CN112645487A - Integrated treatment device for leaching sewage from heavy metal contaminated soil - Google Patents

Integrated treatment device for leaching sewage from heavy metal contaminated soil Download PDF

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Publication number
CN112645487A
CN112645487A CN202011362682.2A CN202011362682A CN112645487A CN 112645487 A CN112645487 A CN 112645487A CN 202011362682 A CN202011362682 A CN 202011362682A CN 112645487 A CN112645487 A CN 112645487A
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CN
China
Prior art keywords
tank
sewage
heavy metal
coagulation
leaching
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Pending
Application number
CN202011362682.2A
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Chinese (zh)
Inventor
黄海
田立斌
赵雪瑞
姜玉肖
李辉辉
高运志
姜鸿喆
李慧
田华
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Suzhou Elite Environmental Protection Co Ltd
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Suzhou Elite Environmental Protection Co Ltd
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Filing date
Publication date
Application filed by Suzhou Elite Environmental Protection Co Ltd filed Critical Suzhou Elite Environmental Protection Co Ltd
Priority to CN202011362682.2A priority Critical patent/CN112645487A/en
Publication of CN112645487A publication Critical patent/CN112645487A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • C02F2305/026—Fenton's reagent

Abstract

The invention discloses an integrated treatment device for leaching sewage from heavy metal contaminated soil, which comprises: the system comprises a regulating tank, an oxidation-reduction tank, a coagulation-flocculation tank, an inclined plate sedimentation tank, a quartz sand filter tank, an activated carbon filter tank and a central control unit. Through the mode, the integrated treatment device for leaching sewage from heavy metal contaminated soil disclosed by the invention can purify sewage generated by leaching remediation through multi-stage treatment, automatically allocate the dosage of the medicament through the online real-time monitoring probe, is high in precision, saves the labor cost, can continuously utilize the filter material, can treat various heavy metal pollutants, does not generate secondary pollution, can reuse effluent for leaching remediation equipment, saves the leaching medicament, improves the leaching remediation efficiency, and has the advantages of simple structure, equipment integration, reduction in remediation cost and the like.

