CN112503532A - Cracking device for waste salt containing organic pollution - Google Patents
Cracking device for waste salt containing organic pollution Download PDFInfo
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- CN112503532A CN112503532A CN202011407938.7A CN202011407938A CN112503532A CN 112503532 A CN112503532 A CN 112503532A CN 202011407938 A CN202011407938 A CN 202011407938A CN 112503532 A CN112503532 A CN 112503532A
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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
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
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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
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
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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
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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
Abstract
The invention relates to a cracking device for waste salt containing organic pollutant pollution, which comprises a primary cracking furnace and a secondary cracking furnace, wherein the primary cracking furnace is obliquely arranged and comprises a primary feeding device, a primary cracking furnace body, a first hot air blower and a primary discharging device; the second-stage cracking furnace comprises a second-stage feeding device, a second-stage cracking furnace body, a second air heater and a second-stage discharging device, wherein one end of the second-stage cracking furnace body is connected with the second-stage feeding device, and the other end of the second-stage cracking furnace body is respectively connected with the second-stage discharging device and the second air heater; the primary discharging device is connected with the secondary feeding device; the device provided by the invention can be used for cracking the materials for the second time by arranging the primary cracking furnace and the secondary cracking furnace, so that the cracking efficiency of the materials is effectively improved.
Description
Technical Field
The invention belongs to the field of resource utilization of waste salt hazardous wastes, and particularly relates to a cracking device for waste salt containing organic pollutant.
Background
In the existing industrial system of China, waste salt is generated in the production process of organic or inorganic chemical products, and the generation amount of the waste salt is huge particularly in the fields of pesticides, medicines and fine chemical industry. For example, in the production process of pesticides, the amount of waste salt byproduct in the whole country is over 500 million tons every year. At present, a lot of enterprises stack waste salt in stock, and the waste salt occupies a large amount of fields, so that the waste salt becomes an important factor for restricting the development of the enterprises. The main component of most industrial waste salt is sodium chloride, and a large amount of organic and inorganic impurities carried by the sodium chloride cannot be continuously used as industrial raw material salt and further cannot be applied to the food or medicine industry, so that distillation and reaction residues generated in the production process of chemical synthesis raw material medicines, waste mother liquor and reaction base waste generated in the production process of the chemical synthesis raw material medicines must be executed according to corresponding legal and legal requirements, and cannot be discharged privately. Therefore, the solution currently used by most plants is to fill them in heaps. This kind of action has very big drawback, and the utilization ratio of king ground can reduce on the one hand, and the place is wasted, and on the other hand can salinize and stop soil when salt runs off rather than impurity, pollutes around, causes very big threat to the environment.
At present, the method for treating organic waste salt at home and abroad mainly comprises technologies such as a salt washing method, a high-temperature treatment method, a high-temperature carbonization method and the like, at present, the method for treating the waste salt is the most common high-temperature treatment method, and organic components are calcined and decomposed by high-temperature hot air, but the method is difficult to completely remove the organic components in the waste salt, most of the organic components are converted into more complex organic components to be remained in the hot air, new pollutants are formed, and high cost is required for treatment. In addition, most of the pyrolysis furnaces for treating waste salt have the problems of high energy consumption, low cracking efficiency and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention discloses a cracking furnace system which is simple in structure, convenient and practical and aims to solve the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a cracking device containing organic pollutant waste salt comprises a first-stage cracking furnace and a second-stage cracking furnace, wherein the first-stage cracking furnace is obliquely arranged and comprises a first-stage feeding device, a first-stage cracking furnace body, a first hot air blower and a first-stage discharging device; the second-stage cracking furnace comprises a second-stage feeding device, a second-stage cracking furnace body, a second air heater and a second-stage discharging device, wherein one end of the second-stage cracking furnace body is connected with the second-stage feeding device, and the other end of the second-stage cracking furnace body is respectively connected with the second-stage discharging device and the second air heater; the primary discharging device is arranged above the secondary feeding device and is connected with the secondary feeding device; the feed inlet of setting on one-level feed arrangement is higher than the discharge gate of setting on one-level discharging device, and the feed inlet of setting on second grade feed arrangement is higher than the discharge gate of setting on second grade discharging device.
