CN218421240U - Automatic back-blowing system device of filter press - Google Patents
Automatic back-blowing system device of filter press Download PDFInfo
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- CN218421240U CN218421240U CN202221536219.XU CN202221536219U CN218421240U CN 218421240 U CN218421240 U CN 218421240U CN 202221536219 U CN202221536219 U CN 202221536219U CN 218421240 U CN218421240 U CN 218421240U
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Abstract
The utility model relates to an automatic back-blowing system device of a filter press, which comprises a back-blowing unit, a filter-pressing liquid outlet unit, a liquid inlet unit, a filter-pressing unit and a DSC control unit; the filter-pressing liquid outlet unit comprises a first liquid outlet pipeline, a second liquid outlet pipeline and a third liquid outlet pipeline, the first liquid outlet pipeline, the second liquid outlet pipeline and the third liquid outlet pipeline are respectively and independently provided with a liquid outlet control valve, the back blowing unit is provided with a back blowing control valve, and the liquid inlet unit is provided with a liquid inlet control valve; and the DSC control unit is electrically connected with the back flushing unit, the liquid inlet unit, the filter pressing unit, the liquid outlet control valve, the back flushing control valve and the liquid inlet control valve. The system device changes the manual control mode of the back flushing system of the original multifunctional filter press, and achieves the purpose of automatic control through the control of the air inlet valve, the control of the liquid outlet valve and the setting and control of all parameters.
Description
Technical Field
The utility model relates to a filter-pressing system, concretely relates to automatic blowback system's device of pressure filter.
Background
At present, m-xylylenediamine is prepared by catalytic hydrogenation of m-phthalonitrile, and is widely applied to the chemical industry as an aromatic amide. The m-xylylenediamine is mainly used as an epoxy resin curing agent and can also be used as a fine chemical raw material. With the development of chemical industry and aerospace industry in China, the demand of m-xylylenediamine is increasing continuously. The m-phthalonitrile is a manufacturing intermediate of a high-efficiency, low-toxicity, broad-spectrum and low-residue protective bactericide, and the technical production of the m-phthalonitrile comprises an air compressor, a liquid ammonia vaporizer, an ammonia heater, a front-section preheater, a rear-section preheater, a fluidized bed, a material collector, a material collecting spraying device, a filter and a dryer;
for example, CN109761851A discloses a method for preparing isophthalonitrile, which comprises adding isophthalic acid into a cyanation reactor, and adding ethylmethylimidazole dihydrogen phosphate ionic liquid, wherein the amount of the ionic liquid is 15-50% of the volume of the isophthalic acid; introducing ammonia, and then reacting; after the reaction is finished, rectifying and purifying the m-phthalonitrile crude product to obtain the m-phthalonitrile. The ethyl methyl imidazole dihydrogen phosphate ionic liquid is used as a solvent and a catalyst in the process of preparing the isophthalonitrile by the cyanation of the isophthalic acid, compared with the prior art, the method has the advantages of easily obtained raw materials, simple operation, simple catalyst preparation and reaction temperature reduction.
CN107513026A discloses an automatic discharging process for dry-process collection of isophthalonitrile, which comprises the steps of cooling a mixed gas at an outlet of an oil cooler by a water cooler, feeding the cooled mixed gas into a dry collector, controlling the outlet temperature of the dry collector to be 85-135 ℃, separating out gaseous isophthalonitrile into a solid in the dry collector, crushing the isophthalonitrile, conveying the solid to a refining section, feeding a tail gas at the outlet of the dry collector into a wet collector, feeding sprayed isophthalonitrile slurry into a pulping kettle, conveying the suspended matter slurry in the pulping kettle to a filter press by a pulping pump, filtering, drying filter residues to obtain a semi-finished product, putting the filtrate into a production system for use, and feeding the tail gas at the outlet of the wet collector into a tail gas incineration device for treatment. Compared with the prior art, the utility model has the advantages of improve the entrapment rate, realize the continuous ejection of compact, reduce workman's intensity of labour, can improve the site work environment moreover, reduce waste water production volume.
CN111346469A discloses an isophthalonitrile wet-method trapping device, which is provided with a first monomer structure and a second monomer structure comprising a plurality of independent chambers connected in parallel, so that separation of a gas phase inlet and a gas phase outlet can be ensured, and the heat exchange area and the equipment strength are increased; when the device is used for carrying out wet-process trapping of isophthalonitrile, the continuous operation of the whole trapping process in a closed state can be realized, the trapping efficiency is improved, the residual rate of isophthalonitrile products in the tail gas synthesized by isophthalonitrile can be not higher than 2.5wt%, the treatment pressure of subsequent spray-rinsing equipment is reduced, the amount of dinitrile separated out in a tail gas header pipe is reduced, the heat load of RTO (regenerative thermal oxidizer) of incineration equipment is reduced, and the device has high industrial application value.