Description

Integrated treatment device for leaching sewage from heavy metal contaminated soil
Technical Field
The invention relates to the technical field of polluted site remediation, in particular to an integrated treatment device for leaching sewage from heavy metal polluted soil.
Background
With the development of the soil leaching remediation technology, a large amount of leaching liquid is generated in the leaching process, the leaching liquid contains the leaching agent and pollutants transferred from the soil, especially heavy metal polluted soil leaching sewage, the heavy metal content is ultrahigh and various, if the heavy metal polluted soil leaching sewage is not properly treated, the direct discharge can cause harm to the environment, so how to treat the leaching sewage is realized, the purpose of reusing the leaching sewage to continuously leach the soil or directly discharging the soil is achieved, and the problem to be solved at present is urgent.
The existing sewage leaching treatment method has high treatment cost and low efficiency, can generate secondary pollution, has complex process and seriously influences the leaching efficiency.
Disclosure of Invention
The invention mainly solves the technical problem of providing an integrated treatment device for leaching sewage from heavy metal polluted soil.
In order to solve the technical problems, the invention adopts a technical scheme that:
the utility model provides a heavy metal contaminated soil drip washing sewage integrate processing apparatus, includes: the system comprises an adjusting tank, an oxidation-reduction tank, a coagulation-flocculation tank, an inclined plate sedimentation tank, a quartz sand filter tank, an activated carbon filter tank and a central control unit, wherein real-time monitoring probes are arranged in the adjusting tank, the oxidation-reduction tank, the coagulation-flocculation tank, the inclined plate sedimentation tank and the quartz sand filter tank, override pipes are arranged in the adjusting tank, the oxidation-reduction tank, the coagulation-flocculation tank, the inclined plate sedimentation tank and the quartz sand filter tank, medicament preparation storage tanks are arranged on the adjusting tank, the oxidation-reduction tank and the coagulation-flocculation tank, the medicament preparation storage tanks are used for setting the amount of input medicaments according to the real-time data of water quality fed back by the real-time monitoring probes, the adjusting tank is provided with a sewage inlet, the sewage generated by leaching remediation enters the adjusting tank from the sewage inlet, the sewage generated by leaching-remediation enters the oxidation-reduction tank through a lifting pump after passing through the adjusting tank or enters the, get into the sewage of redox pond gets into coagulation flocculation basin after the medicament is handled, the medicament includes oxidant and reductant, the inside electric stirring device that sets up of coagulation flocculation basin gets into the sewage of coagulation flocculation basin gets into the inclined plate sedimentation tank after hydraulic stirring, upper portion sets up the swash plate of slope in the inclined plate sedimentation tank, and the floc after the coagulation deposits through the swash plate, and the supernatant after the precipitation flows in through the overflow mouth quartz sand filter, the swash plate below sets up the mud pipe, and mud arranges to sludge treatment facilities, set up multistage filter material in the quartz sand filter, the supernatant is judged according to the quality of water data of the reflection of on-line real-time monitoring probe after the quartz sand filter material filters and is got into drip washing equipment, back flush pipeline or get into the active carbon filter jar, back flush pipeline's outlet through the quartz sand filter is intake, the washed suspended matters are discharged into the inclined plate sedimentation tank through the overflow port.
In a preferred embodiment of the invention, the regulating tank, the oxidation-reduction tank, the coagulation-flocculation tank, the inclined plate sedimentation tank, the quartz sand filter tank and the activated carbon filter tank are arranged in sequence according to the sewage filtration treatment sequence.
In a preferred embodiment of the invention, the medicament preparation storage tanks arranged on the regulating tank, the redox tank and the coagulation flocculation tank store different types of medicaments.
In a preferred embodiment of the invention, after passing through the regulating tank, the sewage is judged to enter the redox tank or enter the coagulation and flocculation tank through the overtaking pipe according to the water quality condition reflected by an online real-time monitoring probe in the regulating tank.
In a preferred embodiment of the invention, the oxidant comprises H2O2Or concentrated nitric acid, and the reducing agent comprises sodium pyrosulfite or ferrous sulfate.
In a preferred embodiment of the present invention, the electric stirring device comprises a stirring shaft and stirring blades arranged on the stirring shaft, the stirring shaft is arranged along a vertical direction, the stirring blades are uniformly distributed on the stirring shaft at equal intervals, and the stirring blades are parallel to each other.
In a preferred embodiment of the present invention, the stirring time of the electric stirring device is 1 to 30 minutes.