The inner side of the first-stage cracking furnace body is sequentially provided with a spiral shovelling plate area, a honeycomb shovelling plate area and a first-stage shovelling plate area along the inclined direction of the first-stage cracking furnace body.
A plurality of spirally arranged spiral shoveling plates are arranged in the spiral shoveling plate area and fixedly connected with the inner side of the furnace body of the primary cracking furnace.
A plurality of shoveling plates are arranged in the honeycomb shoveling plate area and are alternately overlapped or rolled into a honeycomb structure, and the shoveling plates are fixedly connected with the inner side of the furnace body of the primary cracking furnace.
A plurality of L-shaped shovelling plates are arranged in the first-stage shovelling plate area, and the bottom ends of the L-shaped shovelling plates are connected with the furnace body of the first-stage cracking furnace.
The inner side of the second-stage cracking furnace body is sequentially provided with a triangular weir plate area and a second-stage shoveling plate area along the inclination direction of the second-stage cracking furnace body, a plurality of triangular weir plates are arranged in the triangular weir plate area, the triangular weir plates are arranged on the inner side wall of the second-stage cracking furnace body, and the bottom ends of the triangular weir plates are connected with the inner side wall of the second-stage cracking furnace body; a plurality of L-shaped shovelling plates are arranged in the second-stage shovelling plate area, and the bottom ends of the L-shaped shovelling plates are fixedly connected with the inner side of the second-stage cracking furnace body.
The outer sides of the first-stage cracking furnace body and the second-stage cracking furnace body are respectively provided with a front riding wheel, a rear riding wheel and a transmission gear; the first-level feeding device, the first-level discharging device and the first-level cracking furnace body are movably connected, and the second-level feeding device, the second-level discharging device and the second-level cracking furnace body are movably connected.
The primary feeding device and the primary discharging device are respectively provided with a first mounting opening corresponding to the primary cracking furnace body, a rotating part is arranged in the first mounting opening, and two ends of the primary cracking furnace body are respectively provided with a rotating track matched with the rotating part; and a second mounting port corresponding to the second cracking furnace body is formed in the second feeding device and the second discharging device, a rotating part is arranged in the second mounting port, and rotating rails matched with the rotating part are arranged at two ends of the second cracking furnace body.
The included angle between the first-level cracking furnace and the horizontal plane is 1-5 degrees; the bottom surface of the furnace is gradually reduced from the inlet end to the outlet end, and the included angle between the secondary cracking furnace and the horizontal plane is 1-5 degrees. The bottom surface of the filter gradually decreases from the inlet end to the outlet end. The one-level feeding device is arranged at a higher end port (inlet end port) of the one-level cracking furnace, the one-level discharging device is arranged at a lower end port (outlet end port) of the one-level cracking furnace, the second-level feeding device is arranged at a higher end port (inlet end port) of the second-level cracking furnace, and the second-level discharging device is arranged at a lower end port (outlet end port) of the second-level cracking furnace.
The first-stage feeding device and the second-stage feeding device are preferably spiral feeders, the bottom of the second-stage feeding device is provided with a hopper, and the neck of the lower end of the hopper is provided with a valve.
The first-stage discharging device and the second-stage discharging device are preferably discharging machines.
The primary furnace cyclone dust collector is arranged above the primary feeding device, the primary furnace cyclone dust collector is connected with the primary cracking furnace body, and the moisture exhaust fan is connected with the primary furnace cyclone dust collector; the secondary furnace cyclone dust collector is arranged above the secondary feeding device and is connected with the secondary cracking furnace body.
The temperature of the first-stage cracking furnace is continuously raised from the inlet end to the outlet end of the first-stage cracking furnace to 200-400 ℃, and the temperature of the second-stage cracking furnace is continuously raised from the inlet end to the outlet end of the second-stage cracking furnace to 400-650 ℃.
The heaters (the first air heater and the second air heater) of the hot air system adopt fossil fuels, including coal, petroleum and natural gas and the like; the temperature of the primary hot air is 200-400 ℃, and the temperature of the secondary hot air is 400-650 ℃.
