CN111706870A - Hazardous waste treatment method - Google Patents
Hazardous waste treatment method Download PDFInfo
- Publication number
- CN111706870A CN111706870A CN202010622866.1A CN202010622866A CN111706870A CN 111706870 A CN111706870 A CN 111706870A CN 202010622866 A CN202010622866 A CN 202010622866A CN 111706870 A CN111706870 A CN 111706870A
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- Prior art keywords
- combustion furnace
- waste
- fixedly connected
- water
- discharging
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/08—Liquid slag removal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2205/00—Waste feed arrangements
- F23G2205/12—Waste feed arrangements using conveyors
- F23G2205/121—Screw conveyor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
- F23J2700/003—Ash removal means for incinerators
Abstract
The invention relates to a hazardous waste treatment method, which comprises the following steps: putting the dangerous waste to be treated into the bottom of the spiral conveyor; then conveying the waste into a feed port at the top of the combustion furnace by using a screw conveyor to enter the combustion furnace; injecting fuel gas from an air inlet, igniting to burn waste, discharging waste gas from an exhaust pipe at the top, filtering the waste gas in the exhaust pipe by a filter element in a filter box, and then discharging the waste gas out of the equipment; after the waste in the combustion furnace is fully combusted, injecting water into the combustion furnace from the water inlet to mix the water with the combusted products; and finally, discharging the water and the products after combustion into a sedimentation tank through a discharge pipe, settling for a long time to ensure that the solid waste is settled, discharging the water, and fishing out the solid waste to finish the whole treatment process. The invention protects the natural environment, the influence of the filtered gas on the environment is small, and the high-efficiency treatment of the hazardous waste is realized.
Description
Technical Field
The invention relates to the technical field of hazardous waste treatment, in particular to a hazardous waste treatment method.
Background
With the development of industry, the discharge of dangerous waste in industrial production process is increasing. It is estimated that the worldwide annual production of hazardous waste is 3.3 million tons. Because of the serious pollution and potentially serious impact of hazardous waste, which has been called "political waste" in industrially developed countries, the public is very sensitive to the problem of hazardous waste, against setting up hazardous waste disposal sites in areas where they live, and with the high cost of hazardous waste disposal, some companies are trying to move the hazardous waste to industrial undeveloped countries and regions in a strong way, and the amount of this out-of-range movement of hazardous waste is somewhat countless, but obviously growing. According to green and peace-of-organization surveys, developed countries are transporting hazardous waste to developing countries on a scale of 5000 million tons per year, and developed countries have transferred a total of 1.63 million tons of hazardous waste to developing countries and eastern european countries from 1986 to 1992. The transshipment of hazardous waste to developing countries and even global environments has considerable harm. First, the input of hazardous wastes inevitably causes damage to the local ecological environment and the health of the population, since the input countries of wastes are basically short of technical means and economic abilities to treat and dispose of hazardous wastes.
The gas discharged by the conventional hazardous waste treatment method is dangerous to people, and the burnt waste is insufficient and is directly discharged out of equipment, so that the environment is damaged to a certain extent.
Disclosure of Invention
The present invention is directed to a hazardous waste treatment method to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme:
a hazardous waste treatment process comprising the steps of:
s1, putting the dangerous waste to be treated into the bottom of the spiral conveyor;
s2, conveying the waste into a feed port at the top of the combustion furnace by a screw conveyor to enter the combustion furnace;
s3, injecting fuel gas from the air inlet, igniting the fuel gas to burn the waste, discharging the waste gas from the exhaust pipe at the top, filtering the waste gas in the exhaust pipe by the filter element in the filter box, and then discharging the waste gas out of the equipment;
s4, when the waste in the combustion furnace is fully combusted, injecting water into the combustion furnace from the water inlet to mix the water with the combustion products;
s5, discharging the final water and the products after combustion into a sedimentation tank through a discharge pipe, settling for a long time to make the solid waste sink, discharging the water, and fishing out the solid waste to finish the whole treatment process.