In a preferred embodiment of the invention, the medicament preparation storage tank of the coagulation and flocculation tank stores coagulants and flocculants, wherein the coagulants comprise PAC, PFS, CaCl2 and the like, and the medicament preparation storage tank is also connected with a heavy metal capture agent feeding device.
In a preferred embodiment of the invention, the bottom sludge precipitated by the inclined plate is discharged from the sludge discharge pipe to the sludge treatment device.
In a preferred embodiment of the invention, two or three layers of filter materials are paved on the quartz sand filter, back flushing is carried out at regular time, back flushing washing water is sent to a front end regulating reservoir of equipment, if the outlet water of the quartz sand filter meets the recycling standard, the outlet water is reused in a leaching treatment system, if the outlet water does not meet the recycling standard, the outlet water enters an activated carbon filter tank for treatment and is recycled after reaching the standard, and finally the outlet water is stored for recycling or is discharged to a municipal pipe network.
The invention has the beneficial effects that: the utility model provides a processing apparatus integrates of heavy metal contaminated soil drip washing sewage, realize the purification of drip washing restoration production sewage through multi-stage treatment, carry out automatic allotment dosage according to quality of water through online real-time supervision probe, the precision is high, practice thrift the human cost, filter material sustainable use, can handle multiple type heavy metal pollutant and do not produce secondary pollution, it can be used for drip washing repair equipment again to go out water, practice thrift the eluent, improve drip washing repair efficiency, and has the advantages of simple structure, equipment integration, reduction repair cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic overall structure diagram of an integrated treatment apparatus for leaching sewage from heavy metal contaminated soil according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Referring to fig. 1, an embodiment of the present invention includes:
an integrated treatment device for heavy metal contaminated soil leaching sewage, comprising: the sewage treatment system comprises an adjusting tank 3, an oxidation and reduction tank 4, a coagulation and flocculation tank 6, an inclined plate sedimentation tank 9, a quartz sand filter tank 11, an activated carbon filter tank 15 and a central control unit, wherein the adjusting tank 3, the oxidation and reduction tank 4, the coagulation and flocculation tank 6, the inclined plate sedimentation tank 9, the quartz sand filter tank 11 and the activated carbon filter tank 15 are sequentially arranged according to a sewage filtration treatment sequence.
The adjusting tank 3, the redox tank 4, the coagulation-flocculation tank 6, the inclined plate sedimentation tank 9 and the quartz sand filter tank 11 are all internally provided with a real-time monitoring probe 17, the real-time monitoring probe 17 is used for detecting real-time data of treated sewage, the adjusting tank 3, the redox tank 4, the coagulation-flocculation tank 6, the inclined plate sedimentation tank 9 and the quartz sand filter tank 11 are all communicated with an overrunning pipe 12, the adjusting tank 3, the redox tank 4, the coagulation-flocculation tank 6, the inclined plate sedimentation tank 9 and the quartz sand filter tank 11 are respectively provided with a switch valve at the inlet of the overrunning pipe 12, the adjusting tank 3, the redox tank 4 and the coagulation-flocculation tank 6 are all provided with a medicament preparation storage tank 2, the medicaments arranged on the adjusting tank 3, the redox tank 4 and the coagulation-flocculation tank 6 are stored with different types of medicaments, the medicament preparation storage tank 2 is used for setting the dosage of the medicaments according to the real-time data fed back by the real-time monitoring probe 17, the central control unit realizes automatic blending and adding of the medicament.
The adjusting tank 3 is provided with a leaching sewage water inlet 1, sewage generated by leaching restoration enters the adjusting tank 3 from the leaching sewage water inlet 1, if the pH value of the sewage is too high or too low, subsequent reaction is influenced, and a pipeline is easily corroded or sludge is easily deposited, so that the sewage needs to be pretreated in the adjusting tank 3, the pH value of the sewage is adjusted by adding a medicament in the medicament preparation storage tank 2, the medicament preparation storage tank 2 stores acid and alkali liquor medicaments, the pH value of the sewage in the adjusting tank 3 is detected by the online real-time monitoring probe 17 in the tank, the central control unit adjusts the medicament adding amount according to real-time data, automatic medicament allocation is realized, and the pH value of the sewage is controlled to be the optimum alkalescent environment for the subsequent treatment reaction.
After the pH value of sewage is adjusted, sewage enters the redox pool 4 through the lift pump 13 or enters the coagulation flocculation pool 6 through the overtaking pipe 12, the concentration of heavy metals in the sewage is judged according to the concentration, and the sewage enters the redox pool 4 or enters the coagulation flocculation pool 6 through the overtaking pipe 12 according to the water quality data reflected by the real-time monitoring probe 17 in the sewage after entering the regulating pool 3.