Compared with the prior art, the invention has the following beneficial effects because the technology is adopted:
(1) the heating mode of countercurrent hot air is adopted: according to the invention, the first air heater is arranged at the discharge end of the first-stage cracking furnace, the second air heater is arranged at the discharge end of the second-stage cracking furnace, a countercurrent hot air heating mode is adopted, hot air and materials form a convection state in the heating process, so that the hot air can pass through gaps of the materials, the heat can be transferred to the materials through the gaps of the materials, the heating area of the materials is increased, the heat transfer effect is increased, meanwhile, the flowability of the materials can be increased, and the materials can be uniformly and fully contacted with heat energy.
(2) Uniform heating effect: this device is through setting up spiral flight, honeycomb flight and one-level flight in one-level pyrolysis furnace, with the even distribution of material in the pyrolysis furnace for the material can be even abundant contact with heat energy, reach the effect of unanimous intensification.
(3) The heat energy in the material is effectively utilized: in the combustion process of solid materials, a large amount of combustible solid particles can be generated, and secondary pollution is caused to the environment.
(4) The problem of hardening can be solved: in the process, the first-stage cracking furnace and the second-stage cracking furnace are arranged, the materials are firstly subjected to the first-stage cracking furnace, the materials are uniformly and orderly conveyed forwards through the spiral shoveling plates and the honeycomb shoveling plates in the first-stage cracking furnace, and meanwhile, the moisture of the solid wastes is removed.
Drawings
FIG. 1 is a schematic diagram of a cracking apparatus containing organic contaminant waste salt;
FIG. 2 is a schematic structural view of a furnace body of a primary cracking furnace;
FIG. 3 is a schematic structural view of a furnace body of a secondary cracking furnace;
FIG. 4 is a schematic diagram of a structure of a cellular landing zone;
FIG. 5 is a schematic structural diagram of a primary shovelling plate area;
FIG. 6 is a schematic structural view of a triangular weir plate region;
FIG. 7 is a schematic structural diagram of a two-stage shovelling plate zone;
FIG. 8 is a schematic structural diagram of the first mounting port;
FIG. 9 is a schematic view of the structure of the rotating track;
in the figure: 1. the device comprises a primary feeding device, a primary furnace cyclone dust collector, a spiral shoveling plate area, a primary discharging device, a primary air heater, a honeycomb shoveling plate area, a honeycomb feeding device, a honeycomb driving gear, a transmission gear, a primary shoveling plate area, a rear supporting wheel, a primary discharging device, a primary air heater, a secondary feeding device, a secondary furnace cyclone dust collector, a secondary air heater, a secondary cracking furnace body, a secondary discharging device, a secondary air heater, a secondary cracking furnace, a primary cracking furnace 21, a secondary cracking furnace 22, an L-shaped shoveling plate, a secondary cracking furnace body, a secondary shoveling plate area, a secondary cracking furnace 24, a rotating track.
Detailed Description
The invention is further elucidated with reference to the drawings and the detailed description.
Example 1:
the attached drawing shows that the cracking device containing the organic pollutant pollution waste salt comprises a primary cracking furnace 20 and a secondary cracking furnace 21, wherein the primary cracking furnace 20 is obliquely arranged, the secondary cracking furnace 21 is obliquely arranged, the primary cracking furnace 20 comprises a primary feeding device 1, a primary cracking furnace body 15, a first hot air blower 10 and a primary discharging device 9, one end of the primary cracking furnace body 15 is connected with the primary feeding device 1, and the other end of the primary cracking furnace body is respectively connected with the primary discharging device 9 and the first hot air blower 10; the second-stage cracking furnace 21 comprises a second-stage feeding device 11, a second-stage cracking furnace body 17, a second air heater 19 and a second-stage discharging device 18, one end of the second-stage cracking furnace body 17 is connected with the second-stage feeding device 11, and the other end of the second-stage cracking furnace body is respectively connected with the second-stage discharging device 18 and the second air heater 19; the primary discharging device 9 is arranged above the secondary feeding device 11, and the lower end of the primary discharging device 9 is connected with the upper end of the secondary feeding device 11; the feed inlet of the first-level feeding device 1 is higher than the discharge outlet of the first-level discharging device 9, and the feed inlet of the second-level feeding device 11 is higher than the discharge outlet of the second-level discharging device 18.
