CN214059929U

CN214059929U - Useless processing system of salt danger

Info

Publication number: CN214059929U
Application number: CN202023140591.2U
Authority: CN
Inventors: 彭江红
Original assignee: Zhangjiagang Baihe Technology Co ltd
Current assignee: Zhangjiagang Baihe Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-27
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to a useless processing system of salt danger, including being used for mixing the useless dewatering device who dewaters with the living beings powder of salt danger, the particle forming machine, a reactor for burning the granule, link to each other and be used for dissolving the granule and burn the salt dissolving tank of back material and through the pipeline with dissolve the evaporation crystallization device that the salt pond links to each other with the reactor through the pipeline, set up between dewatering device and the particle forming machine and be used for carrying out the conveyor that the granulation is carried to the particle forming machine with the useless material that mixes the dehydration with the living beings powder of salt danger, dissolve the supernatant in the salt pond and carry out the evaporation crystallization in through pipe-line transportation to the evaporation crystallization device. The treatment system is adopted to mix and dehydrate the hazardous saline waste and the biomass powder, press the mixture into granular fuel, then carry out incineration treatment, dissolve and remove impurities from the incinerated substance by water, and carry out evaporative crystallization on the supernatant to prepare high-purity salt, thereby fundamentally solving the problem of treatment of the hazardous saline waste and realizing harmless, reduced and recycling treatment of the hazardous saline waste.

Description

Useless processing system of salt danger

Technical Field

The utility model belongs to the technical field of the useless processing of danger, concretely relates to useless processing system of salt danger.

Background

The salt hazardous waste (such as salt hazardous waste generated in industries of oil refining, pesticides, fine chemical engineering, medicines, printing and dyeing, food additives and the like) refers to salt-containing hazardous waste, the main component is sodium chloride, main pollution is divided into heavy metal pollution and organic pollution, the salt hazardous waste is always a difficult problem to dispose at present, no mature process is available, and the treatment cost is extremely high.

The current common treatment method is to carry out a small amount of blending combustion treatment in a hazardous waste incineration device or send the hazardous waste incineration device to an external province which can be buried for landfill treatment.

For doping treatment, the general proportion of doping does not exceed 3 percent, and the treatment of a large amount of salt hazardous wastes is greatly limited. In addition, the existing incineration device directly incinerates hazardous wastes at high temperature (generally above 850 ℃ or even up to 1100 ℃), salt substances are generally melted at above 600 ℃, the melted salt wraps up harmful substances such as organic matters and the like to block oxidation reaction, the harmful substances are difficult to decompose, and the organic matters are decomposed by prolonging the retention time in some methods, so that the treatment cost is obviously increased.

With the improvement of environmental protection requirements and the decrease of the places which can be treated by landfill, the method is not advocated.

Disclosure of Invention

The utility model aims to solve the technical problem that to the drawback of prior art, provide a low cost, minimizing, energy, the useless processing system of salt danger of innoxious.

For solving the technical problem, the utility model discloses a following technical scheme:

the utility model provides a useless processing system of salt danger, is including being used for mixing the useless dewatering device and the particle forming machine that dewater with the living beings powder of salt danger, set up between dewatering device and the particle forming machine be used for with the useless material of mixing behind the dewatering with the living beings powder of salt danger is carried extremely carry out the conveyor of granulation in the particle forming machine, processing system still including be used for right the granule of particle forming machine preparation is burned reactor, through the pipeline with the reactor links to each other and is used for dissolving the dissolved salt pond of the material after the granule burns and through the pipeline with dissolve the evaporative crystallization device that the salt pond links to each other, the supernatant in the dissolved salt pond passes through the pipeline transport extremely carry out evaporative crystallization in the evaporative crystallization device.

According to some implementation aspects of the utility model, the reactor includes the low temperature section of burning and is located the high temperature purification section of low temperature section lower part of burning, connect the oxygen therapy pipe that is used for carrying oxygen-containing gas on the middle part of reactor, just oxygen therapy union coupling is in burn between section and the high temperature purification section at low temperature.

Further, the bottom of the reactor is connected with the dissolved salt pool through the pipeline.

According to some implementation aspects of the present invention, the dewatering device and the evaporative crystallization device are respectively connected with a drain pipe.

According to some implementation aspects of the utility model, processing system still includes and is used for retrieving the recovery storehouse of dissolving salt pond residue and being used for retrieving the high-purity salt storage tank of the high-purity salt of evaporative crystallization device preparation.

According to some aspects of the present disclosure, the pellet forming machine is a ring die forming machine.

According to some implementation aspects of the utility model, processing system is still including the former feed bin of second that is used for depositing the useless first feed bin of salt danger and is used for depositing the living beings powder, set up between first feed bin and the dewatering device and be used for carrying salt danger to useless conveying mechanism in the dewatering device, set up between former feed bin of second and the dewatering device and be used for carrying living beings powder to conveying mechanism in the dewatering device.

