CN108662589A - Infectious Biohazard Waste processing system - Google Patents

Abstract

The invention belongs to the technical field of garbage treatment equipment, and particularly relates to an infectious medical waste treatment system, which includes a disinfection tank, a crushing tower, a combustion chamber and an exhaust gas purification room connected in sequence, and the top of the disinfection tank is respectively provided with a feed port, a thermometer and Pressure gauge, the bottom of the disinfection tank is connected to the top of the crushing tower through the feed pipe, the bottom of the outer wall of the crushing tower is connected to the top of the combustion chamber through the transportation pipeline, a fan is installed on the outer wall of the crushing tower and the side opposite to the nozzle of the transportation pipeline, and the combustion chamber is horizontally A filter screen is provided, an ash outlet is provided at the lower end of the outer wall of the combustion chamber, and the top of the combustion chamber communicates with the top of the waste gas purification chamber through an exhaust pipe. The treatment system of the present invention performs high-temperature and high-pressure sterilization, drying, physical crushing, and high-temperature combustion on infectious medical waste in sequence, and the exhaust gas after combustion is purified and then discharged into the atmosphere. The whole process will not produce toxic pollutants. Protect the public environment.

Description

Infectious medical waste treatment system

technical field

The invention belongs to the technical field of waste treatment equipment, in particular to an infectious medical waste treatment system.

Background technique

Medical waste refers to directly or indirectly infectious, toxic and other hazardous waste produced by medical and health institutions in the course of medical treatment, prevention, health care and other related activities. Medical waste is divided into five categories and included in the "National Hazardous Waste List": (1) Infectious waste refers to medical waste carrying pathogenic microorganisms that may cause the spread of infectious diseases, including waste contaminated by blood, body fluids, and excrement of patients (2) Pathological waste refers to human waste generated during the diagnosis and treatment process and medical experiment animal corpses, including discarded human tissues generated during surgery and discarded after pathological sections (3) Injury waste refers to discarded medical sharps that can stab or cut the human body, including medical needles, scalpels, scalpels, glass test tubes, etc. (4) Drug-related waste Waste refers to expired, obsolete, deteriorated or contaminated discarded drugs, including discarded general drugs, discarded cytotoxic drugs and genotoxic drugs, etc. (5) Chemical waste refers to toxic, corrosive, flammable Explosive waste chemicals, such as waste chemical reagents, chemical disinfectants, mercury sphygmomanometers, mercury thermometers, etc. Among them, the treatment of infectious medical waste is the top priority.

Infectious medical waste carries pathogenic microorganisms that are infectious or spread dangerous diseases. At present, most of the treatment methods are direct incineration or landfill. Because the waste may contain liquid form, the effect of direct incineration may not be ideal; direct landfill The required degradation time is too long.

Contents of the invention

The treatment system of the present invention performs high-temperature and high-pressure sterilization, drying, physical crushing, and high-temperature combustion on infectious medical waste in sequence, and the waste gas after combustion is purified and then discharged into the atmosphere. The whole process will not produce toxic pollutants. Protect the public environment.

The invention provides an infectious medical waste treatment system, which includes a disinfection tank, a crushing tower, a combustion chamber and an exhaust gas purification room connected in sequence, and the top of the disinfection tank is respectively provided with a feed inlet, a thermometer and a pressure gauge. A pair of protrusions are symmetrically arranged on the upper end of the inner wall of the disinfection tank, and a "V"-shaped net is hung between the pair of protrusions, and the two mesh pieces of the "V"-shaped net are hinged at the bottom, and the inner wall of the disinfection tank A heating rod is arranged symmetrically in the middle, and the bottom of the sterilizing tank communicates with the top of the pulverizing tower through a feed pipeline, and a first control valve is provided at the end of the feeding pipeline close to the bottom of the sterilizing tank. . A waste water pipeline is communicated between the first control valve and the disinfection tank, and a second control valve is installed at one end of the waste water pipeline close to the feed pipeline;

The upper end of the outer wall of the pulverization tower is provided with a support block, and a motor is installed on the support block, and a pulverizer is arranged on the motor, and the pulverizer passes through the pulverization tower and extends to the inside of the pulverization tower, so The bottom of the outer wall of the crushing tower communicates with the top of the combustion chamber through a transportation pipeline, and a fan is provided on the outer wall of the crushing tower and on the side opposite to the mouth of the transportation pipeline;

A filter screen is arranged horizontally inside the combustion chamber, and an ash outlet is provided at the lower end of the outer wall of the combustion chamber. To the bottom of the exhaust gas purification chamber, the top of the exhaust gas purification chamber is provided with an air outlet.