The inner side of the first-stage cracking furnace body 15 is sequentially provided with a spiral shovelling plate area 3, a honeycomb shovelling plate area 5 and a first-stage shovelling plate area 7 along the inclined direction of the first-stage cracking furnace body 15.
The spiral shoveling plate area 3 is internally provided with a plurality of spiral shoveling plates which are arranged in a spiral mode, the spiral shoveling plates are fixedly connected with the inner side of the first-level cracking furnace body 15, the conveying effect of materials can be improved by arranging the spiral shoveling plate area 3, and the materials are prevented from being accumulated in the furnace body.
The honeycomb shoveling plate area 5 is internally provided with a plurality of shoveling plates which are alternately overlapped or rolled into a honeycomb structure, the shoveling plates are fixedly connected with the inner side of the first-stage cracking furnace body 15, and the material ash backflow in the furnace body can be effectively reduced by arranging the honeycomb shoveling plate area 5.
A plurality of L-shaped shovelling plates 22 are arranged in the first-stage shovelling plate area 7, the bottom ends of the L-shaped shovelling plates 22 are connected with the first-stage cracking furnace body 15, materials can be uniformly distributed in the furnace body better, and cracking efficiency can be improved by arranging the first-stage shovelling plate area 7.
The inner side of the second-stage cracking furnace body 17 is sequentially provided with a triangular weir plate area 23 and a second-stage shovelling plate area 16 along the inclination direction of the second-stage cracking furnace body 17, a plurality of triangular weir plates 13 are arranged in the triangular weir plate area 23, the triangular weir plates 13 are arranged on the inner side wall of the second-stage cracking furnace body 17, the bottom ends of the triangular weir plates 13 are connected with the inner side of the second-stage cracking furnace body 17, and the triangular weir plate area 23 is arranged, so that the material transportation efficiency can be increased, and material dust can be reduced;
a plurality of L-shaped shovelling plates 22 are arranged in the second-stage shovelling plate area 16, the bottom ends of the L-shaped shovelling plates 22 are fixedly connected with the inner side of the second-stage cracking furnace body 17, and materials can be better and uniformly distributed in the furnace body by arranging the second-stage shovelling plate area 16.
The included angle between the primary cracking furnace 20 and the horizontal plane is 1-5 degrees; the included angle between the second-stage cracking furnace 21 and the horizontal plane is 1-5 degrees, the dead weight of materials can be utilized, and the transportation efficiency of the materials is increased.
The primary furnace cyclone dust collector 2, the secondary furnace cyclone dust collector 12 and the moisture exhausting fan 14 are further included, so that the moving efficiency of hot air can be increased, and particles in the hot air can be removed.
The primary furnace cyclone dust collector 2 is arranged above the primary feeding device 1, the primary furnace cyclone dust collector 2 is connected with the primary cracking furnace body 15, and the moisture exhausting fan 14 is connected with the primary furnace cyclone dust collector 2; the secondary furnace cyclone dust collector 12 is arranged above the secondary feeding device 11, and the secondary furnace cyclone dust collector 12 is connected with the secondary cracking furnace body 17.
The first-stage feeding device 1 and the second-stage feeding device 11 are preferably spiral feeders, the bottom of each spiral feeder is provided with a funnel, and the neck at the lower end of each funnel is provided with a valve.
The outer sides of the first-stage cracking furnace body 15 and the second-stage cracking furnace body 17 are respectively provided with a front riding wheel 4, a rear riding wheel 8 and a transmission gear 6; the first-stage feeding device 1, the first-stage discharging device 9 and the first-stage cracking furnace body 15 are movably connected, and the second-stage feeding device 11, the second-stage discharging device 18 and the second-stage cracking furnace body 17 are movably connected.
The primary feeding device 1 and the primary discharging device 9 are respectively provided with a first mounting opening 26 corresponding to the primary cracking furnace body 15, a rotating part 25 is arranged in the first mounting opening 26, and two ends of the primary cracking furnace body 15 are respectively provided with a rotating track 24 matched with the rotating part 25; and a second mounting opening corresponding to the second cracking furnace body 17 is formed in each of the second feeding device 11 and the second discharging device 18, a rotating part 25 is arranged in each second mounting opening, and rotating rails 24 matched with the rotating parts 25 are arranged at two ends of each second cracking furnace body. The rotary track 24 on the first-stage cracking furnace body and the rotary track 24 on the second-stage cracking furnace body have the same structure. The rotating component 25 in the first mounting opening 26 is the same as the rotating component 25 in the second mounting opening.
