Medical waste thermal decomposition treatment device

Abstract

The utility model relates to the technical field of medical waste treatment, in particular to a thermal decomposition treatment device for medical wastes, which not only can perform high-temperature steam sterilization and disinfection on the inside of a thermal treatment device to prevent bacteria from overflowing and diffusing to influence the body health of workers, but also can utilize heat generated by incineration to reduce the energy consumption. The energy utilization rate is improved; comprising a treatment box; the device further comprises a conveying mechanism, a crushing mechanism, a screening mechanism, an incineration mechanism and a disinfection mechanism, the conveying mechanism is installed on the treatment box and conveys waste, the crushing mechanism is installed on the conveying mechanism and crushes the waste, and the screening mechanism is installed on the crushing mechanism and screens the waste. The incineration mechanism is installed on the treatment box and conducts thermal decomposition on waste, and the disinfection mechanism is installed on the treatment box and conducts high-temperature steam disinfection on the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical waste treatment, particularly to a medical waste thermal decomposition treatment device. BACKGROUND

[0002] Medical waste refers to the waste generated in medical, preventive, health care and other related activities of medical and health institutions, which has direct or indirect infectivity, toxicity and other harmfulness. When medical waste is treated, a medical waste treatment device needs to be used.

[0003] The existing medical waste thermal decomposition treatment device, for example, the medical waste treatment environmental protection device disclosed in the utility model patent with the application number 202421015199.0, mainly includes a motor compartment, a motor gear fixedly connected to one end of a motor shaft, the teeth of the motor gear meshing with the teeth of a driven gear, a crushing compartment fixedly connected with a combustion compartment, four supports fixedly connected to the top end of the combustion compartment, and a fuel compartment fixedly connected to the top end of the supports. In use, first, the power of the motor is turned on, so that the motor rotates to drive the rotation of the crushing knife. The medical waste to be crushed is put into the crushing compartment from the feed baffle. After the medical waste is crushed by the crushing knife, the medical waste slides into the combustion compartment from the sliding plate. The high-temperature spray gun burns the medical waste to ash.

[0004] However, bacteria are easily left on medical waste. The existing treatment device is difficult to sterilize and disinfect itself. When the waste is put in, the bacteria in the device are easily spilled out. Moreover, the existing treatment device does not utilize the heat generated by thermal decomposition, resulting in waste of heat. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a medical waste thermal decomposition treatment device which can not only sterilize and disinfect the inside of the heat treatment device with high-temperature steam to avoid the spread of bacteria and affect the health of workers, but also utilize the heat generated by burning to improve the energy utilization rate.

[0006] This utility model discloses a medical waste pyrolysis treatment device, including a treatment box; it also includes a conveying mechanism, a crushing mechanism, a screening mechanism, an incineration mechanism, and a disinfection mechanism. The conveying mechanism is installed on the treatment box and conveys the waste; the crushing mechanism is installed on the conveying mechanism and crushes the waste; the screening mechanism is installed on the crushing mechanism and screens the waste; the incineration mechanism is installed on the treatment box and pyrolyzes the waste; and the disinfection mechanism is installed on the treatment box and disinfects the device with high-temperature steam. Workers deposit medical waste into the treatment box, the crushing mechanism crushes the medical waste, and the crushed waste falls onto the conveying mechanism after being screened by the screening mechanism. The conveying mechanism moves the medical waste particles forward, and the incineration mechanism ignites and incinerates the medical waste. The heat generated by incineration heats the water in the disinfection mechanism. After a batch of medical waste has been pyrolyzed, high-temperature steam from the disinfection mechanism is released to sterilize the inside of the treatment box, preventing the spread of bacteria and protecting the health of the workers.

[0007] Preferably, the treatment box includes a box body, a sealing cover, a latch, a collection box, a filter plate, and a chimney. The bottom of the box body is connected to the ground, and the inside of the box body has a cavity. The sealing cover is rotatably installed in the cavity of the box body, the latch is installed on the sealing cover, the collection box is slidably installed in the cavity of the box body, the filter plate is installed in the cavity of the box body, and the bottom of the chimney is connected to the top of the box body. The operator pushes the sealing cover inward to put the medical waste into the cavity of the box body, then closes the sealing cover and locks it with the latch. The residue after thermal decomposition falls into the collection box, and the flue gas is filtered by the filter plate and discharged through the chimney.

