CN210583461U - Decyanation system for cyanamide waste residues - Google Patents
Decyanation system for cyanamide waste residues Download PDFInfo
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- CN210583461U CN210583461U CN201921043881.XU CN201921043881U CN210583461U CN 210583461 U CN210583461 U CN 210583461U CN 201921043881 U CN201921043881 U CN 201921043881U CN 210583461 U CN210583461 U CN 210583461U
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Abstract
The utility model belongs to the technical field of solid waste processing technique and specifically relates to a decyanation system for cyanamide waste residue, including processing unit and electrical unit, electrical unit control processing unit work is equipped with electrically controlled device in the electrical unit, and processing unit includes feed system, decyanation processing system, water supply system and odor treatment system, and each functional unit of feed system, decyanation processing system, water supply system and odor treatment system is connected with electrical unit control; each functional unit is modular design, compact structure, the quick assembly disassembly of being convenient for, transportation and independent assortment in the system, and degree of automation is high, the personnel of being convenient for operate and maintain, can decyanate the cyanamide waste residue well to can also effectually prevent because of the stink and the emergence that waste water caused the environment secondary pollution accident, economic benefits is good, is worth promoting.
Description
Technical Field
The utility model relates to a solid waste handles technical field, especially relates to a decyanation system for single cyanamide waste residue.
Background
Cyanamide (also known as Cyanamide, urea anhydride) of the formula NH2N2And molecular weight 42.02. The crystal cyanamide is unstable, rhombic, colorless and easy to damp, and has a melting point of 46 ℃ and a boiling point of 83 ℃. The cyanamide has high solubility in water and weak acidity, and is completely mutually soluble with water at 43 ℃. The cyanamide is an important chemical raw material, an organic chemical intermediate and a very important medical raw material, can also be used as an intermediate of a pesticide product to produce pesticides, and can also be used for synthesis of health products and feed additives, synthesis of flame retardants and the like, so that the cyanamide has very wide application.
At present, the cyanamide is mainly prepared by a lime nitrogen method in China, and the process flow is that lime nitrogen is lifted and enters a hydrolysis tank to generate a lime nitrogen aqueous solution, and the lime nitrogen aqueous solution and CO with the concentration of 28 percent2Hydrolyzing under certain temperature and pH condition to generate cyanamide, filtering the mixture containing cyanamide to generate a cyanamide solution, and concentrating the cyanamide solution to obtain the product. Therefore, the method needs huge equipment and relatively lagged production process, and a large amount of cyanamide waste residues are generated in the production process.
The cyanamide waste residue is black and powdery solid, has strong pungent smell (mainly ammonia gas), contains a highly toxic substance cyanide, and can only be disposed of by the characteristics, such as landfill, incineration and the like, and the modes are generally high in cost and high in environmental risk, and cause serious pollution to the surrounding environment if the waste residue is improperly disposed. Therefore, a safe, efficient, economical, feasible and environment-friendly detoxification system specially for cyanamide waste residues is urgently needed in the prior art, the waste residues are subjected to detoxification treatment such as decyanation, deodorization and the like, and the waste residues after detoxification can be directly and comprehensively utilized, such as serving as brick making raw materials, cement additives, concrete aggregates and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects in the prior art and providing a decyanation system for cyanamide waste residue.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the decyanation system for the cyanamide waste residue comprises a processing unit and an electric control unit, wherein the electric control unit controls the processing unit to work, an electric control device for controlling and finishing the safe and stable operation and unified management of the whole system is arranged in the electric control unit, an operation platform and system, an electronic instrument and a programmable control program are arranged in the electric control device, the processing unit comprises a feeding system, a decyanation processing system, a water supply system and an odor processing system, and all functional units of the feeding system, the decyanation processing system, the water supply system and the odor processing system are in control connection with the electric control unit;
the feeding system comprises a feeding hopper, a conveyor belt and a vibrating screen, wherein the conveyor belt is obliquely arranged on one side of the slag pool, the feeding hopper is arranged above the feeding end of the conveyor belt, and the vibrating screen is arranged below the discharging end of the conveyor belt;
the decyanation treatment system comprises a first-level dosing device, a first-level decyanation groove, a second-level dosing device, a second-level decyanation groove, a third-level dosing device, a third-level decyanation groove, a dewatering device and a high-pressure water washing device, wherein the high-pressure water washing device is arranged above the vibrating screen, the first-level decyanation groove, the second-level decyanation groove and the third-level decyanation groove are mutually connected in series through waste residue operation pipelines, the feeding end of the first-level decyanation groove is connected to the discharging end of the bottom of the vibrating screen, the discharging end of the third-level decyanation groove is connected to the dewatering device, and the first-level dosing device, the second-level dosing device and the third-level dosing device are respectively connected to;
the water supply system comprises an adjusting tank, a clean water supply device and an automatic water quantity controller, the clean water supply device is connected with the adjusting tank through a water pipe, the water outlet end of the adjusting tank is connected with the high-pressure water washing device through a washing water running pipeline, the automatic water quantity controller is arranged on the washing water running pipeline, the adjusting tank is also connected with a reuse water running pipeline, and the other end of the reuse water running pipeline is connected to the dehydration device;
the odor treatment system comprises an odor absorption tower and an odor online monitoring device, wherein the odor online monitoring device is arranged in an exhaust port of the odor absorption tower, the odor online monitoring device is connected with an electric control device, and the odor absorption tower is respectively connected with a primary decyanation groove, a secondary decyanation groove and a tertiary decyanation groove through odor running pipelines.
