CN211963371U - Super essential oil/grinding oil filtering equipment - Google Patents
Super essential oil/grinding oil filtering equipment Download PDFInfo
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- CN211963371U CN211963371U CN201921698074.1U CN201921698074U CN211963371U CN 211963371 U CN211963371 U CN 211963371U CN 201921698074 U CN201921698074 U CN 201921698074U CN 211963371 U CN211963371 U CN 211963371U
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Abstract
The utility model provides a super smart oily grinding oil filtration equipment. The utility model discloses an equipment includes: (a) a pre-coating device for pre-coating the filter aid with the filter element; and (b) a filtering device for filtering the super-refined oil/grinding oil by the filter element coated with the filter aid so as to obtain filtered super-refined oil/grinding oil; wherein, filter equipment with be the fluid intercommunication between the precoating device, the utility model discloses an equipment can obtain very good filter fineness to can greatly reduce consumptive material quantity, super essential oil/grinding oil loss and synthesize the operation cost.
Description
Technical Field
The utility model relates to an environmental protection technology field specifically, relates to super essential oil grinding oil filtration equipment.
Background
With the rapid development of metal processing towards high precision, the requirement on the super-essential oil/grinding oil used for super-precision and coarse grinding is higher and higher, and the super-essential oil/grinding oil of the bearing is an important guarantee for improving the processing precision of the super-precision and coarse grinding of the bearing. The bearing super-precision and coarse grinding machine plays the main roles of cooling, lubricating, rust prevention and cleaning, can effectively improve the surface quality of machined parts, and improves the product percent of pass.
The conventional super-essential oil/grinding oil filtering equipment is complex to operate, poor in automation degree and low in efficiency; or the volume is large, the filtering effect is poor, the consumption of the material is large, and the operation cost is high.
The equipment for filtering the super-essential oil/grinding oil in the current market mainly comprises two types: the vertical plate frame diatomite filter press is good at, planer-type diatomite filter press. However, the vertical plate-and-frame diatomite filter press has the defects of incapability of continuously operating, small treatment capacity, high consumption of filter cloth, frequent manual cleaning of the filter cloth, dirtiness and difficult cleaning, no preference of people for drying, and high oil content of filter residues after filtration. The gantry type diatomite filter press has the advantages of large equipment volume and poor filtering effect, the cleanliness of the filtered oil can only meet the production requirement of low-precision bearings, the production requirement of high-precision low-noise bearings cannot be met, and the oil content of filter residues is high.
Therefore, there is an urgent need in the art to develop a new method and apparatus that not only can ensure the cleanliness of the filtered oil, but also can regenerate the filter element, thereby prolonging the service life of the filter element, reducing the oil content of the filter residue, and reducing the generation of hazardous waste.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a not only can guarantee the cleanliness of oil after filtering, still can let the filter core regeneration to the life of extension filter core, and reduce filter residue oil content, reduce the new method and the equipment of the production of danger waste.
The utility model discloses a first aspect provides a super smart oily grinding oil filtration equipment, include:
(a) a pre-coating device for pre-coating the filter aid with the filter element;
(b) the filtering device is used for filtering the superfine oil/grinding oil by the filter element coated with the filter aid so as to obtain filtered superfine oil/grinding oil;
wherein the filter device and the priming device are in fluid communication.
In another preferred example, the filtering device and the pre-coating device are communicated through a pipeline.
In another preferred example, one end of the filtering device is connected with the precoating device through a precoating pump.
In another preferred example, the other end of the filtering device is directly connected with the precoating device.
In another preferred embodiment, the filtering device is connected with the stock solution tank through a filtering pump.
In another preferred embodiment, the filter device is connected to the reservoir by a pneumatic valve QF 6.
In another preferred embodiment, the filter device is provided with a back-flushing air source device for cleaning, draining and back-flushing regeneration after the filter element coated with the filter aid is filtered.
In another preferred embodiment, the filtering device is directly connected with the liquid purifying tank.
In another preferred embodiment, the filter device is connected to the clean liquid tank by a pneumatic valve QF 2.
In another preferred example, the pre-coating device is provided with a diatomite metering hopper for ensuring that the weight of the diatomite added each time is consistent.