When using, fix one-level pyrolysis furnace 20, second grade pyrolysis furnace 21 through workshop fixed bolster, block into to one-level pyrolysis furnace 20, on the drive gear 6 of second grade pyrolysis furnace 21 through the chain with on the workshop fixed bolster to can drive one-level pyrolysis furnace body 15, second grade pyrolysis furnace body 17 rotates, block the conveyer belt card on the workshop fixed bolster to preceding riding wheel 4, back riding wheel 8 on, thereby can assist and drive one-level pyrolysis furnace body 15, second grade pyrolysis furnace body 17 rotates. Through rotating, change the transportation frictional force of material on the one hand, improve the transport capacity, on the other hand increases the material evenly distributed degree in the furnace body, reinforcing schizolysis efficiency.
One-level pyrolysis furnace body 15 one end is placed in installing port 26 on one-level feed arrangement 1, the other end is placed in installing port 26 on one-level discharging device 9, 17 one end of second grade pyrolysis furnace body is placed in installing port two on second grade feed arrangement 11, the other end is placed in installing port two on second grade discharging device 18, one-level pyrolysis furnace body 15, 17 both ends of second grade pyrolysis furnace body are equipped with rotation track 24, be equipped with the rotary part 25 with 24 looks adaptations of rotation track in installing port 26 and the installing port two, rotary part 25 rotates in rotation track 24, thereby can effectively improve one-level pyrolysis furnace body 15, the rotatory efficiency of second grade pyrolysis furnace body 17.
The temperature of the first-stage cracking furnace 20 is continuously raised from the inlet end to the outlet end of the first-stage cracking furnace 20 to 200-400 ℃, and the temperature in the second-stage cracking furnace 21 is continuously raised from the inlet end to the outlet end of the second-stage cracking furnace 21 to 400-650 ℃.
The heaters (the first air heater and the second air heater) of the hot air system adopt fossil fuels, including coal, petroleum and natural gas and the like; the temperature of the primary hot air is 200-400 ℃, and the temperature of the secondary hot air is 400-650 ℃.
As shown in figure 1, the device comprises a first-stage cracking furnace 20 and a second-stage cracking furnace 21, wherein an included angle between the first-stage cracking furnace 20 and a horizontal plane is 1-5 degrees, the bottom surface of the first-stage cracking furnace is gradually reduced from an inlet end (A end) to an outlet end (B end), the included angle between the second-stage cracking furnace 21 and the horizontal plane is 1-5 degrees, and the bottom surface of the second-stage cracking furnace is gradually reduced from the inlet end (C end) to the outlet end (D end).
The primary cracking furnace is characterized in that a primary feeding device 1 (a primary furnace spiral feeder) is arranged at a higher end port (an inlet end A section port) of a primary cracking furnace 20, a spiral shoveling plate area 3 is arranged behind a primary furnace cyclone dust collector 2 and is connected with the tail end of the primary feeding device 1 (the primary furnace spiral feeder), a honeycomb shoveling plate area 5 is arranged behind the spiral shoveling plate area 3, a primary shoveling plate area 7 is arranged behind the honeycomb shoveling plate area 5, a primary discharging device 9 is arranged at a B end of the primary cracking furnace 20, a primary furnace hot air system (a first air heater 10) is arranged behind a B end of the primary cracking furnace 20, and hot air enters from the B end.
Second grade feed arrangement 11 sets up (second grade stove spiral feeder) in the higher port department (entry end C section port) of second grade pyrolysis furnace 21, second grade discharging device 18 is in the lower port department (exit end D section port) of second grade pyrolysis furnace 21, second grade feed arrangement 11 (second grade stove spiral feeder) sets up the C end at second grade pyrolysis furnace 21, link to each other with the discharge gate of one-level discharging device 9, triangle weir plate district 23 sets up the C end department at second grade pyrolysis furnace body 17, link to each other with second grade pyrolysis furnace body 17, second grade shoveling plate district 16 sets up behind the triangle weir plate district 23 of furnace body, second grade discharging device 18 sets up the D end department at second grade pyrolysis furnace 21, also is the discharge gate of whole cracking system. The second hot air blower 19 (secondary hot air system) is arranged outside the D end of the secondary cracking furnace 21, and hot air enters from the D end of the secondary cracking furnace 21.