Preferably, both sides of the conveyor belt are provided with flanges and are of a closed structure, and a metering device is arranged inside the conveyor belt and connected with an electric control device.
Preferably, the installation of shale shaker adopts the slope form, and the angle is 80 degrees, and the screen cloth is the wire mesh grid, and the sieve mesh size is 5 mm.
Preferably, the pressure intensity of flushing water of the high-pressure water flushing device is set to be 0.2-0.3 Mpa.
Preferably, the top of the first-level dosing device, the second-level dosing device and the third-level dosing device is provided with a medicament stirring device and a quantitative dosing device.
Preferably, the first-stage decyanation tank, the second-stage decyanation tank and the third-stage decyanation tank are of a closed structure, the top parts of the first-stage decyanation tank, the second-stage decyanation tank and the third-stage decyanation tank are all provided with a dosing pipeline, an odor extraction pipeline and a mechanical stirring device, the dosing pipeline is connected with a medicament operation pipeline, and the odor extraction pipeline is connected with an odor operation pipeline.
Preferably, a floating ball type liquid level switch is arranged in the regulating tank.
Preferably, the dewatering device is one of a plate and frame filter press, a centrifugal dehydrator, and a belt filter press.
The utility model provides a decyanation system for cyanamide waste residue, beneficial effect lies in:
(1) each functional unit is modularized design, compact structure, the quick assembly disassembly of being convenient for, transportation and independent assortment in the system, and degree of automation is high, the personnel of being convenient for operate and maintain.
(2) Except that the system can decyanate the cyanamide waste residue well, convert the cyanide in the waste residue into nontoxic material, the odor treatment system who sets up in the system can carry out fine collection and processing to all kinds of foul gas that the waste residue decyanation in-process produced, ensures gaseous emission up to standard. In addition, after the waste residue is subjected to three-stage decyanation, the wastewater generated by the dehydration device is not discharged outside and completely flows back to the regulating tank to be used as flushing water for reutilization. Therefore, the system can also effectively prevent the occurrence of secondary environmental pollution accidents caused by odor and waste water.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Labeled as: the device comprises a slag pool 1, a feed hopper 2, a conveyor belt 3, a metering device 4, a vibrating screen 5, a high-pressure water washing device 6, oversize granular materials 7, a primary dosing device 8, a primary decyanation tank 9, a secondary dosing device 10, a secondary decyanation tank 11, a tertiary dosing device 12, a tertiary decyanation tank 13, a dehydration device 14, dehydrated waste residues 15, an adjusting tank 16, a floating ball type liquid level switch 17, an automatic water quantity controller 18, an odor absorption tower 19, an online odor monitoring device 20, a clean water supply device 21, an electric control device 22, a medicament stirring device 23, a quantitative dosing device 24, a dosing pipeline 25, an odor extraction pipeline 26, a mechanical stirring device 27, a waste residue running pipeline 28, a medicament running pipeline 29, an odor running pipeline 30, a reuse water running pipeline 31 and a washing water running pipeline 32.