In another preferred embodiment, the pre-coating device is directly connected to the filtering device.
In another preferred example, the pre-coating device is directly connected with the liquid purifying tank.
In another preferred embodiment, the pre-coating device is connected with the clean liquid tank through a pneumatic valve QF2 and a pneumatic valve QF 4.
In another preferred embodiment, the priming device is connected to the filtering device by means of a pneumatic valve QF 4.
In another preferred embodiment, the precoating device is connected to the filtration device by a precoating pump.
In another preferred example, the precoating liquid is circulated between the filter device and the precoating device.
In another preferred example, the apparatus further includes:
(c) and the filter element regeneration device is used for cleaning, draining and back flushing regeneration after the filter element coated with the filter aid is filtered, so that the next filtering stage is started.
In another preferred example, the filter element regeneration device comprises a back-blowing air supply device, a filtering device and a pneumatic valve QF 6.
In another preferred example, the filter element regeneration device is directly connected with the reservoir.
In another preferred example, the filter element regeneration device is directly connected with the liquid purifying tank.
In another preferred example, the filter regeneration device is connected with the clean liquid tank through a pneumatic valve QF 2.
In another preferred example, the apparatus further includes: (d) and the automatic slag discharging device is used for carrying out dry slag discharging collection on filter residues after the ultra-precision oil/grinding oil is filtered by the filter element coated with the filter aid.
In another preferred example, the automatic slag discharging device comprises a hydraulic device, an exhaust valve, a dry slag valve and a positive pressure tank.
In another preferred example, one end of the automatic slag discharging device is connected with the liquid storage tank through a positive pressure pump.
In another preferred example, the other end of the automatic slag discharging device is directly connected with the liquid storage tank.
In another preferred example, the automatic slag discharging device is directly connected with the stock solution tank.
In another preferred example, the super-refined oil/grinding oil is super-refined oil/grinding oil for super-precision and coarse grinding production processes of bearings and automobile parts.
In another preferred embodiment, the filter aid is selected from the group consisting of: diatomaceous earth, lignocellulose, perlite, talc, activated clay, or combinations thereof.
In another preferred embodiment, the filter element is made of one or more materials selected from the group consisting of: wood pulp paper, PET non-woven fabric, PP, PE/PA and terylene.
In another preferred embodiment, the weight of the material of the filter element is 30g-300g/m2Preferably, 50g to 200g/m2More preferably, 70g to 150g/m2。
In another preferred embodiment, the weight of the filter element is 0.3-20 kg/count, preferably 0.5-15 kg/count, more preferably 0.8-10 kg/count.
In another preferred embodiment, the length of the filter element is 200 mm and 2000mm, preferably 400 mm and 1500mm, and more preferably 600 mm and 1000 mm.
In another preferred embodiment, the filter element is selected from the group consisting of: a side filter element, a PE/PA sintered tube filter element, a candle filter element, or a combination thereof.
In another preferred embodiment, the particle size of the filter aid is 10-500 mesh, preferably 50-400 mesh, more preferably 100-300 mesh.
In another preferred embodiment, the thickness of the filter aid is from 0.08 to 40mm, preferably from 0.5 to 20mm, more preferably from 1 to 10 mm.
In another preferred embodiment, the content of said filter aid is from 10 to 200 g/liter, preferably from 20 to 100 g/liter, more preferably from 30 to 60 g/liter.
In another preferred embodiment, the content of said filter aid is from 30 to 50000 g/vessel, preferably from 50 to 30000 g/vessel, more preferably from 100 to 15000 g/vessel.
In another preferred embodiment, the material of the filter cloth in the filter element is selected from the following group: nylon monofilament, polypropylene, polyester, or combinations thereof.
In another preferred embodiment, the aperture of the filter element is 20-600 mesh, preferably 50-400 mesh, more preferably 100-300 mesh.