The hazardous waste treatment equipment used by the hazardous waste treatment method comprises the ground and a combustion furnace, wherein the top of the left side of the combustion furnace is provided with a feed inlet, the left side of the feed inlet is provided with a screw conveyor, the lower half part of the left side of the combustion furnace is fixedly connected with an air inlet, the front side of the top of the combustion furnace is fixedly connected with a water inlet, the top of the combustion furnace is fixedly connected with an exhaust pipe, the left side of the top of the combustion furnace is fixedly connected with an air compressor, the right side of the air compressor is fixedly connected with an air inlet pipe, the other end of the air inlet pipe is fixedly connected with the top of the combustion furnace and communicated with the interior of the combustion furnace, the right side of the combustion furnace is provided with a filter box, four groups of filter elements are arranged in the filter box, the right end of, an air outlet pipe is fixedly connected between the left end of the air pump and the right end of the filter box, a pipeline at the top of the air pump is connected with the outside, a discharge pipe is fixedly connected with the bottom of the right side of the combustion furnace, an electromagnetic valve is fixedly connected with the middle part of the discharge pipe, a sedimentation tank is arranged below the ground below the right end of the discharge pipe, and the right end of the discharge pipe extends to the inside of the sedimentation tank; the combustion furnace is fixedly connected with the ground through four supporting legs at the bottom of the combustion furnace; the included angle between screw conveyer and the ground is 45 degrees, screw conveyer's bottom is through two spinal branch vaulting poles and ground fixed connection.
Preferably, one end of the exhaust pipe is divided into two ends which are respectively connected with the top of the combustion furnace and above the feed inlet on the left side of the combustion furnace; the right side of the bottom of the inner wall of the sedimentation tank is lower.
Preferably, the top of the sedimentation tank is fixedly connected with a cover plate on the ground surface, one end of the cover plate is hinged with the ground, and the right side of the upper surface of the cover plate is fixedly connected with a handle.
The invention provides a hazardous waste treatment method. The method has the following beneficial effects:
(1) according to the invention, the dangerous waste to be treated is placed at the bottom of the screw conveyor, then the screw conveyor conveys the waste into the feeding port at the top of the combustion furnace and enters the combustion furnace, so that the feeding process is simplified, a large amount of waste does not need to be manually placed into the combustion furnace, fuel gas is injected from the gas inlet, then the waste is ignited to be subjected to combustion treatment, the waste gas is discharged from the exhaust pipe at the top, the waste gas in the exhaust pipe is filtered by the filter element in the filter box and then discharged out of the equipment, so that the natural environment is protected, and the filtered gas has little influence on the environment.
(2) According to the invention, after the waste in the combustion furnace is fully combusted, water is injected into the combustion furnace from the water inlet to mix water with the combusted product, finally the water and the combusted product are discharged into the sedimentation tank through the discharge pipe, then the solid waste is settled after long-time sedimentation, the water is discharged, and the combusted product is subjected to secondary treatment, so that the natural environment is protected.
(3) According to the invention, the cover plate is arranged at the top of the sedimentation tank, so that people can conveniently check the sedimentation condition in the sedimentation tank, and can conveniently salvage the waste in the sedimentation tank, thereby facilitating the use of people.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the present invention A;
fig. 3 is a top view of the cover plate of the present invention.
In the figure: 1 ground, 2 combustion furnaces, 201 feed inlets, 3 screw conveyors, 4 support rods, 5 support legs, 6 air inlets, 7 water inlets, 8 exhaust pipes, 9 air compressors, 10 air inlet pipes, 11 filter boxes, 12 filter elements, 13 pressure pumps, 14 air suction pumps, 15 air outlet pipes, 16 discharge pipes, 17 sedimentation tanks, 18 electromagnetic valves and 19 cover plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-3, the present invention provides a technical solution:
a hazardous waste treatment process comprising the steps of:
s1, putting the dangerous waste to be treated into the bottom of the spiral conveyor 3;
s2, conveying the waste into a feed inlet 201 at the top of the combustion furnace 2 by the screw conveyor 3 and then entering the combustion furnace 2;
s3, injecting fuel gas from the gas inlet 6, igniting the fuel gas to burn the waste, discharging the waste gas from the exhaust pipe 8 at the top, filtering the waste gas in the exhaust pipe 8 by the filter element 12 in the filter box 11, and then discharging the waste gas out of the equipment;
s4, when the waste in the combustion furnace 2 is fully combusted, injecting water into the combustion furnace 2 from the water inlet 7 to mix the water with the combustion products;
s5, discharging the final water and the products after combustion into a sedimentation tank 17 through a discharge pipe 16, settling for a long time to allow the solid waste to settle, discharging the water, and fishing out the solid waste to complete the whole treatment process;