Preferably, a first brace is provided at the bottom of the crushing tower below the fan.

Preferably, the bottom of the combustion chamber and the end opposite to the ash outlet are provided with a second brace.

Preferably, an air monitor is installed at the outlet of the exhaust gas purification chamber.

Preferably, in the exhaust pipe, at the end close to the combustion chamber, there are heat insulation boards staggered up and down, and the activated carbon adsorbent is attached to the heat insulation boards.

Compared with prior art, the beneficial effect of the present invention:

The treatment system of the present invention performs high-temperature and high-pressure sterilization, drying, physical crushing, and high-temperature combustion on infectious medical waste in sequence, and the waste gas after combustion is purified and then discharged into the atmosphere. The whole process will not produce toxic pollutants. Protect the public environment; the "V" shaped net facilitates more thorough high-temperature and high-pressure disinfection of medical waste suspended in the air. The hinged design is convenient for dumping after disinfection. The fan provides sufficient oxygen and blows the crushed medical waste into the combustion chamber. The transportation pipeline is horizontal Horizontal setting is beneficial to control the combustion feed rate; the first diagonal brace and the second diagonal brace are conducive to guiding the direction of medical waste; the heat shield reduces the loss of heat in the combustion chamber and saves energy, and the activated carbon adsorbent can purify the solid particles in the combustion exhaust gas .

Description of drawings

Fig. 1 is a schematic diagram of the infectious medical waste treatment system of the present invention.

Explanation of reference signs:

1-sterilization tank, 11-feed inlet, 12-thermometer, 13-pressure gauge, 14-heating rod, 15-waste water pipe, 2-crushing tower, 21-feed pipe, 22-transport pipe, 23-fan, 3-combustion chamber, 31-filter screen, 4-exhaust gas purification chamber, 5-"V" shaped screen, 6-motor, 61-crusher, 7-exhaust pipe, 71-heat shield, 8-air monitor .

Detailed ways

A specific embodiment of the present invention will be described in detail below with reference to FIG. 1 , but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

As shown in Figure 1, an infectious medical waste treatment system includes a disinfection tank 1, a crushing tower 2, a combustion chamber 3, and an exhaust gas purification chamber 4 connected in sequence, and the infectious medical waste is sterilized by high temperature and high pressure in sequence , drying, physical crushing, high-temperature combustion, and the exhaust gas after combustion is purified before being discharged into the atmosphere. The whole process will not produce toxic pollutants and protect the public environment. The top of the disinfection tank 1 is provided with a feed inlet 11, a thermometer 12 and a pressure gauge 13 respectively. A pair of protrusions are arranged symmetrically on the upper end of the inner wall of the disinfection tank 1, and a "V"-shaped net 5 is connected between the pair of protrusions, and "V" The two meshes of the "shaped net are hinged at the bottom, and the "V" shaped net 5 facilitates more thorough high-temperature and high-pressure disinfection of medical waste suspended in the air. The bottom of the disinfection tank 1 is connected to the top of the crushing tower 2 through the feed pipeline 21, and the end of the feed pipeline 21 near the bottom of the disinfection tank 1 is provided with a first control valve, on the feed pipeline 21, between the first control valve and the disinfection tank 1 Connected with a waste water pipeline 15, the end of the waste water pipeline 15 near the feed pipeline 21 is equipped with a second control valve;

The upper end of the crushing tower 2 outer wall is provided with a support block, and a motor 6 is installed on the support block. The top of the combustion chamber 3 is communicated with the transport pipe 22. On the outer wall of the pulverization tower 2, a fan 23 is provided on the side opposite to the mouth of the transport pipe 22. The fan 23 blows the crushed medical waste into the combustion chamber 3 while providing sufficient oxygen. , the bottom of the crushing tower 2 is provided with a first diagonal brace below the fan 23, so that the crushed medical waste can be collected in the combustion chamber 3;