In another preferred embodiment, the device has one or more characteristics selected from the group consisting of:
(a) the cleanliness of the super essential oil/grinding oil is 10-30 μm, preferably, 5-20 μm, more preferably, 1-10 μm; the cleaning agent is suitable for production under different working conditions, and the cleanliness is improved by 100-200% compared with similar equipment;
(b) the usage amount of the filter aid is reduced by 2-5 times compared with the usage amount of the filter aid in the similar equipment;
(c) the oil content ratio of the filter residue (the weight ratio of the filter aid to the super-essential oil/grinding oil is 1:0.8, preferably 1: 0.5;
(d) the filter element can be regenerated, the service life is prolonged by 20-40 times, and the operation cost is greatly reduced.
It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.
Drawings
Fig. 1 shows a working flow chart of a super-fine oil centralized filtering system.
Figure 2 shows a schematic of the filter element and diatomaceous earth.
Detailed Description
The inventor has developed a super smart oil grinding oil filtration equipment for the first time through extensive and intensive research, the utility model discloses an equipment contains precoating device and filter equipment, specific filter aid in the device of precoating can precoating the utility model discloses a filter core, and use the utility model discloses a filter equipment filters super smart oil grinding oil to obtain the super smart oil grinding oil that the cleanliness is very high, and the filter residue oil content is very low (for example, the weight ratio of filter aid and super smart oil grinding oil is 1: 0.5), and the filter core can be regenerated simultaneously, and life has prolonged 20-40 times, greatly reduced the cost. The utility model discloses a filter equipment with be the fluid intercommunication between the device of precoating, also can be connected filter equipment with the device of precoating through the pump of precoating. On this basis, the utility model discloses has been accomplished.
Super essential oil/grinding oil
The utility model discloses in, super smart oil/grinding oil is formed by multiple additive complex such as low viscous mineral base oil, kerosene, antiwear agent, antirust agent.
Super essential oil/grinding oil filtering equipment
The utility model discloses in, the utility model provides a super smart oily grinding oil filtration equipment, include:
(a) a pre-coating device for pre-coating the filter aid with the filter element;
(b) and the filtering device is used for filtering the superfine oil/grinding oil by the filter element coated with the filter aid so as to obtain the filtered superfine oil/grinding oil.
Wherein the filter device and the priming device are in fluid communication.
In another preferred example, the filtering device and the pre-coating device are communicated through a pipeline.
In another preferred embodiment, the filter device is connected to the precoating device by a precoating pump.
In another preferred example, the precoating liquid is circulated between the filter device and the precoating device.
In a preferred embodiment, the apparatus further comprises:
(c) and the filter element regeneration device is used for cleaning, draining and back flushing regeneration after the filter element coated with the filter aid is filtered, so that the next filtering stage is started.
In another preferred embodiment, the filter element regeneration device is directly connected with the reservoir.
In a preferred embodiment, the apparatus further comprises:
(d) and the automatic slag discharging device is used for carrying out dry slag discharging collection on filter residues after the ultra-precision oil/grinding oil is filtered by the filter element coated with the filter aid.
In another preferred example, the automatic slag discharging device is directly connected with the stock solution tank.
In a preferred embodiment, the working principle of the super-refined oil/grinding oil filtering device of the present invention is shown in fig. 1.
The utility model discloses in, super essential oil grinding oil filtration equipment divide into four stages: precoating, filtering, cleaning and draining, back blowing and regeneration, positive pressure, dry slag and slag discharge and collection.
First, precoating
Filling the pre-coating tank with clean liquid.
② starting stirring.
And thirdly, starting the diatomite metering device.
Fourthly, the liquid is stirred in the pre-coating tank to be evenly mixed with the diatomite and the oil material.
And fifthly, starting the pneumatic valve and the precoating oil pump to circulate the precoating liquid between the filter and the precoating tank. A pre-coat time was set according to the data until the liquid was clear.
And sixthly, replenishing the liquid used in the pre-coating tank into the pre-coating tank in time through a floating ball valve.
Good effect and filtration
Firstly, after the precoating is finished, the system opens the pneumatic valve and the precoating oil pump. The liquid in the raw liquid tank enters the purified liquid tank after being treated by the filter element precoated with the diatomite.
Secondly, the flow of the liquid can be adjusted at this stage, the processing flow of the filter element to the liquid in unit time is controlled, and the pressure difference of the liquid to the filter element is adjusted, so that the damage of the filter element in the filtering process is minimum. Thus, the service life of the filter element can be prolonged. After the system sets and filters a certain time, the single tank can automatically clean, discharge liquid and back blow and regenerate.