[0008] Preferably, the conveying mechanism includes a motor, a reducer, two sets of conveyor rollers, and a fireproof conveyor belt. The motor is mounted on the housing, and its output end is connected to the input end of the reducer. Both sets of conveyor rollers are rotatably mounted in the cavity of the housing, and the input end of one set of conveyor rollers is connected to the output end of the reducer. The fireproof conveyor belt is tensioned and installed between the two sets of conveyor rollers. After screening, the medical waste particles fall onto the fireproof conveyor belt. The motor is started, and the motor drives the conveyor rollers to rotate through the reducer. The conveyor rollers drive the fireproof conveyor belt to rotate, and the fireproof conveyor belt moves the medical waste particles within the cavity. The incineration mechanism incinerates the particles, and the incinerated residue continues to move forward with the fireproof conveyor belt and falls into the collection box for collection.

[0009] Preferably, the pulverizing mechanism includes a drive shaft, three sets of pulverizing rollers, multiple sets of first pulleys, multiple sets of first belts, and multiple sets of cutting blades. The drive shaft is mounted on a reducer. The three sets of pulverizing rollers are rotatably mounted in the cavity of the housing. The multiple sets of first pulleys are respectively mounted on the drive shaft and the three sets of pulverizing rollers. The multiple sets of first belts are driven between adjacent sets of first pulleys. The multiple sets of cutting blades are respectively mounted on the three sets of pulverizing rollers. The reducer drives the drive shaft to rotate, and the drive shaft drives the three sets of pulverizing rollers to rotate through the transmission between the multiple sets of first pulleys and the multiple sets of first belts. The three sets of pulverizing rollers drive the multiple sets of cutting blades to rotate, pulverizing the fed-in medical waste.

[0010] Preferably, the screening mechanism includes a screen, a vibrating roller, two sets of protrusions, two sets of second pulleys, and a second belt. The screen is installed inside the cavity of the housing and below multiple sets of cutting blades. The vibrating roller is rotatably installed inside the cavity of the housing. Both sets of protrusions are installed on the vibrating roller. The two sets of second pulleys are respectively installed on the crushing roller and the vibrating roller. The second belt is tensioned and installed between the two sets of second pulleys. The crushed medical waste falls onto the screen, which filters the waste particles. The crushing roller drives the connected second pulley to rotate. The second pulley drives another set of second pulleys and the vibrating roller to rotate via the second belt. The vibrating roller drives the two sets of protrusions to rotate and strike the screen, accelerating the particles to fall through the screen onto the fireproof conveyor belt for rapid combustion and decomposition.

[0011] Preferably, the incineration mechanism includes a gas supply hose and multiple sets of ignition nozzles. The gas supply hose is connected to a gas pipeline, and the multiple sets of ignition nozzles are installed in the cavity of the housing and connected to the inside of the gas supply hose. The gas is delivered to the multiple sets of ignition nozzles through the gas supply hose, and the multiple sets of ignition nozzles ignite the gas, using the flame to burn the medical waste particles and thermally decompose them.

[0012] Preferably, the disinfection mechanism includes heat exchange tubes, an exhaust valve, a gas storage tank, a pressure gauge, a gas supply pipe, a valve, and two sets of nozzles. The heat exchange tubes are installed inside the cavity of the housing, the exhaust valve is installed on the heat exchange tubes, the gas storage tank is installed on the housing and connected to the exhaust port of the exhaust valve, the pressure gauge is installed on the gas storage tank, the gas supply pipe is installed on the housing and connected to the inside of the gas storage tank, the valve is installed on the gas supply pipe, and both sets of nozzles are installed inside the cavity of the housing and connected to the inside of the gas supply pipe. The heat generated by incineration is transferred to the heat exchange tubes to heat the water, and the steam enters the gas storage tank through the exhaust valve for heat preservation and storage. The pressure in the gas storage tank is monitored by the pressure gauge to facilitate timely replenishment of clean water to the heat exchange tubes. After one incineration is completed, the operator opens the valve, and the high-temperature steam is delivered to the two sets of nozzles through the gas supply pipe. The two sets of nozzles spray high-temperature spray paint to sterilize and disinfect the crushing mechanism, the screening mechanism, and the sealing cap, preventing residual bacteria in the cavity from overflowing when the operator opens the sealing cap.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: staff put medical waste into the treatment box, the crushing mechanism crushes the medical waste, the crushed waste is screened by the screening mechanism and falls onto the conveying mechanism, the conveying mechanism drives the medical waste particles forward, the incineration mechanism ignites and incinerates the medical waste, the heat generated by incineration heats the water in the disinfection mechanism, when a batch of medical waste has been heat-treated, the high-temperature steam in the disinfection mechanism is sprayed out to sterilize and disinfect the inside of the treatment box, avoiding the spread of bacteria and affecting the health of staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the processing box of this utility model;

[0016] Figure 3 This is a cross-sectional isometric structural diagram of the conveying mechanism, crushing mechanism and incineration mechanism of this utility model;

[0017] Figure 4 This is a partially enlarged isometric structural diagram of the conveying mechanism and the crushing mechanism of this utility model;

[0018] Figure 5 This is a cross-sectional isometric structural diagram of the screening mechanism and disinfection mechanism of this utility model.