The oxidation-reduction pool 4 comprises an oxidation pool and a reduction pool, a medicament arranged on the oxidation pool is used for preparing an oxidant in the storage tank 2, a medicament arranged on the reduction pool is used for preparing a reducing agent in the storage tank 2, and if the sewage contains trivalent arsenic, H is added into the oxidation pool2O2With ferrous ions, oxidizing them into pentavalent arsenic for subsequent treatment; or reducing agents such as sodium metabisulfite or ferrous iron and the like are added into the reduction tank to reduce the hexavalent chromium with high toxicity into trivalent chromium, and different agents are selected according to the treatment requirements and the actual process to treat the sewage polluted by various complex heavy metals; when the heavy metal content in the sewage is less, the sewage can directly enter the next link through the surpassing pipe 12, so that the treatment effect is ensured, and meanwhile, the medicament and the energy consumption are saved.
Get into the sewage of redox pond 4 gets into coagulation flocculation basin 6 after the medicament is handled, coagulation flocculation basin 6 is inside to be set up electric stirring device 5, prepares coagulant and flocculating agent in bin 2 through throwing the medicament, makes the granule that is difficult to deposit in the sewage polymerize each other and form the colloid, and under electric stirring device 5 slowly stirs, the increase of mutual adsorption volume not only can reduce the perception index of quality of water such as turbidity, colourity of sewage, can get rid of multiple poisonous and harmful pollutant again.
The electric stirring device 5 comprises a stirring shaft and stirring blades arranged on the stirring shaft, the stirring shaft is arranged along the vertical direction, a plurality of stirring blades are uniformly distributed on the stirring shaft at equal intervals and are parallel to each other, after flocs are fully condensed, the flocs enter the inclined plate sedimentation tank 9, and the stirring time is 1-30 minutes.
The upper portion sets up the swash plate 7 of slope in the swash plate sedimentation tank 9, and is a plurality of the swash plate 7 is parallel to each other, and 6 play water in the flocculation basin of coagulating sedimentation is at the mutual motion and with mud separation sediment when the swash plate 7, the swash plate has increased the sedimentation area of sedimentation tank to shorten settling time, made the sediment more high-efficient.
The floc after the coagulation is precipitated through the swash plate 7, and the supernatant after the precipitation flows in through the overflow mouth quartz sand filter 11, the swash plate 7 below sets up sludge discharge pipe 8, and the floc that condenses in the sewage passes through the sediment that the swash plate 7 precipitates is discharged to sludge treatment equipment from sludge discharge pipe 8.
The quartz sand filter material 10 is arranged in the quartz sand filter tank 11, the quartz sand filter material 10 is used as a filter medium, the water discharged from the inclined plate sedimentation tank 9 is filtered by the quartz sand filter material 10, residual suspended matters, organic matters, colloidal particles, partial heavy metal ions and the like in the water are effectively retained, and the effects of reducing the water turbidity and purifying the water quality are achieved.
After being filtered by the quartz sand filter material 10, the supernatant is judged whether to reach the standard according to the water quality data reflected by the real-time monitoring probe 17, and after the water quality reaches the standard, the supernatant enters leaching equipment or a backwashing pipeline; if the standard is not met, the wastewater enters an activated carbon filter tank 15 for advanced treatment.
A tail water outlet 16 is arranged on the activated carbon filter tank 15, and an activated carbon filter plate 15 is arranged in the activated carbon filter tank 15.
The purified water in the quartz sand filter 11 is monitored by an online real-time monitoring probe 17, the purified water is discharged through an overrunning pipe 12 after reaching the standard, the purified water enters a municipal pipe network or is leached by recycled soil, the effluent which does not reach the standard further enters a downstream activated carbon filter tank 15 for deep treatment, the real-time monitoring probe 17 is connected with a central control unit, the effluent is controlled according to a detection result, and the quartz sand filter material can be recycled and sustainably utilized.
The backwashing pipeline is used for feeding water from a water outlet of the quartz sand filter 11, discharging suspended matters from an overflow port, discharging and collecting the suspended matters through the inclined plate sedimentation tank 9, and transporting the concentrated suspended matters to the outside.