Detailed Description
The present invention will be further described with reference to the following specific examples. These examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The structural features of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, a decyanation system for cyanamide waste residue comprises a processing unit and an electric control unit, wherein the electric control unit controls the processing unit to work, an electric control device 22 for controlling and completing safe, stable operation and unified management of the whole system is arranged in the electric control unit, an operation platform and system, electronic instruments and meters and programmable control programs are arranged in the electric control device 22, the processing unit comprises a feeding system, a decyanation processing system, a water supply system and an odor processing system, and all functional units of the feeding system, the decyanation processing system, the water supply system and the odor processing system are in control connection with the electric control unit;
the feeding system comprises a feeding hopper 2, a conveyor belt 3 and a vibrating screen 5, wherein the conveyor belt 3 is obliquely arranged on one side of the slag pool 1, the feeding hopper 2 is arranged above the feeding end of the conveyor belt 3, and the vibrating screen 5 is arranged below the discharging end of the conveyor belt 3;
the decyanation treatment system comprises a primary dosing device 8, a primary decyanation tank 9, a secondary dosing device 10, a secondary decyanation tank 11, a tertiary dosing device 12, a tertiary decyanation tank 13, a dehydration device 14 and a high-pressure water flushing device 6, wherein the high-pressure water flushing device 6 is arranged above the vibrating screen 5, the primary decyanation tank 9, the secondary decyanation tank 11 and the tertiary decyanation tank 13 are mutually connected in series through a waste residue operation pipeline 28, the feeding end of the primary decyanation tank 9 is connected to the discharging end of the bottom of the vibrating screen 5, the discharging end of the tertiary decyanation tank 13 is connected to the dehydration device 14, and the primary dosing device 8, the secondary dosing device 10 and the tertiary dosing device 12 are respectively connected to the corresponding primary decyanation tank 9, the secondary decyanation tank 11 and the tertiary decyanation tank 13 through a;
the water supply system comprises an adjusting tank 16, a clean water supply device 21 and an automatic water quantity controller 18, wherein the clean water supply device 21 is connected with the adjusting tank 16 through a water pipe, the water outlet end of the adjusting tank 16 is connected with the high-pressure water washing device 6 through a washing water running pipeline 32, the automatic water quantity controller 18 is arranged on the washing water running pipeline 32, the adjusting tank 16 is also connected with a reuse water running pipeline 31, and the other end of the reuse water running pipeline 31 is connected with the dewatering device 14;
the odor treatment system comprises an odor absorption tower 19 and an odor online monitoring device 20, wherein the odor online monitoring device 20 is arranged in an exhaust port of the odor absorption tower 19, the odor online monitoring device 20 is connected with an electric control device 22, and the odor absorption tower 19 is respectively connected with a primary decyanation groove 9, a secondary decyanation groove 11 and a tertiary decyanation groove 13 through odor operation pipelines 30.
The utility model discloses a decyanation system for single cyanamide waste residue, each functional unit is modular design, compact structure, the quick assembly disassembly of being convenient for, transports and independent assortment in the system, and degree of automation is high, the personnel of being convenient for operate and maintain. Except that the system can be well decyanate the cyanamide waste residue, the cyanide in the waste residue is converted into nontoxic substances, the odor treatment system arranged in the system can be used for well collecting and treating various odor gases generated in the waste residue decyanation process, and the gas is ensured to be discharged up to the standard. In addition, after the waste residue is subjected to three-stage decyanation, the wastewater generated by the dehydration device is not discharged outside and completely flows back to the regulating tank to be used as flushing water for reutilization. Therefore, the system can also effectively prevent the occurrence of secondary environmental pollution accidents caused by odor and waste water.
Specifically, during the use, after the cyanamide waste residue that keeps in the sediment pond 1 is sent into feeder hopper 2 by loader or excavator, the waste residue falls on the conveyer belt 3 that is equipped with metering device 4, carry to shale shaker 5 department, under the effect of high-pressure water washing unit 6, stay on screen cloth upper portion granule material 7 from the side landing, the sediment water mixture that falls into the screen cloth below, loop through one-level decyanation groove 9 by the one-level dosing device 8 confession medicine, by second grade decyanation groove 11 of second grade dosing device 10 confession medicine, by tertiary decyanation groove 13 of tertiary dosing device 12 confession medicine, the sediment water mixture pump after accomplishing the detoxification is handled carries out the dehydration device 14 and dewaters, waste residue 15 transports outward and keeps in after the dehydration. The waste water generated by dehydration completely flows back to a regulating tank 16 provided with a floating ball type liquid level switch 17, clean water is supplemented into the regulating tank 16 by a clean water supply device 21 periodically, and the water in the tank is quantitatively supplied to the high-pressure water washing device 6 for use through a water quantity automatic control device 18. The odor generated by stirring waste residues in the first-stage decyanation tank 9, the second-stage decyanation tank 11 and the third-stage decyanation tank 13 is uniformly collected to an odor absorption tower 19 through an extraction pipeline for treatment, and an odor on-line monitoring device 20 is arranged at the position of a gas discharge port of the absorption tower.