[0019] The attached diagram is labeled as follows: 01, processing box; 11, box body; 12, sealing cover; 13, latch; 14, collection box; 15, filter plate; 16, chimney; 02, conveying mechanism; 21, electric motor; 22, reducer; 23, conveyor roller; 24, fireproof conveyor belt; 03, crushing mechanism; 31, drive shaft; 32, crushing roller; 33, first pulley; 34, first belt; 35, cutting blade; 04, screening mechanism; 41, screen; 42, vibrating roller; 43, protrusion; 44, second pulley; 45, second belt; 05, incineration mechanism; 51, gas supply pipe; 52, ignition nozzle; 06, disinfection mechanism; 61, heat exchange pipe; 62, exhaust valve; 63, gas storage tank; 64, pressure gauge; 65, gas supply pipe; 66, valve; 67, nozzle. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] This utility model discloses a medical waste pyrolysis treatment device, including a treatment box 01; it also includes a conveying mechanism 02, a crushing mechanism 03, a screening mechanism 04, an incineration mechanism 05, and a disinfection mechanism 06. The conveying mechanism 02 is installed on the treatment box 01 and conveys the waste; the crushing mechanism 03 is installed on the conveying mechanism 02 and crushes the waste; the screening mechanism 04 is installed on the crushing mechanism 03 and screens the waste; the incineration mechanism 05 is installed on the treatment box 01 and pyrolyzes the waste; and the disinfection mechanism 06 is installed on the treatment box 01 and disinfects the device with high-temperature steam. The treatment box 01 includes a box body 11, a sealing cover 12, a lock 13, and a collection box 1. 4. Filter plate 15 and chimney 16; the bottom of the housing 11 is connected to the ground; the interior of the housing 11 has a cavity; the sealing cover 12 is rotatably installed in the cavity of the housing 11; the latch 13 is installed on the sealing cover 12; the collection box 14 is slidably installed in the cavity of the housing 11; the filter plate 15 is installed in the cavity of the housing 11; the bottom of the chimney 16 is connected to the top of the housing 11; the conveying mechanism 02 includes a motor 21, a reducer 22, two sets of conveying rollers 23, and a fireproof conveyor belt 24; the motor 21 is installed on the housing 11; the output end of the motor 21 is connected to the input end of the reducer 22; both sets of conveying rollers 23 are rotatably installed in the cavity of the housing 11. Furthermore, the input end of one set of conveyor rollers 23 is connected to the output end of the reducer 22, and the fireproof conveyor belt 24 is tensioned and installed between the two sets of conveyor rollers 23; the crushing mechanism 03 includes a drive shaft 31, three sets of crushing rollers 32, multiple sets of first pulleys 33, multiple sets of first belts 34, and multiple sets of cutting blades 35. The drive shaft 31 is mounted on the reducer 22, the three sets of crushing rollers 32 are all rotatably mounted in the cavity of the housing 11, the multiple sets of first pulleys 33 are respectively mounted on the drive shaft 31 and the three sets of crushing rollers 32, the multiple sets of first belts 34 are driven between two adjacent sets of first pulleys 33, and the multiple sets of cutting blades 35 are respectively mounted on the three sets of crushing rollers 32; the screening mechanism 04 includes The combustion mechanism 05 includes a screen 41, a vibrating roller 42, two sets of protrusions 43, two sets of second pulleys 44, and a second belt 45. The screen 41 is installed inside the cavity of the housing 11 and is not below the multiple sets of cutting blades 35. The vibrating roller 42 is rotatably installed inside the cavity of the housing 11. Both sets of protrusions 43 are installed on the vibrating roller 42. The two sets of second pulleys 44 are respectively installed on the crushing roller 32 and the vibrating roller 42. The second belt 45 is tensioned between the two sets of second pulleys 44. The combustion mechanism 05 includes a gas supply hose 51 and multiple sets of ignition nozzles 52. The gas supply hose 51 is connected to the gas pipeline. The multiple sets of ignition nozzles 52 are installed inside the cavity of the housing 11 and are connected to the inside of the gas supply hose 51.During operation, the operator first pushes the sealing cover 12 inward to deposit medical waste into the cavity of the container 11. Then, the sealing cover 12 is closed, and the motor 21 is started. The motor 21 drives the transmission shaft 31 to rotate via the reducer 22. The transmission shaft 31 drives three sets of crushing rollers 32 to rotate via multiple sets of first pulleys 33 and multiple sets of first belts 34. The three sets of crushing rollers 32 drive multiple sets of cutting blades 35 to rotate, crushing the deposited medical waste. The crushed medical waste falls onto the screen 41, which filters the waste particles. The crushing rollers 32 drive the connected second pulley 44 to rotate. The second pulley 44 drives another set of second pulleys 45 via the second belt 45. The vibrating roller 42 rotates, driving two sets of protrusions 43 to rotate and strike the screen 41, accelerating the particles to fall through the screen 41 onto the fireproof conveyor belt 24 for rapid combustion and decomposition. The motor 21 drives the conveyor roller 23 to rotate via the reducer 22, which in turn drives the fireproof conveyor belt 24 to rotate. The fireproof conveyor belt 24 moves the medical waste particles within the cavity. Gas is delivered through the gas hose 51 to multiple ignition nozzles 52, which ignite the gas and burn the medical waste particles, thermally decomposing them. The residue after incineration continues to move forward with the fireproof conveyor belt 24 and falls into the collection box 14 for collection. The flue gas is filtered through the filter plate 15 and discharged through the chimney 16.

