolts, the plug-in shaft 440 is in sliding contact with the surface of the water pump 110, and the connection between the plug-in shaft 440 and the water pump 110 is sealed, and the ends of the exhaust pipe 450 respectively penetrate the lower partition 102 and the upper partition 101 and extend to the end of the upper partition 101, wherein the exhaust pipe 450 is in movably contact with the connection between the upper partition 101 and the lower partition 102 through bearings, the upper end of the inner surface of the plug-in shaft 440 is provided with a mounting groove 441, and the other end of the connecting plate 430 extends to the inner cavity of the mounting groove 441 and is movably connected to the connection with it through a rotating shaft, the bottom of the plug-in shaft 440 is connected to a sealing plug 442, and the outer surface of the sealing plug 442 is in sealing and sliding contact with the inner surface of the exhaust pipe 450;

[0055] An air bleed tube 451 is embedded and installed at the end of the surface of the exhaust tube 450. The air bleed tube 451 can increase the air intake area of ​​the exhaust tube 450 to prevent the sealing plug 442 from blocking the air intake of the inner cavity of the exhaust tube 450. The diameter of the middle section of the inner cavity of the exhaust tube 450 is reduced so that the diameter of the upper end of the inner cavity of the exhaust tube 450 is smaller than the diameter of the bottom of the inner cavity of the exhaust tube 450. An air outlet pipe 460 is provided at the bottom of the inner cavity of the exhaust tube 450, wherein the end of the air outlet pipe 460 is connected to a connecting conduit 462, and the other end of the connecting conduit 462 is connected to the connecting conduit 462, and a one-way valve 461 is installed on the surface of the air outlet pipe 460 for one-way circulation of the gas flowing in the inner cavity of the air outlet pipe 460 to prevent gas backflow;

[0056] An air guide seat 470 is installed at the bottom of the outer surface of the exhaust pipe 450, wherein the surface of the air guide seat 470 is connected to a nozzle 471, and the inner cavity of the air guide seat 470 is respectively connected to the inner cavity of the exhaust pipe 450 and the nozzle 471, so that an air passage for gas flow is formed between the exhaust pipe 450, the air guide seat 470 and the nozzle 471, so that the gas is finally discharged through the nozzle 471. At the same time, an auxiliary mixing blade 480 is installed at the tail end of the exhaust pipe 450. The auxiliary mixing blade 480 can assist in mixing the solution in the urea furnace 100 when the exhaust pipe 450 is rotated under force, so as to further increase the mixing efficiency of urea and desalinated water solution;

[0057] Furthermore, a liquid level meter and a density sensor for detecting urea concentration are respectively provided in the urea furnace 100;

[0058] Finally, when the solution is mixed, the driving member 300 can drive the transmission main shaft 310 to drive the stirring blade 311 to mix the urea and desalted water in the urea furnace 100 to generate a urea solution. Under the action of the liquid stored in the water tank 120, the urea concentration in the urea furnace 100 can be adjusted. At the same time, when the transmission main shaft 310 rotates, the abutment inclined plate 410 can be driven to shift the abutment wheel 420, so that the connecting plate 430 drives the plug-in shaft 440 to make a linear motion in the exhaust pipe 450, thereby compressing the gas in the exhaust pipe 450 and discharging it through the exhaust pipe 460 and the nozzle 471, blowing air into the urea furnace 100, increasing the mixing efficiency of urea and desalted water solution, and reducing the time for solution mixing generation. When the transmission main shaft 310 is rotated under force;

[0059] A sector gear 500 is disposed at the surface end of the transmission main shaft 310, and the inner surface of the sector gear 500 is connected to the surface of the transmission main shaft 310 through a connecting seat 501, and a toothed disc 510 is sleeved on the outer surface of the air cylinder 451, wherein the toothed disc 510 and the sector gear 500 are meshed with each other;

[0060] Under the cooperation of the sector gear 500 and the connecting seat 501, the exhaust pipe 450 can be intermittently driven to rotate, and the rotation of the exhaust pipe 450 can eventually drive the auxiliary mixing blade 480 to rotate, thereby assisting in stirring the solution in the urea furnace 100, and further assisting in increasing the solution mixing efficiency;

[0061] Furthermore, the working principle of the urea adding system in the dead pet incineration process is that when the solution is mixed, the driving member 300 can drive the transmission main shaft 310 to drive the stirring blade 311 to mix the urea and desalted water in the urea furnace 100 to generate a urea solution, and under the action of the liquid stored in the water tank 120, the urea concentration in the urea furnace 100 can be adjusted. At the same time, when the transmission main shaft 310 rotates, the abutment inclined plate 410 can be driven to shift the abutment wheel 420, so that the connecting plate 430 drives the plug shaft 440 to make a straight line in the exhaust pipe 450. The exhaust pipe 450 is moved linearly, thereby compressing the gas in the exhaust pipe 450 and discharging it through the exhaust pipe 460 and the nozzle 471, blowing air into the urea furnace 100, increasing the mixing efficiency of urea and desalinated water solution, and reducing the time for solution mixing. When the transmission main shaft 310 is rotated under the force, the exhaust pipe 450 can be intermittently rotated under the cooperation of the fan gear 500 and the connecting seat 501, and the rotation of the exhaust pipe 450 can eventually drive the auxiliary mixing blade 480 to rotate, thereby assisting in stirring the solution in the urea furnace 100, and then assisting in increasing the solution mixing efficiency.