the hazardous waste treatment equipment used by the hazardous waste treatment method comprises a ground 1 and a combustion furnace 2, wherein the combustion furnace 2 is fixedly connected with the ground 1 through four supporting legs 5 at the bottom of the combustion furnace 2, a feed inlet 201 is formed in the top of the left side of the combustion furnace 2, a screw conveyor 3 is arranged on the left side of the feed inlet 201, the included angle between the screw conveyor 3 and the ground 1 is 45 degrees, the bottom of the screw conveyor 3 is fixedly connected with the ground 1 through two supporting rods 4, an air inlet 6 is fixedly connected to the lower half part of the left side of the combustion furnace 2 of the screw conveyor 3, a water inlet 7 is fixedly connected to the front side of the top of the combustion furnace 2, an exhaust pipe 8 is fixedly connected to the top of the combustion furnace 2, one end of the exhaust pipe 8 is divided into two ends and is respectively connected with the top of, an air inlet pipe 10 is fixedly connected to the right side of the air compressor 9, the other end of the air inlet pipe 10 is fixedly connected with the top of the combustion furnace 2 and is communicated with the interior of the combustion furnace 2, a filter box 11 is arranged on the right side of the combustion furnace 2, four filter elements 12 are arranged in the filter box 11, hazardous waste to be treated is placed at the bottom of the screw conveyor 3, then the screw conveyor 3 conveys the waste into a feed inlet 201 at the top of the combustion furnace 2 to enter the combustion furnace 2, so that the feeding process is simplified, a large amount of waste does not need to be manually placed in the combustion furnace 2, fuel gas is injected from an air inlet 6, then the waste is ignited to be subjected to combustion treatment, and the waste gas is discharged from an exhaust pipe 8 at the top, the waste gas in the exhaust pipe 8 is filtered by the filter elements 12 in the filter box 11 and then discharged out of the equipment, so that the, the right end of the exhaust pipe 8 is fixedly connected with the left side of the filter box 11 through a pressure pump 13, the right end of the filter box 11 is fixedly connected with an air pump 14 through a connecting block, an air outlet pipe 15 is fixedly connected between the left end of the air pump 14 and the right end of the filter box 11, a pipeline at the top of the air pump 14 is connected with the outside, a discharge pipe 16 is fixedly connected with the bottom of the right side of the combustion furnace 2, an electromagnetic valve 18 is fixedly connected with the middle part of the discharge pipe 16, a sedimentation tank 17 is arranged below the right end of the discharge pipe 16 below the ground 1, the right side of the bottom of the inner wall of the sedimentation tank 17 is lower, the right end of the discharge pipe 16 extends into the sedimentation tank 17, a cover plate 19 is fixedly connected with the top of the sedimentation tank 17 on the ground 1, one end of the cover plate 19 is hinged with the ground 1, a handle is fixedly connected with, let the water mix with the result after the burning, the result after final water and the burning passes through discharging pipe 16 and arranges to sedimentation tank 17 in, then through long-time sediment, let solid waste material sink the end, discharge water again, the result after the burning has carried out secondary treatment, thereby natural environment has been protected, top through at sedimentation tank 17 sets up apron 19, thereby can make things convenient for people to inspect the sediment condition in sedimentation tank 17, and make things convenient for people to salvage the discarded object in the sedimentation tank, make things convenient for people to use.
Above-mentioned dangerous waste treatment equipment is when using, the bottom of screw conveyer is put into to the dangerous waste that will need to handle, then screw conveyer carries the waste into in the feed inlet that fires burning furnace top with burning furnace, pour into the gas from the air inlet, then light and carry out combustion processing to the discarded object, and waste gas is discharged from the blast pipe at top, waste gas in the blast pipe filters through the inside filter core of filter box, then outside discharge apparatus, after the burning of the discarded object in the burning furnace is abundant, from water inlet toward burning furnace water injection, let water mix with the result after the burning, water and the result after the burning pass through the discharging tube and discharge to the sedimentation tank in at last, then through long-time deposit, let solid waste material bottom, again discharge water, at last take out solid waste material and can accomplish whole processing procedure.
In conclusion, the invention simplifies the feeding process by putting the dangerous waste to be treated at the bottom of the screw conveyor 3, then the screw conveyor 3 conveys the waste into the feeding hole 201 at the top of the combustion furnace 2 to enter the combustion furnace 2, without manually putting a large amount of waste into the combustion furnace 2, injecting gas from the gas inlet 6, then igniting the waste to be combusted, discharging the waste gas from the exhaust pipe 8 at the top, filtering the waste gas in the exhaust pipe 8 by the filter element 12 in the filter box 11, then discharging the waste gas out of the equipment, thereby protecting the natural environment, having little influence on the environment by the filtered gas, injecting water into the combustion furnace 2 from the water inlet 7 after the waste in the combustion furnace 2 is fully combusted, mixing the water with the combusted product, and finally discharging the water and the combusted product into the sedimentation tank 17 through the discharge pipe 16, the solid waste is settled for a long time, then the water is discharged, and the products after combustion are subjected to secondary treatment, so that the natural environment is protected.