[0023] Example 2

[0024] like Figures 1 to 5As shown, this utility model discloses a medical waste thermal decomposition treatment device, based on Embodiment 1. The disinfection mechanism 06 includes a heat exchange tube 61, an exhaust valve 62, a gas storage tank 63, a pressure gauge 64, a gas supply pipe 65, a valve 66, and two sets of nozzles 67. The heat exchange tube 61 is installed inside the cavity of the housing 11, the exhaust valve 62 is installed on the heat exchange tube 61, the gas storage tank 63 is installed on the housing 11 and communicates with the exhaust port of the exhaust valve 62, the pressure gauge 64 is installed on the gas storage tank 63, the gas supply pipe 65 is installed on the housing 11 and communicates with the interior of the gas storage tank 63, the valve 66 is installed on the gas supply pipe 65, and both sets of nozzles 67 are installed inside the cavity of the housing 11 and communicate with the gas supply pipe. 65 Internal connection; During operation, firstly, the operator pushes the sealing cover 12 inward to deposit medical waste into the cavity of the container 11, then closes the sealing cover 12, starts the motor 21, and the motor 21 drives the transmission shaft 31 to rotate through the reducer 22. The transmission shaft 31 drives three sets of crushing rollers 32 to rotate through the transmission between multiple sets of first pulleys 33 and multiple sets of first belts 34. The three sets of crushing rollers 32 drive multiple sets of cutting blades 35 to rotate and crush the deposited medical waste. The crushed medical waste falls onto the screen 41, and the screen 41 filters the waste particles. The crushing rollers 32 drive the connected second pulley 44 to rotate. The second belt 45 drives another set of second pulleys 44 and vibrating rollers 42 to rotate. The vibrating rollers 42 drive two sets of protrusions 43 to rotate and strike the screen 41, accelerating the particles to fall through the screen 41 onto the fireproof conveyor belt 24 for rapid combustion and decomposition. The motor 21 drives the conveyor roller 23 to rotate via the reducer 22. The conveyor roller 23 drives the fireproof conveyor belt 24 to rotate, and the fireproof conveyor belt 24 moves the medical waste particles within the cavity. Gas is delivered to multiple ignition nozzles 52 through the gas delivery hose 51. The multiple ignition nozzles 52 ignite the gas, using the flame to burn the medical waste particles and thermally decompose them. The residue after incineration continues to move forward with the fireproof conveyor belt 24. The flue gas falls into the collection box 14 and is collected. After being filtered by the filter plate 15, the flue gas is discharged through the chimney 16. The heat generated by combustion is transferred to the heat exchange tube 61 to heat the water. The water vapor enters the gas storage tank 63 through the exhaust valve 62 for heat preservation and storage. The pressure in the gas storage tank 63 is monitored by the pressure gauge 64 to facilitate timely replenishment of clean water to the heat exchange tube 61. After one combustion is completed, the staff opens the valve 66, and the high-temperature steam is delivered to the two sets of nozzles 67 through the gas supply pipe 65. The two sets of nozzles 67 spray high-temperature paint to sterilize and disinfect the crushing mechanism 03, the screening mechanism 04 and the sealing cover 12, so as to prevent the residual bacteria in the cavity from overflowing when the staff opens the sealing cover 12.