Referring to fig. 1, further, both sides of the conveyor belt 3 are provided with flanges and are of a closed structure, a metering device 4 is arranged inside the conveyor belt 3, and the metering device 4 is connected with an electric control device 22.
The metering device 4 can meter the amount of the waste residues on the conveyor belt 3, and the arrangement of the flanges can effectively avoid the waste residues from leaking outside from the two sides of the conveyor belt 3.
Referring to fig. 1, further, the vibrating screen 5 is installed in a slope form, the angle is 80 degrees, the screen mesh is a steel wire mesh grid, and the size of the screen mesh is 5 mm.
A vibrating screen 5 in the form of a ramp is provided to facilitate discharge of oversize particulate material 7 from the vibrating screen 5 during use.
Furthermore, the pressure intensity of the flushing water of the high-pressure water flushing device 6 is set to be 0.2-0.3 Mpa.
Referring to fig. 1, further, a medicament stirring device 23 and a quantitative dosing device 24 are arranged at the top of each of the primary dosing device 8, the secondary dosing device 10 and the tertiary dosing device 12.
The arrangement of the medicament stirring device 23 and the quantitative dosing device 24 can facilitate the feeding and mixing of the medicaments inside the first-level dosing device 8, the second-level dosing device 10 and the third-level dosing device 12.
Referring to fig. 1, further, the primary decyanation tank 9, the secondary decyanation tank 11 and the tertiary decyanation tank 13 are of a closed structure, the top parts of the primary decyanation tank, the secondary decyanation tank and the tertiary decyanation tank are respectively provided with a dosing pipeline 25, an odor extraction pipeline 26 and a mechanical stirring device 27, the dosing pipeline 25 is connected with a medicament operation pipeline 29, and the odor extraction pipeline 26 is connected with an odor operation pipeline 30.
The chemical feeding pipeline 25, the odor extraction pipeline 26 and the mechanical stirring device 27 are arranged, the mechanical stirring device 27 is used for facilitating the stirring reaction of the inside decyanation of the first-stage decyanation tank 9, the second-stage decyanation tank 11 and the third-stage decyanation tank 13, the chemical feeding pipeline 25 is used for feeding chemicals into the corresponding decyanation tanks by the chemical feeding device, and the odor extraction pipeline 26 is used for extracting odor generated by stirring waste residues.
Referring to fig. 1, further, a floating ball type liquid level switch 17 is arranged in the regulating reservoir 16.
A float ball type level switch 17 is provided to control the water level of the conditioning tank 16 so that the water level in the conditioning tank 16 is within a set value.