Performing washing, liquid discharging and back blowing regeneration on the ground
Firstly, when the system reaches the preset time or pressure difference, cleaning and draining liquid and back flushing regeneration of the filter element are carried out synchronously.
And secondly, stopping the back-blowing air valve after cleaning and draining, back-blowing regeneration of the filter element and slag discharge time are finished, and closing the pneumatic valve liquid discharge valve.
And thirdly, discharging the liquid and filter residues in the filter into a liquid storage tank and a positive pressure tank, and enabling the liquid which is pressed out to flow back to the raw liquid tank.
Fourthly, positive pressure, dry slag and slag discharge collection are carried out.
Firstly, positive pressure:
and (3) the mixture of the drained liquid, the precoated diatomite and the captured oil lime flows back to the raw liquid tank through the filter cloth under the action of air pressure.
② dry slag:
and closing the F ball valve, and disconnecting the pipelines of the oil storage tank and the positive pressure tank. The dry slag gas valve was opened at a pressure of 0.2 MPa. And after 5 to 10 minutes, closing the dry slag air valve, opening an exhaust valve and emptying the air in the positive pressure tank.
Thirdly, automatically discharging slag and collecting:
and the cylinder valve is opened, the motor drives the chain wheel to take out the filter residue from the annular filter cloth in a rotary manner, and the filter residue falls into the receiving trolley, so that full-automatic operation is realized.
The utility model discloses a main advantage includes:
(1) the utility model discloses the filtering method that will filter core combination filter aid (like diatomaceous earth) precoating for the first time uses super precision and corase grind processing (automobile parts such as bearing), has obtained very showing filter effect.
(2) The utility model discloses a super smart oily grinding oil filtration equipment has the cleanliness height of degree of automation height, oil (can satisfy the bearing production of any requirement) characteristics.
(3) The utility model discloses a method can obtain high filtration precision, can guarantee the long-term steady operation of system, does not run native hourglass soil.
(4) The utility model discloses a super smart oily filtration equipment's area is 50% of equipment of the same kind.
(5) The utility model discloses can greatly reduce consumptive material quantity, oil loss and synthesize the operation cost.
The present invention will be further described with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
The utility model provides a super-fine oil/grinding oil filtering device, as shown in figure 1, comprising a pre-coating device, wherein the pre-coating device is used for pre-coating a filter element with a filter aid; the filter device is used for filtering the ultra-precision oil/grinding oil by the filter element coated with the filter aid so as to obtain filtered ultra-precision oil/grinding oil with high cleanliness;
wherein the filter device and the priming device are in fluid communication.
In a preferred embodiment, the filter device is connected to the precoating device by a precoating pump.
And, in the present invention, the precoating liquid circulates between the filtering device and the precoating device.
The utility model discloses in, the utility model discloses an equipment still includes the stoste groove, and the stoste groove passes through the filter pump and links to each other with filter equipment to obtain the super smart oil/grinding oil through filterable high cleanliness factor.
The utility model discloses a stoste groove still can link to each other with the malleation jar, and the purpose realizes sediment and oil separation, oil backward flow stoste groove in order to let filter residue and filter aid on the filter core behind the malleation jar.
The utility model discloses an equipment still includes the clean cistern, the clean cistern passes through clean oil pump and links to each other with user equipment (specifically refer to super smart machine grinding machine), and the purpose supplies clean super smart oil grinding oil for user equipment.
The utility model discloses a clean liquid groove can also link to each other with filter equipment for the clean super smart oil/grinding oil storage in clean liquid groove after filtering.
The utility model discloses an equipment still includes the reservoir, the reservoir passes through positive pressure pump and links to each other with the malleation jar for loop filter.
The utility model discloses in, the reservoir can also link to each other with filter equipment for store the dirty oil after the blowback.
In a preferred embodiment of the present invention, the implementation process of the device of the present invention is specifically as follows:
firstly, a pre-coating stage: injecting the clean liquid in the clean liquid tank into the pre-coating tank → starting the diatomite metering device → stirring the diatomite and the oil liquid to be uniform → starting the pneumatic valve and the pre-coating oil pump to ensure that the pre-coating liquid circulates between the filter and the pre-coating tank.