[0062] The above are only preferred embodiments of the present invention and are 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 urea adding system during the incineration of dead pets, comprising a urea furnace (100) for storing urea, a heat preservation furnace (200) is arranged on one side of the urea furnace (100), and an incineration furnace (600) is installed at the output end of the heat preservation furnace (200), characterized in that; The inner cavity of the urea furnace (100) is provided with a transmission main shaft (310), and a stirring blade (311) is installed at the bottom of the surface of the transmission main shaft (310), and a mixing component (400) is arranged above the inner cavity of the urea furnace (100), wherein the mixing component (400) comprises an abutting inclined plate (410), the abutting inclined plate (410) is sleeved on the surface of the transmission main shaft (310), and a plug-in shaft (440) is arranged around the abutting inclined plate (410), an exhaust pipe (450) is slidably installed at the bottom of the surface of the plug-in shaft (440), and an abutting wheel (420) is slidably installed at the end of the abutting inclined plate (410), wherein a connecting plate (430) is movably installed on the surface of the abutting wheel (420).

2. The urea adding system in the process of incinerating dead pets according to claim 1, characterized in that: The ends of the inner cavity of the urea furnace (100) are respectively connected to an upper partition (101) and a lower partition (102), wherein the lower partition (102) is located below the upper partition (101), and a water pump (110) is installed on the right side of the urea furnace (100), and the input end and the output end of the water pump (110) are respectively connected to a water inlet pipe (111) and a water outlet pipe (112).

3. The urea adding system in the process of incinerating dead pets according to claim 2, characterized in that: A water tank (120) is installed above the urea furnace (100), and a demineralized water adding pipe (130) is installed at the bottom of the inner cavity of the urea furnace (100).

4. The urea adding system in the process of incinerating dead pets according to claim 3, characterized in that: The inner cavity of the insulation furnace (200) is installed with an inner furnace body (210), and a heating cavity (201) is provided on the side opposite to the inner furnace body (210) and the insulation furnace (200). At the same time, a heating ring pipe (230) is installed in the inner cavity of the heating cavity (201). A second water pump (220) is installed on the right side of the insulation furnace (200), and the output end and input end of the second water pump (220) are respectively connected to a second water inlet pipe (221) and a second water outlet pipe (222).

5. The urea adding system in the process of incinerating dead pets according to claim 4, characterized in that: A driving member (300) is provided at the end of the transmission main shaft (310), and the driving member (300) is mounted to the end of the urea furnace (100).

6. The urea adding system in the process of incinerating dead pets according to claim 5, characterized in that: A mounting seat (431) is movably mounted in the middle of the connecting plate (430) via a rotating shaft, a mounting groove (441) is provided at the upper end of the inner surface of the plug-in shaft (440), and a sealing plug (442) is connected to the bottom of the plug-in shaft (440).

7. The urea adding system in the process of incinerating dead pets according to claim 6, characterized in that: An air bleed cylinder (451) is embedded and installed at the end of the surface of the exhaust cylinder (450), and an air outlet pipe (460) is arranged at the bottom of the inner cavity of the exhaust cylinder (450), wherein the end of the air outlet pipe (460) is connected to a connecting conduit (462), and a one-way valve (461) is installed on the surface of the air outlet pipe (460).

8. The urea adding system in the process of incinerating dead pets according to claim 7, characterized in that: An air guide seat (470) is installed at the bottom of the outer surface of the exhaust pipe (450), wherein the surface of the air guide seat (470) is connected to a nozzle (471), and at the same time, an auxiliary mixing blade (480) is installed at the tail end of the exhaust pipe (450).

9. The urea adding system in the process of incinerating dead pets according to claim 8, characterized in that: A sector gear (500) is disposed at the surface end of the transmission main shaft (310), and the inner surface of the sector gear (500) is connected to the surface of the transmission main shaft (310) via a connecting seat (501), while a toothed disc member (510) is sleeved on the outer surface of the air cylinder (451).

10. A method for adding urea during the incineration of dead pets, comprising the urea adding system during the incineration of dead pets according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) Raw material addition: quantitatively feeding urea raw material into the urea furnace (100), and adding a proper amount of deionized water into the urea furnace (100) through the deionized water adding pipe (130); 2) Urea solution is generated. A driving shaft (310) and a stirring blade (311) are driven by a driving member (300) in a urea furnace (100) to accelerate the dissolution process. During the dissolution process, a mixing component (400) is used to add gas to the urea furnace (100) so that the urea raw material and the desalted water are fully mixed to prevent undissolved particles from entering the next process. The mixed solution is then sent to the insulation furnace (200) through a water pump (110); 3) Storage and control of urea solution: In the heat preservation furnace (200), the solution is heated by a heating ring (230), and the temperature in the heat preservation furnace (200) is controlled to be 40° C., so as to ensure the reaction activity of the urea solution and provide the best reaction conditions; 4) Urea solution is added. The urea solution stored in the insulation furnace (200) is sent into the incinerator (600) by using the second water pump (220). The urea solution decomposes at high temperature and reacts with NOx in the flue gas, thereby reducing NOx emissions in the incinerator (600).

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