The hazardous waste containing organic pollutant waste salts enters from a primary feeding device 1 of a primary cracking furnace 20, passes through a primary furnace cyclone dust collector 2, passes through a spiral shoveling plate area 3, a honeycomb shoveling plate area 5 and a primary shoveling plate area 7, enters a primary discharging device 9 of the primary cracking furnace 20 for discharging, enters a secondary feeding device 11 of a secondary cracking furnace 21, passes through a secondary furnace cyclone dust collector 12, enters a triangular weir plate area 23 and a secondary shoveling plate area 16, and reaches a discharging system of the whole system. The second-stage hot air system (the second air heater 19) enters from the tail end of the second-stage cracking furnace 21, passes through the whole second-stage cracking furnace 21, enters the first-stage cracking furnace 20 together with hot air of the first-stage hot air system (the first air heater 10), passes through the furnace body of the whole first-stage cracking furnace 20, passes through the first-stage furnace cyclone dust collector 2 and then is discharged by the moisture exhaust fan 14, and the material advancing direction is opposite to the hot air flowing direction to form counter-current heating.
As shown in fig. 1, in this example, a primary furnace cyclone 2 and a secondary furnace cyclone 12 are included, the primary furnace cyclone 2 is disposed immediately above a primary feeding device 1 (primary screw feeder), the material is fed through the primary feeding device 1, the generated dust is removed by the primary furnace cyclone 2, the secondary furnace cyclone 12 is disposed immediately above a secondary feeding device 11 (secondary screw feeder), and the generated dust is removed by the secondary furnace cyclone 12.
As shown in FIG. 1, a moisture exhaust fan 14 is also included in this example, and is disposed in front of the A end of the primary cracking furnace 20 and connected to the primary furnace cyclone 2 for exhausting flue gas from the entire cracking system.
The cracking system of FIG. 1 is used to crack hazardous waste containing organic contaminants such as waste NaCl from a certain pharmaceutical factory. The experimental procedure and effect are shown in the table:
TABLE 1 Experimental procedures and results
As can be seen from Table 1, the TOC content in the waste sodium chloride hazardous waste is reduced from 4683mg/L to 217mg/L, which is reduced by 94.4%.
The present invention can utilize the waste gas produced during the treatment process. In the invention, fossil fuel in the process is skillfully utilized to burn and treat the volatile organic waste gas generated in the burning process. The technology saves the investment and the operation cost of the waste gas treatment device on one hand; on the other hand, the volatile organic waste gas can be used as an organic matter and also can be used as a fuel to provide certain combustion heat. Therefore, the problem of waste gas pollution is solved in the process flow, the design is ingenious, and the innovation is remarkable.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, and equivalents including technical features of the claims, i.e., equivalent modifications within the scope of the present invention.
Claims (10)
1. The utility model provides a cracker that contains organic matter pollution waste salt which characterized in that: the device comprises a first-stage cracking furnace and a second-stage cracking furnace, wherein the first-stage cracking furnace is obliquely arranged and comprises a first-stage feeding device, a first-stage cracking furnace body, a first air heater and a first-stage discharging device; the second-stage cracking furnace comprises a second-stage feeding device, a second-stage cracking furnace body, a second air heater and a second-stage discharging device, wherein one end of the second-stage cracking furnace body is connected with the second-stage feeding device, and the other end of the second-stage cracking furnace body is respectively connected with the second-stage discharging device and the second air heater; the primary discharging device is arranged above the secondary feeding device and is connected with the secondary feeding device; the feed inlet of setting on one-level feed arrangement is higher than the discharge gate of setting on one-level discharging device, and the feed inlet of setting on second grade feed arrangement is higher than the discharge gate of setting on second grade discharging device.