[0025] The electric motor 21 and the reducer 22 of this utility model are commercially available. Those skilled in the industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A medical waste thermal decomposition treatment apparatus comprising a treatment tank (01); characterized in that, The device further comprises a conveying mechanism (02), a crushing mechanism (03), a screening mechanism (04), a burning mechanism (05) and a sterilizing mechanism (06), the conveying mechanism (02) is installed on the treatment box (01) and conveys the waste, the crushing mechanism (03) is installed on the conveying mechanism (02) and crushes the waste, the screening mechanism (04) is installed on the crushing mechanism (03) and screens the waste, the burning mechanism (05) is installed on the treatment box (01) and thermally decomposes the waste, and the sterilizing mechanism (06) is installed on the treatment box (01) and sterilizes the device by high-temperature steam.

2. The medical waste thermal dissociation treatment apparatus as claimed in claim 1, wherein The treatment box (01) comprises a box body (11), a sealing cover (12), a lock buckle (13), a collection box (14), a filter plate (15) and a chimney (16), the bottom end of the box body (11) is connected with the ground, the inside of the box body (11) is provided with a cavity, the sealing cover (12) is rotatably installed in the cavity of the box body (11), the lock buckle (13) is installed on the sealing cover (12), the collection box (14) is slidably installed in the cavity of the box body (11), the filter plate (15) is installed in the cavity of the box body (11), and the bottom end of the chimney (16) is in communication with the inside of the top end of the box body (11).

3. The medical waste thermal dissociation treatment apparatus as claimed in claim 2, wherein The conveying mechanism (02) comprises a motor (21), a speed reducer (22), two groups of conveying rollers (23) and a fireproof conveying belt (24), the motor (21) is installed on the box body (11), the output end of the motor (21) is connected with the input end of the speed reducer (22), the two groups of conveying rollers (23) are rotatably installed in the cavity of the box body (11), and the input end of one group of the conveying rollers (23) is connected with the output end of the speed reducer (22), and the fireproof conveying belt (24) is tautly installed between the two groups of conveying rollers (23).

4. The medical waste thermal dissociation treatment apparatus as claimed in claim 3, wherein The crushing mechanism (03) comprises a transmission shaft (31), three groups of crushing rollers (32), a plurality of first belt pulleys (33), a plurality of first belts (34) and a plurality of cutting knives (35), the transmission shaft (31) is installed on the speed reducer (22), the three groups of crushing rollers (32) are rotatably installed in the cavity of the box body (11), the plurality of first belt pulleys (33) are respectively installed on the transmission shaft (31) and the three groups of crushing rollers (32), the plurality of first belts (34) are transmissionally installed between adjacent two groups of the first belt pulleys (33), and the plurality of cutting knives (35) are respectively installed on the three groups of crushing rollers (32).

5. The medical waste thermal dissociation treatment apparatus as claimed in claim 4, wherein The screening mechanism (04) comprises a screen (41), a vibrating roller (42), two groups of protrusions (43), two groups of second belt pulleys (44) and a second belt (45), the screen (41) is installed in the cavity of the box body (11) and below the plurality of cutting knives (35), the vibrating roller (42) is rotatably installed in the cavity of the box body (11), the two groups of protrusions (43) are installed on the vibrating roller (42), the two groups of second belt pulleys (44) are respectively installed on the crushing rollers (32) and the vibrating roller (42), and the second belt (45) is tautly installed between the two groups of second belt pulleys (44).

6. The medical waste thermal dissociation treatment apparatus as claimed in claim 2, wherein The incineration mechanism (05) comprises a gas delivery hose (51) in communication with a gas pipeline and a plurality of ignition nozzles (52) each installed in the cavity of the box body (11) and in internal communication with the gas delivery hose (51).

7. The medical waste thermal dissociation treatment apparatus as claimed in claim 2, wherein The sterilization mechanism (06) comprises a heat exchange pipe (61) installed in the cavity of the box body (11), an exhaust valve (62) installed on the heat exchange pipe (61), a gas storage tank (63) installed on the box body (11) and in internal communication with the exhaust port of the exhaust valve (62), a pressure gauge (64) installed on the gas storage tank (63), a gas delivery pipe (65) installed on the box body (11) and in internal communication with the gas storage tank (63), a valve (66) installed on the gas delivery pipe (65), and two groups of spray heads (67) each installed in the cavity of the box body (11) and in internal communication with the gas delivery pipe (65).

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