Claims (3)
1. A hazardous waste treatment method, characterized in that: the method comprises the following steps:
s1, putting the dangerous waste to be treated into the bottom of the spiral conveyor (3);
s2, conveying the waste into a feed inlet (201) at the top of the combustion furnace (2) by the screw conveyor (3) and then entering the combustion furnace (2);
s3, injecting fuel gas from the gas inlet (6), igniting to burn the waste, discharging the waste gas from the exhaust pipe (8) at the top, filtering the waste gas in the exhaust pipe (8) by the filter element (12) in the filter box (11), and then discharging the waste gas outside the equipment;
s4, when the waste in the combustion furnace (2) is fully combusted, injecting water into the combustion furnace (2) from the water inlet (7) to mix the water with the combustion products;
s5, discharging the final water and the products after combustion into a sedimentation tank (17) through a discharge pipe (16), settling for a long time to allow the solid waste to settle, discharging the water, and fishing out the solid waste to finish the whole treatment process;
the hazardous waste treatment equipment used by the hazardous waste treatment method comprises a ground (1) and a combustion furnace (2), wherein the top of the left side of the combustion furnace (2) is provided with a feed inlet (201), the left side of the feed inlet (201) is provided with a screw conveyor (3), the screw conveyor (3) is fixedly connected with an air inlet (6) at the lower half part of the left side of the combustion furnace (2), the front side of the top of the combustion furnace (2) is fixedly connected with a water inlet (7), the top of the combustion furnace (2) is fixedly connected with an exhaust pipe (8), the left side of the top of the combustion furnace (2) is fixedly connected with an air compressor (9), the right side of the air compressor (9) is fixedly connected with an air inlet pipe (10), the other end of the air inlet pipe (10) is fixedly connected with the top, the right side of the combustion furnace (2) is provided with a filter box (11), four groups of filter elements (12) are arranged inside the filter box (11), the right end of the exhaust pipe (8) is fixedly connected with the left side of the filter box (11) through a pressure pump (13), the right end of the filter box (11) is fixedly connected with an air suction pump (14) through a connecting block, an air outlet pipe (15) is fixedly connected between the left end of the air suction pump (14) and the right end of the filter box (11), a pipeline at the top of the air suction pump (14) is connected with the outside, the bottom of the right side of the combustion furnace (2) is fixedly connected with a discharge pipe (16), the middle of the discharge pipe (16) is fixedly connected with an electromagnetic valve (18), a sedimentation tank (17) is arranged below the ground (1) below the right end of the discharge pipe (16), and the right end of the discharge pipe (16; the combustion furnace (2) is fixedly connected with the ground (1) through four supporting legs (5) at the bottom of the combustion furnace; the included angle between the spiral conveyor (3) and the ground (1) is 45 degrees, and the bottom of the spiral conveyor (3) is fixedly connected with the ground (1) through two support rods (4).
2. A hazardous waste treatment method according to claim 1, wherein: one end of the exhaust pipe (8) is divided into two ends and is respectively arranged above the top of the combustion furnace (2) and the feed inlet (201) on the left side of the combustion furnace (2); the right side of the bottom of the inner wall of the sedimentation tank (17) is lower.
3. A hazardous waste treatment method according to claim 1, wherein: the top of sedimentation tank (17) is at fixed surface's apron (19) on ground (1), the one end and ground (1) of apron (19) are articulated, the right side fixedly connected with handle of apron (19) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010622866.1A CN111706870A (en) | 2020-06-30 | 2020-06-30 | Hazardous waste treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010622866.1A CN111706870A (en) | 2020-06-30 | 2020-06-30 | Hazardous waste treatment method |
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| Publication Number | Publication Date |
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| CN111706870A true CN111706870A (en) | 2020-09-25 |
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ID=72545577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010622866.1A Withdrawn CN111706870A (en) | 2020-06-30 | 2020-06-30 | Hazardous waste treatment method |
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| CN (1) | CN111706870A (en) |
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| CN201246756Y (en) * | 2008-07-25 | 2009-05-27 | 徐国保 | Energy-saving environment protection industry boiler dust collector |
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Application publication date: 20200925 |
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