② a filtering stage: and opening the pneumatic valve and the filter pump to enable the liquid in the raw liquid tank to enter the purified liquid tank after being treated by the filter element precoated with the diatomite.
③ cleaning and regenerating stage: and discharging the liquid and filter residues in the filter into a liquid storage tank and a positive pressure tank, and enabling the liquid which is positively pressed to flow back to the raw liquid tank.
Fourthly, slag discharging stage: introducing air into the positive pressure tank → drying filter residue → opening an air cylinder valve, and driving a chain wheel by a motor to take the filter residue out from the annular filter cloth in a rotary manner → dropping the filter residue into a receiving trolley.
Furthermore, the utility model discloses in, the utility model discloses a super smart oil/grinding oil filtration equipment still can include filter core regenerating unit, filter core regenerating unit comprises blowback air supply equipment and pneumatic valve QF6 and filter equipment, right wash flowing back, blowback regeneration process as an organic whole after scribbling the filter core of filter aid and filtering to drop into the next filtration stage, filter core regenerating unit directly links to each other with the reservoir (if filter core regenerating unit contains QF6, then filter core regenerating unit should with reservoir lug connection).
The utility model discloses a super smart oil/grinding oil filtration equipment still can include automatic row's sediment device, automatic row's sediment device comprises hydraulic means, discharge valve, dry sediment valve and malleation jar, automatic row's sediment device be used for with the filter core that scribbles the filter aid carries out dry sediment to the filter residue after super smart oil/grinding oil filters and arranges the sediment and collect, arranges the sediment device automatically and directly links to each other with the stoste groove, and the effect realizes sediment and oil separation, oily backward flow stoste groove in order to let filter residue and the filter aid on the filter core behind the malleation jar.
The utility model discloses an among the super smart oil grinding oil filtration equipment, the schematic diagram of filter core and diatomaceous earth is shown in figure 2.
Wherein the filter core is an edge filter core made of PET non-woven fabric (110 g/m)2) The weight of the filter element is 1.04kg, the length of the filter element is 900mm, the aperture of the filter element is 5 microns, the inner side of the filter element is provided with a metal pore pipe for supporting the filter material to form a flow channel, the outer side of the filter element is pre-coated with a diatomite filter aid, the particle size of diatomite is 150 meshes, the thickness of a filter layer pre-coated on the filter element is 2mm, the pre-coating weight on the filter element is 50 g/count, and the total pre-coating amount of the diatomite is controlled to be 10 kg.
The utility model discloses a super smart oily/grinding oil filtration equipment can obtain very good filter effect, for example, the cleanliness of the super smart oily/grinding oil who obtains is 5um to the cleanliness improves 100% -200% than like equipment, and the use amount of diatomaceous earth reduces 2-5 times than like equipment; the oil content of filter residue is obviously reduced by 2-5 times compared with similar equipment; the service life of the filter element is prolonged by 20-40 times, and the operation cost is greatly reduced.
Furthermore, the utility model discloses a filtration equipment still has following performance, as shown in table 1:
TABLE 1 several common superfinishing/grinding oil filtration devices (50 m)3H) contrast parameter
The result shows, the utility model discloses a super smart oil grinding oil filtration equipment can obtain very good filter fineness to can greatly reduce consumptive material quantity, oil loss and comprehensive cost.
Example 2
The utility model discloses an among the super smart oil grinding oil filtration equipment, the filter core is the avris filter core of crossing, and the filter core material is wood pulp paper (70 g/m)2) The weight of the filter element is 1.25kg, the length of the filter element is 900mm, the aperture of the filter element is 1 mu m, the inner side of the filter element is provided with a metal pore pipe for supporting the filter material to form a flow channel, the outer side of the filter element is pre-coated with a diatomite filter aid, the particle size of diatomite is 100 meshes, the thickness of a filter layer pre-coated on the filter element is 1.5mm, the pre-coating weight on the filter element is 40g, and the total pre-coating amount of the diatomite is controlled to be 8 kg.