2. The cracking device of claim 1, wherein the cracking device comprises: the inner side of the first-stage cracking furnace body is sequentially provided with a spiral shovelling plate area, a honeycomb shovelling plate area and a first-stage shovelling plate area along the inclined direction of the first-stage cracking furnace body.
3. The cracking device of claim 2, wherein the cracking device comprises: a plurality of spirally arranged spiral shoveling plates are arranged in the spiral shoveling plate area.
4. The cracking device of claim 2, wherein the cracking device comprises: and a plurality of shoveling plates are arranged in the honeycomb shoveling plate area and are alternately overlapped or rolled into a honeycomb structure.
5. The cracking device of claim 2, wherein the cracking device comprises: a plurality of L-shaped shovelling plates are arranged in the first-stage shovelling plate area, and the bottom ends of the L-shaped shovelling plates are connected with the furnace body of the first-stage cracking furnace.
6. The cracking device of claim 1, wherein the cracking device comprises: the inner side of the second-stage cracking furnace body is sequentially provided with a triangular weir plate area and a second-stage shoveling plate area along the inclination direction of the second-stage cracking furnace body, a plurality of triangular weir plates are arranged in the triangular weir plate area, and the bottom ends of the triangular weir plates are connected with the inner side of the second-stage cracking furnace body; a plurality of L-shaped shovelling plates are arranged in the second-stage shovelling plate area, and the bottom ends of the L-shaped shovelling plates are fixedly connected with the inner side of the second-stage cracking furnace body.
7. The cracking device of claim 1, wherein the cracking device comprises: the outer sides of the first-stage cracking furnace body and the second-stage cracking furnace body are respectively provided with a front riding wheel, a rear riding wheel and a transmission gear; the first-level feeding device, the first-level discharging device and the first-level cracking furnace body are movably connected, and the second-level feeding device, the second-level discharging device and the second-level cracking furnace body are movably connected.
8. The cracking device of claim 7, wherein the waste salt containing organic pollutants comprises: the primary feeding device and the primary discharging device are respectively provided with a first mounting opening corresponding to the primary cracking furnace body, a rotating part is arranged in the first mounting opening, and two ends of the primary cracking furnace body are respectively provided with a rotating track matched with the rotating part; and a second mounting port corresponding to the second cracking furnace body is formed in the second feeding device and the second discharging device, a rotating part is arranged in the second mounting port, and rotating rails matched with the rotating part are arranged at two ends of the second cracking furnace body.
9. The cracking device of claim 1, wherein the cracking device comprises: the included angle between the first-level cracking furnace and the horizontal plane is 1-5 degrees; the included angle between the secondary cracking furnace and the horizontal plane is 1-5 degrees.
10. The cracking device of claim 1, wherein the cracking device comprises: the primary furnace cyclone dust collector is arranged above the primary feeding device, the primary furnace cyclone dust collector is connected with the furnace body of the primary cracking furnace, and the moisture exhaust fan is connected with the primary furnace cyclone dust collector; the secondary furnace cyclone dust collector is arranged above the secondary feeding device and is connected with the secondary cracking furnace body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407938.7A CN112503532B (en) | 2020-12-05 | 2020-12-05 | Cracking device for waste salt containing organic pollution |
| PCT/CN2020/134288 WO2022116226A1 (en) | 2020-12-05 | 2020-12-07 | Cracking device for waste salt containing organic pollutants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407938.7A CN112503532B (en) | 2020-12-05 | 2020-12-05 | Cracking device for waste salt containing organic pollution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112503532A true CN112503532A (en) | 2021-03-16 |
| CN112503532B CN112503532B (en) | 2023-04-18 |
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| CN202011407938.7A Active CN112503532B (en) | 2020-12-05 | 2020-12-05 | Cracking device for waste salt containing organic pollution |
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| CN110624938A (en) * | 2019-09-28 | 2019-12-31 | 江苏朗誉环保设备有限公司 | Treatment system for hazardous waste salt production by-products |
| CN110805907A (en) * | 2019-10-16 | 2020-02-18 | 北京航化节能环保技术有限公司 | Process and device for treating solid waste salt cracking furnace containing water, organic matters and other soluble gases |
| CN111288473A (en) * | 2020-02-14 | 2020-06-16 | 河海大学 | Pyrolysis treatment system for removing organic matters in chemical waste salt |
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