Further, the dewatering device 14 is one of a plate and frame filter press, a centrifugal dehydrator, and a belt filter press.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A decyanation system for cyanamide waste residue comprises a processing unit and an electric control unit, wherein the electric control unit controls the processing unit to work, and is characterized in that an electric control device (22) for controlling and finishing the safe, stable operation and unified management of the whole system is arranged in the electric control unit, an operation platform and system, electronic instruments and programmable control programs are arranged in the electric control device (22), the processing unit comprises a feeding system, a decyanation processing system, a water supply system and an odor processing system, and all functional units of the feeding system, the decyanation processing system, the water supply system and the odor processing system are in control connection with the electric control unit;
the feeding system comprises a feeding hopper (2), a conveying belt (3) and a vibrating screen (5), wherein the conveying belt (3) is obliquely arranged on one side of the slag pool (1), the feeding hopper (2) is arranged above the feeding end of the conveying belt (3), and the vibrating screen (5) is arranged below the discharging end of the conveying belt (3);
decyanation processing system includes one-level charge device (8), one-level decyanation groove (9), second grade charge device (10), second grade decyanation groove (11), tertiary charge device (12), tertiary decyanation groove (13), dewatering device (14) and high pressure water washing unit (6), high pressure water washing unit (6) are installed the top of shale shaker (5), one-level decyanation groove (9), second grade decyanation groove (11) and tertiary decyanation groove (13) are established ties each other through waste residue operation pipeline (28), and the feed end of one-level decyanation groove (9) is connected on the discharge end of shale shaker (5) bottom, and the discharge end of tertiary decyanation groove (13) is connected on dewatering device (14), one-level charge device (8), second grade charge device (10) and tertiary charge device (12) are connected respectively at corresponding one-level decyanation groove (9) through medicament operation pipeline (29), A secondary decyanation tank (11) and a tertiary decyanation tank (13);
the water supply system comprises an adjusting tank (16), a clean water supply device (21) and an automatic water quantity controller (18), wherein the clean water supply device (21) is connected with the adjusting tank (16) through a water pipe, the water outlet end of the adjusting tank (16) is connected with the high-pressure water washing device (6) through a washing water running pipeline (32), the automatic water quantity controller (18) is arranged on the washing water running pipeline (32), the adjusting tank (16) is also connected with a recycled water running pipeline (31), and the other end of the recycled water running pipeline (31) is connected to the dewatering device (14);
the odor treatment system comprises an odor absorption tower (19) and an odor online monitoring device (20), wherein the odor online monitoring device (20) is arranged in an exhaust port of the odor absorption tower (19), the odor online monitoring device (20) is connected with an electric control device (22), and the odor absorption tower (19) is respectively connected with a first-stage decyanation groove (9), a second-stage decyanation groove (11) and a third-stage decyanation groove (13) through an odor running pipeline (30).
2. The decyanation system for cyanamide waste residue as claimed in claim 1, characterized in that, the conveyor belt (3) is equipped with flanges on both sides and has a closed structure, the interior of the conveyor belt (3) is equipped with a metering device (4), and the metering device (4) is connected with an electric control device (22).
3. The decyanation system for cyanamide waste residue as claimed in claim 1, characterized in that the installation of the vibrating screen (5) is in the form of a slope with an angle of 80 degrees, the screen is a wire mesh with a mesh size of 5 mm.
4. The decyanation system for cyanamide waste residue as claimed in claim 1, wherein the pressure of the washing water of the high-pressure water washing device (6) is set to 0.2-0.3 Mpa.
5. The decyanation system for cyanamide waste residue according to claim 1, characterized in that the top of the primary dosing device (8), the secondary dosing device (10) and the tertiary dosing device (12) are all provided with a medicament stirring device (23) and a quantitative dosing device (24).
6. The decyanation system for cyanamide waste residue according to claim 1, wherein the primary decyanation tank (9), the secondary decyanation tank (11), and the tertiary decyanation tank (13) are closed structures, the top of each of which is provided with a dosing pipeline (25), an odor extraction pipeline (26), and a mechanical stirring device (27), the dosing pipeline (25) is connected with a medicament operation pipeline (29), and the odor extraction pipeline (26) is connected with an odor operation pipeline (30).
7. The decyanation system for cyanamide waste residue, according to claim 1, characterized in that a floating ball type liquid level switch (17) is arranged in the adjusting tank (16).
8. The decyanation system for cyanamide waste residue as claimed in claim 1, wherein the dewatering device (14) is one of a plate and frame filter press, a centrifugal dehydrator and a belt filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921043881.XU CN210583461U (en) | 2019-07-05 | 2019-07-05 | Decyanation system for cyanamide waste residues |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921043881.XU CN210583461U (en) | 2019-07-05 | 2019-07-05 | Decyanation system for cyanamide waste residues |
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| CN210583461U true CN210583461U (en) | 2020-05-22 |
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| CN201921043881.XU Active CN210583461U (en) | 2019-07-05 | 2019-07-05 | Decyanation system for cyanamide waste residues |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251879A (en) * | 2019-07-05 | 2019-09-20 | 科盛环保科技股份有限公司 | A kind of decyanation system and method for cyanamide waste residue |
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2019
- 2019-07-05 CN CN201921043881.XU patent/CN210583461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251879A (en) * | 2019-07-05 | 2019-09-20 | 科盛环保科技股份有限公司 | A kind of decyanation system and method for cyanamide waste residue |
| CN110251879B (en) * | 2019-07-05 | 2024-07-12 | 科盛环保科技股份有限公司 | Decyanation system and method for cyanamide waste residues |
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