The utility model discloses a super smart oily/grinding oil filtration equipment can obtain very good filter effect, for example, the cleanliness of the super smart oily/grinding oil who obtains is 1um to the cleanliness improves 200% -300% than like equipment, and the use amount of diatomaceous earth reduces 2-3 times than like equipment; the oil content of filter residue is obviously reduced by 2-3 times compared with similar equipment; the service life of the filter element is prolonged by 20-30 times, and the operation cost is greatly reduced.
Example 3
The utility model discloses an among the super smart oil grinding oil filtration equipment, the filter core is PE pipe sintering filter core, and the material in the filter core is the PE pipe, and the weight of filter core is 0.42kg, and length is 910mm, and the aperture of filter core is 10 mu m, and the filter core outside scribbles the diatomaceous earth filter aid in advance, and wherein the particle size of diatomaceous earth is 200 meshes, and the filter bed thickness of precoating on the filter core is 3mm, and the weight of precoating on the filter core is 70g, and the total amount control of precoating of diatomaceous earth is at 14 kg.
The utility model discloses a super smart oily/grinding oil filtration equipment can obtain very good filter effect, for example, the cleanliness of the super smart oily/grinding oil who obtains is 10um to the cleanliness improves 50% -100% than like equipment, and the use amount of diatomaceous earth reduces 1-2 times than like equipment; the oil content of filter residue is obviously reduced and is reduced by 1-2 times compared with similar equipment; the service life of the filter element is prolonged by 10-20 times, and the operation cost is greatly reduced.
All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (9)
1. A super finish oil/grinding oil filtration apparatus comprising:
(a) a pre-coating device for pre-coating the filter aid with the filter element;
(b) the filtering device is used for filtering the superfine oil/grinding oil by the filter element coated with the filter aid so as to obtain filtered superfine oil/grinding oil;
wherein the filter device and the priming device are in fluid communication.
2. A filter plant according to claim 1, characterized in that one end of the filter means is connected to the precoating means by a precoating pump.
3. A filter apparatus according to claim 1, wherein the other end of the filter means is directly connected to the precoating means.
4. The filter apparatus of claim 1, wherein the filter device is provided with a back-blowing air source apparatus for cleaning, draining, and back-blowing regeneration of the filter element coated with the filter aid after filtration.
5. The filter apparatus of claim 1, wherein the precoating device is provided with a diatomaceous earth metering hopper for ensuring that the weight of diatomaceous earth added each time is consistent.
6. The filtration apparatus of claim 1, wherein the apparatus further comprises:
(c) and the filter element regeneration device is used for cleaning, draining and back flushing regeneration after the filter element coated with the filter aid is filtered, so that the next filtering stage is started.
7. The filter apparatus of claim 6, wherein said cartridge regeneration means comprises a blowback air supply, a filter apparatus, and a pneumatic valve QF 6.
8. The filtration apparatus of claim 1, wherein the apparatus further comprises: (d) and the automatic slag discharging device is used for carrying out dry slag discharging collection on filter residues after the ultra-precision oil/grinding oil is filtered by the filter element coated with the filter aid.
9. The filtration apparatus of claim 8, wherein the automatic slag discharge device comprises a hydraulic device, a vent valve, a dry slag valve, a positive pressure tank.
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| CN201921698074.1U CN211963371U (en) | 2019-10-11 | 2019-10-11 | Super essential oil/grinding oil filtering equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585802A (en) * | 2019-10-11 | 2019-12-20 | 安徽碧云过滤分离科技有限公司 | Super essential oil/grinding oil filtering equipment |
| CN114307360A (en) * | 2021-12-13 | 2022-04-12 | 宁夏恒生西夏王酒业有限公司 | Raw wine fining, clarifying and filtering equipment and using method |
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2019
- 2019-10-11 CN CN201921698074.1U patent/CN211963371U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585802A (en) * | 2019-10-11 | 2019-12-20 | 安徽碧云过滤分离科技有限公司 | Super essential oil/grinding oil filtering equipment |
| CN114307360A (en) * | 2021-12-13 | 2022-04-12 | 宁夏恒生西夏王酒业有限公司 | Raw wine fining, clarifying and filtering equipment and using method |
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