According to some implementation aspects of the utility model, processing system still includes the cooling arrangement that is used for cooling the granule that the particle forming machine prepared and is used for depositing the granule storehouse of granule after the cooling, set up between particle forming machine and the cooling arrangement be used for with the granule that the particle forming machine prepared is carried extremely the conveying mechanism of cooling arrangement, the granule storehouse with set up between the reactor and be used for with granule in the granule storehouse is carried extremely the conveyor of reactor.

Further, the conveying mechanism arranged between the particle forming machine and the cooling device is a conveying belt, and the conveying mechanism arranged between the particle bin and the reactor is a screw conveyor.

According to some implementation aspects of the present disclosure, the cooling apparatus includes a cooling chamber for holding the granules from the granule maker and a blower for supplying air into the cooling chamber.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the treatment system is adopted to mix and dehydrate the salt hazardous waste and the biomass powder, then the mixture is pressed into granular fuel, then the granular fuel is sent to the reactor for incineration treatment, then the incineration substances are dissolved and decontaminated by water, and the supernatant is evaporated and crystallized to prepare high-purity salt, so that the problem of the treatment of the salt hazardous waste is fundamentally solved, and the harmless, reduction and recycling treatment of the salt hazardous waste is realized.

The treatment system is used for treating the salt hazardous wastes, so that the investment cost for system construction is low, and the treatment cost is low.

Drawings

Fig. 1 is a schematic structural diagram of a system for treating salt-based hazardous waste according to an embodiment of the present invention;

in the figure: 1. a first raw material bin; 2. a second raw material bin; 3. a dewatering device; 4. a particle forming machine; 5. a cooling device; 6. a particle bin; 7. a reactor; 71. a low-temperature incineration section; 72. a high temperature purification section; 8. an evaporative crystallization device; 9. a salt dissolving pool; 10. a recovery bin; 11. a high-purity salt storage tank; 12. a drain pipe; 13. an oxygen delivery tube; 14. a wastewater treatment device.

Detailed Description

The invention is further described below with reference to the drawings in the specification:

the system for treating salt-type hazardous waste shown in fig. 1 comprises a first raw material bin 1 for storing salt-type hazardous waste, a second raw material bin 2 for storing biomass powder, a dehydration device 3 for mixing and dehydrating the salt-type hazardous waste and the biomass powder, a particle forming machine 4 for granulating the material obtained by mixing and dehydrating the salt-type hazardous waste and the biomass powder, a cooling device 5 for cooling particles prepared by the particle forming machine 4, and a particle bin 6 for storing the cooled particles, wherein a conveying device (a pipeline and a conveying pump arranged on the pipeline) for conveying the salt-type hazardous waste into the dehydration device 3 is arranged between the first raw material bin 1 and the dehydration device 3, a conveying device (a pipeline and a conveying pump arranged on the pipeline) for conveying the biomass powder into the dehydration device 3 and mixing and dehydrating the salt-type hazardous waste is arranged between the second raw material bin 2 and the dehydration device 3, a conveying device (a pipeline and a conveying pump arranged on the pipeline) for conveying the dehydrated materials to the particle forming machine 4 for granulation is arranged between the dehydration device 3 and the particle forming machine 4, a conveying belt for conveying the particles to the cooling device 5 for cooling is arranged between the particle forming machine 4 and the cooling device 5, and a screw conveyor for conveying the cooled particles to the particle bin 6 is arranged between the cooling device 5 and the particle bin 6.

In this example, the dehydration device 3 is a thin film evaporator, and a drain pipe 12 for discharging waste water is connected to the dehydration device 3. The pellet forming machine 4 is a ring die forming machine.

In this example, the cooling device 5 includes a cooling chamber for accommodating the pellets prepared by the pellet forming machine 4 and a blower for blowing air into the cooling chamber to cool the pellets, and the pellets prepared by the pellet forming machine 4 start to be cooled while passing through the conveyor belt, and the conveyor belt is conveyed into the cooling chamber and is blown by the blower to further cool the pellets.

This processing system still includes the reactor 7 that is used for burning the granule, link to each other and be used for dissolving the granule and burn the salt dissolving tank 9 of back material through pipeline and reactor 7, through the evaporation crystallization device 8 that pipeline and salt dissolving tank 9 link to each other, a recovery bin 10 that is used for retrieving residue in the salt dissolving tank 9 and be used for retrieving the high-purity salt storage tank 11 of the high-purity salt that evaporation crystallization device 8 prepared, the supernatant in the salt dissolving tank 9 carries out the evaporation crystallization in passing through pipeline transport to evaporation crystallization device 8, still connect drain pipe 12 on the evaporation crystallization device 8.

In this example, the reactor 7 includes a low-temperature incineration section 71 and a high-temperature purification section 72 located at the lower part of the low-temperature incineration section 71, the middle part of the reactor 7 is connected with an oxygen pipe 13 for conveying oxygen-containing gas, the oxygen pipe 13 is connected between the low-temperature incineration section 71 and the high-temperature purification section 72, and the oxygen-containing gas is conveyed into the reactor 7 from the middle part of the reactor 7 to realize the incineration of the low-temperature incineration section 71 at a temperature below 600 ℃, so that harmful substances in the salt hazardous waste are fully combusted and converted into harmless substances, and then the harmless substances are purified at a high temperature.