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a heavy metal contaminated soil drip washing sewage integrate processing apparatus which characterized in that includes: the system comprises an adjusting tank, an oxidation-reduction tank, a coagulation-flocculation tank, an inclined plate sedimentation tank, a quartz sand filter tank, an activated carbon filter tank and a central control unit, wherein real-time monitoring probes are arranged in the adjusting tank, the oxidation-reduction tank, the coagulation-flocculation tank, the inclined plate sedimentation tank and the quartz sand filter tank, override pipes are arranged in the adjusting tank, the oxidation-reduction tank, the coagulation-flocculation tank, the inclined plate sedimentation tank and the quartz sand filter tank, medicament preparation storage tanks are arranged on the adjusting tank, the oxidation-reduction tank and the coagulation-flocculation tank, the medicament preparation storage tanks are used for setting the amount of input medicaments according to the real-time data of water quality fed back by the real-time monitoring probes, the adjusting tank is provided with a sewage inlet, the sewage generated by leaching remediation enters the adjusting tank from the sewage inlet, the sewage generated by leaching-remediation enters the oxidation-reduction tank through a lifting pump after passing through the adjusting tank or enters the, get into the sewage of redox pond gets into coagulation flocculation basin after the medicament is handled, the medicament includes oxidant and reductant, the inside electric stirring device that sets up of coagulation flocculation basin gets into the sewage of coagulation flocculation basin gets into the inclined plate sedimentation tank after hydraulic stirring, upper portion sets up the swash plate of slope in the inclined plate sedimentation tank, and the floc after the coagulation deposits through the swash plate, and the supernatant after the precipitation flows in through the overflow mouth quartz sand filter, the swash plate below sets up the mud pipe, and mud arranges to sludge treatment facilities, set up multistage filter material in the quartz sand filter, the supernatant is judged according to the quality of water data of the reflection of on-line real-time monitoring probe after the quartz sand filter material filters and is got into drip washing equipment, back flush pipeline or get into the active carbon filter jar, back flush pipeline's outlet through the quartz sand filter is intake, the washed suspended matters are discharged into the inclined plate sedimentation tank through the overflow port.
2. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein the adjusting tank, the oxidation and reduction tank, the coagulation and flocculation tank, the inclined plate sedimentation tank, the quartz sand filter tank and the activated carbon filter tank are sequentially arranged according to the sewage filtering treatment sequence.
3. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein different types of agents are stored in the agent preparation storage tank arranged on the adjusting tank, the oxidation-reduction tank and the coagulation-flocculation tank.
4. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein the sewage is judged to enter the redox pool or enter the coagulation flocculation pool through the overtaking pipe according to the water quality condition reflected by an internal online real-time monitoring probe after passing through the regulating pool.
5. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein the oxidant comprises H2O2Or concentrated nitric acid, alsoThe raw agent comprises sodium pyrosulfite or ferrous sulfate.
6. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein the electric stirring device comprises a stirring shaft and stirring blades arranged on the stirring shaft, the stirring shaft is arranged in a vertical direction, the stirring blades are uniformly distributed on the stirring shaft at equal intervals, and the stirring blades are parallel to each other.
7. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein the stirring time of the electric stirring device is 1-30 minutes.
8. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein a storage tank for storing coagulant and flocculant is prepared from a medicament of the coagulation and flocculation tank, and a heavy metal capturing agent adding device is further connected.
9. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to the claim 1, wherein the bottom sludge precipitated from the sewage through the inclined plate is discharged from the sludge discharge pipe to the sludge treatment device.
10. The integrated treatment device for the heavy metal contaminated soil leaching sewage according to claim 1, wherein two or three layers of filter materials are laid in the quartz sand filter, back flushing is performed at regular time, and the back flushing washing water is delivered to a front end regulating tank of equipment, if the water outlet of the quartz sand filter meets the reuse standard, the water outlet is recycled in a leaching treatment system, if the water outlet does not meet the reuse standard, the water inlet enters an activated carbon filter tank for treatment and is recycled after reaching the standard, and finally the water outlet is stored for reuse or is discharged to a municipal pipe network.
CN202011362682.2A 2020-11-27 2020-11-27 Integrated treatment device for leaching sewage from heavy metal contaminated soil Pending CN112645487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011362682.2A CN112645487A (en) 2020-11-27 2020-11-27 Integrated treatment device for leaching sewage from heavy metal contaminated soil

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Application Number Priority Date Filing Date Title
CN202011362682.2A CN112645487A (en) 2020-11-27 2020-11-27 Integrated treatment device for leaching sewage from heavy metal contaminated soil

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CN112645487A true CN112645487A (en) 2021-04-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114515469A (en) * 2022-04-21 2022-05-20 江苏士美机电装备有限公司 Clay filtering device for ceramics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114515469A (en) * 2022-04-21 2022-05-20 江苏士美机电装备有限公司 Clay filtering device for ceramics
CN114515469B (en) * 2022-04-21 2022-07-15 江苏士美机电装备有限公司 Filter equipment of clay for pottery

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