A filter screen 31 is horizontally arranged inside the combustion chamber 3 to provide a landing point for the medical waste to be burned, and the combustion is more complete. Two diagonal braces, the burned ashes are conveniently concentrated to the ash outlet, the top of the combustion chamber 3 is connected to the top of the exhaust gas purification chamber 4 through the exhaust pipe 7, and the end of the exhaust pipe 7 near the combustion chamber 3 is staggered up and down with heat insulation plate 71, and activated carbon adsorbent is attached to the heat shield 71, the heat shield 71 reduces the loss of heat in the combustion chamber 3, saves energy, the activated carbon adsorbent can purify the solid particles in the combustion exhaust gas, and the mouth of the exhaust pipe 7 extends To the bottom of the exhaust gas purification chamber 4, and the exhaust gas purification chamber 4 is equipped with solutions for absorbing carbon monoxide, nitrogen monoxide, dust, etc. An air monitor 8 is installed at the air outlet of the chamber 4, and the waste gas is discharged into the atmosphere after being purified up to the standard, so as to avoid polluting the environment.

The working principle of the present invention is as follows:

Close the first control valve and the second control valve, pour an appropriate amount of water into the disinfection tank 1, and pour infectious medical waste from the feed port 11 of the disinfection tank 1, and place it on the "V" shaped net 5, at 120 °C, Disinfect under high temperature and high pressure at 105KPa; open the second control valve to discharge the waste water, use the heating rod 14 to dry the infectious medical waste, open the first control valve, dump the medical waste on the "V" shaped net 5, and start the motor 6 The medical waste is crushed to a small section with a particle size of less than 10cm, and the crushed section is sent to the filter screen of the combustion chamber 3 by the fan 23 for combustion. into the atmosphere.

It should be noted that, in order to avoid redundant description, the present invention describes preferred embodiments, but those skilled in the art can make additional changes and modifications to the embodiments once they understand the basic inventive concepts. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (5)

1. A treatment system for infectious medical waste, characterized in that it comprises a disinfection tank (1), a crushing tower (2), a combustion chamber (3) and an exhaust gas cleaning chamber (4) connected in sequence, and the disinfection tank ( 1) The top is respectively provided with a feed inlet (11), a thermometer (12) and a pressure gauge (13), and a pair of protrusions are arranged symmetrically on the upper end of the inner wall of the disinfection tank (1), and a pair of protrusions are connected between them. There is a "V"-shaped net (5), and the two meshes of the "V"-shaped net are hinged at the bottom, and a heating rod (14) is symmetrically arranged in the middle of the inner wall of the disinfection tank (1), and the disinfection tank ( 1) The bottom is in communication with the top of the pulverizing tower (2) through a feed pipeline (21), and the end of the feed pipeline (21) near the bottom of the disinfection tank (1) is provided with a first control valve, and the feed pipeline (21) is provided with a first control valve. On the feed pipe (21), a waste water pipe (15) is communicated between the first control valve and the disinfection tank (1), and the waste water pipe (15) is installed near one end of the feed pipe (21) There is a second control valve; The upper end of the outer wall of the crushing tower (2) is provided with a support block, a motor (6) is installed on the support block, a pulverizer (61) is arranged on the motor (6), and the pulverizer (61) wears Pass through the crushing tower (2) and extend to the inside of the crushing tower (2), the bottom of the outer wall of the crushing tower (2) communicates with the top of the combustion chamber (3) through a transport pipeline (22), the crushing tower (2) On the outer wall, a fan (23) is arranged on the side opposite to the mouth of the transportation pipeline (22); The interior of the combustion chamber (3) is horizontally provided with a filter screen (31), the lower end of the outer wall of the combustion chamber (3) is provided with an ash outlet, and the top of the combustion chamber (3) is connected to the top of the waste gas purification chamber (4). It communicates with the exhaust pipe (7), the nozzle of the exhaust pipe (7) extends to the bottom of the waste gas purification chamber (4), and the top of the waste gas purification chamber (4) is provided with an air outlet. 2. The infectious medical waste treatment system according to claim 1, characterized in that a first diagonal brace is provided at the bottom of the crushing tower (2) and below the fan (23). 3. The infectious medical waste treatment system according to claim 1, characterized in that a second brace is provided at the bottom of the combustion chamber (3) and at the end opposite to the ash outlet. 4. The infectious medical waste treatment system according to claim 1, characterized in that an air monitor (8) is installed at the air outlet of the exhaust gas cleaning chamber (4). 5. The infectious medical waste treatment system according to claim 1, characterized in that, in the exhaust pipe (7), one end close to the combustion chamber (3) is staggered up and down with heat shields (71 ), and activated carbon adsorbent is attached on the heat shield (71).