The processing method of the processing system comprises the following steps: after salt hazardous waste and biomass powder are mixed and dehydrated, the mixture is pressed into granular fuel through a ring die, the cooled granular fuel is burnt at low temperature to enable harmful substances in the salt hazardous waste to be fully burnt and converted into harmless substances, then the molten material is obtained through high-temperature purification, the molten material enters a salt dissolving pool 9 to be dissolved and decontaminated by water after being cooled, solidified and crushed, the supernatant is evaporated and crystallized to prepare high-purity salt, the residue of the salt dissolving pool 9 is recycled, and the wastewater removed through low-temperature dehydration and the wastewater generated through evaporative crystallization are discharged to a wastewater treatment device 14 through a drain pipe 12 to be treated.

Taking a certain pesticide enterprise in Jiangsu as an example, the salt hazardous waste generated is as follows: the water content is 15%, the organic matter content is 8%, the salt content is greater than 75.85%, and the heat value is 2400J/g.

If the salt hazardous waste is directly treated by adopting a high-temperature 850 ℃ incineration reaction, the salt hazardous waste is obtained after the retention time of 1h and is lumpy and dark brown; the salt waste obtained after the retention time of 24 hours is lumpy and yellowed.

Adopt above-mentioned processing system to handle, with the useless and living beings powder of salt danger with 1: 0.6-0.2, and the heat value of the prepared granular fuel is increased to more than 4000J/g, even more than 8000J/g, the granular fuel is blocky and off-white after being cooled by molten salt waste obtained after the combustion of the reactor 7, and the white pure salt crystal is obtained after dissolution, evaporation and crystallization.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a useless processing system of salt danger which characterized in that: including being used for mixing dewatering device and the particle forming machine that dewaters with the useless and living beings powder of salt danger, set up between dewatering device and the particle forming machine be used for with the useless and living beings powder of salt danger mixes the material after the dehydration and carries extremely carry out the conveyor of granulation in the particle forming machine, processing system still including be used for right the granule of particle forming machine preparation is burned reactor, through the pipeline with the reactor links to each other and is used for dissolving the granule and burns the salt dissolving pond of back material and through the pipeline with dissolve the evaporation crystallization device that the salt pond links to each other, the supernatant in the salt dissolving pond passes through the pipeline transport extremely carry out the evaporative crystallization in the evaporation crystallization device.

2. The system for treating salt-type hazardous waste of claim 1, wherein: the reactor includes the low temperature section of burning and is located the high temperature purification section of low temperature section lower part of burning, connect the oxygen therapy pipe that is used for carrying oxygen-containing gas on the middle part of reactor, just oxygen therapy union coupling is in burn between section and the high temperature purification section at low temperature.

3. The system for treating salt-type hazardous waste according to claim 2, wherein: the bottom of the reactor is connected with the dissolved salt pool through the pipeline.

4. The system for treating salt-type hazardous waste of claim 1, wherein: and the dewatering device and the evaporative crystallization device are respectively connected with a drain pipe.

5. The system for treating salt-type hazardous waste of claim 1, wherein: the treatment system also comprises a recovery bin for recovering the residue in the salt dissolving tank and a high-purity salt storage tank for recovering the high-purity salt prepared by the evaporative crystallization device.

6. The system for treating salt-type hazardous waste of claim 1, wherein: the particle forming machine is a ring die forming machine.

7. The system for treating salt-type hazardous waste of claim 1, wherein: the processing system further comprises a first raw material bin for storing salt dangerous waste and a second raw material bin for storing biomass powder, a conveying mechanism for conveying the salt dangerous waste to the inside of the dehydration device is arranged between the first raw material bin and the dehydration device, and a conveying mechanism for conveying the biomass powder to the inside of the dehydration device is arranged between the second raw material bin and the dehydration device.

8. The system for treating salt-type hazardous waste according to any one of claims 1-7, wherein: the processing system further comprises a cooling device for cooling the particles prepared by the particle forming machine and a particle bin for storing the cooled particles, a conveying mechanism for conveying the particles prepared by the particle forming machine to the cooling device is arranged between the particle forming machine and the cooling device, and a conveying device for conveying the particles in the particle bin to the reactor is arranged between the particle bin and the reactor.

9. The system for treating salt-type hazardous waste of claim 8, wherein: the conveying mechanism arranged between the particle forming machine and the cooling device is a conveying belt, and the conveying mechanism arranged between the particle bin and the reactor is a screw conveyor.

10. The system for treating salt-type hazardous waste of claim 8, wherein: the cooling device comprises a cooling bin for containing the granules prepared by the granule forming machine and a blower for blowing air into the cooling bin.