CN111440092A discloses a safe and automatic refining process of m-phthalonitrile, which comprises the following steps: adding the metered crude isophthalonitrile into a dissolving kettle by adopting vacuum feeding and a vacuum automatic conveying mode; heating, melting and distilling the crude isophthalonitrile, and controlling the temperature in a melting kettle to be 170-300 ℃; the melting is divided into two stages, the temperature of the first stage is controlled to be 170-250 ℃, and the temperature of the second stage is controlled to be 250-300 ℃; allowing the isophthalonitrile steam to enter a condenser through negative pressure to be condensed into liquid, and cooling to 160-170 ℃; the condensed liquid isophthalonitrile enters a receiving kettle and is subjected to heat preservation treatment for 1 to 2 hours at the temperature of between 160 and 185 ℃; directly entering a slicing machine through a potential difference for slicing; the refined m-phthalonitrile has the purity of 99.6-99.8%, low impurity content and high purity.
Use plate and frame filter among the current system promptly, filter the back plate frame and loosen the back, the scene produces harmful gas easily, furtherly, adopts the manual control mode among the whole filter-pressing operation of prior art, and control is accurate inadequately, makes the dispersion of filter-pressing in-process material easily, and filter-pressing process inefficiency, the filter-pressing scheduling problem thoroughly.
SUMMERY OF THE UTILITY MODEL
In view of the problem that exists among the prior art, the utility model aims to provide an automatic blowback system device of pressure filter, the system device changes the artifical manual control mode of original multi-functional pressure filter blowback system, reaches automatic control's purpose through setting up and control to admission valve control, play liquid valve control, each parameter.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an automatic back-blowing system device of a filter press, which comprises a back-blowing unit, a filter-pressing liquid outlet unit, a liquid inlet unit, a filter-pressing unit and a DSC control unit;
the filter pressing liquid outlet unit comprises a first liquid outlet pipeline, a second liquid outlet pipeline and a third liquid outlet pipeline, the first liquid outlet pipeline and the second liquid outlet pipeline are connected with an upper liquid outlet of the filter pressing unit in a parallel connection mode, the third liquid outlet pipeline is connected with a lower liquid outlet of the filter pressing unit, and the first liquid outlet pipeline, the second liquid outlet pipeline and the third liquid outlet pipeline are respectively and independently provided with a liquid outlet control valve;
the back flushing unit is connected with the first liquid outlet pipeline and the second liquid outlet pipeline and is provided with a back flushing control valve;
the liquid inlet unit is connected with a liquid inlet of the filter pressing unit and is provided with a liquid inlet control valve;
and the DSC control unit is electrically connected with the back flushing unit, the liquid inlet unit, the filter pressing unit, the liquid outlet control valve, the back flushing control valve and the liquid inlet control valve.
The utility model provides a system device has realized the automatic blowback of multi-functional pressure filter after the filter-pressing through redesign, has changed original multi-functional pressure filter manual control mode to the automatic settlement of blowback process. Meanwhile, the specific feeding control, the control of a pressing plate hydraulic system, the stirring lifting and material crushing control, the control of a discharge valve, the back flushing control and the back cleaning control are adopted, and the setting and the control of all parameters achieve the purpose of automatic control.
The utility model discloses in, be provided with the seventh valve on the first drain pipe way, be provided with the ninth valve on the second drain pipe way, be provided with the eleventh valve on the third drain pipe way.
As the utility model discloses preferred technical scheme, the blowback unit includes air compressor and air inlet pipeline, air compressor's compressed air export with air inlet pipeline's entry links to each other.
And the outlet of the air inlet pipeline is connected with the first liquid outlet pipeline and the second liquid outlet pipeline.
As the preferred technical scheme of the utility model, be provided with the blowback control valve on the intake pipe way.
The utility model discloses in, intake pipe has set gradually first valve and second valve along the gas flow direction on the road.
As the utility model discloses preferred technical scheme, the feed liquor unit is provided with feed liquor pump and inlet pipe way, the liquid outlet of feed liquor pump with the export of inlet pipe way links to each other.
And the outlet of the liquid inlet pipeline is connected with the liquid inlet of the filter pressing unit.
As the utility model discloses preferred technical scheme, be provided with into liquid control valve on the feed liquor pipeline.
The utility model discloses in, twelfth valve and thirteen valve have set gradually along the liquid flow direction on the feed liquor pipeline.
As the utility model discloses preferred technical scheme, the filter pressing unit includes the pressure filter.
As the utility model discloses preferred technical scheme, system's device still includes the cleaning unit, the cleaning unit's liquid outlet with first liquid outlet pipe way, second liquid outlet pipe way and third liquid outlet pipe way link to each other.
As the utility model discloses preferred technical scheme, the cleaning unit includes washing liquid pump and liquid outlet pipe way, the liquid outlet of washing liquid pump with the entry on washing liquid pipe way links to each other.
The cleaning liquid pipeline comprises a first cleaning liquid pipeline, a second cleaning liquid pipeline and a third cleaning liquid pipeline.
The utility model discloses in, the washing liquid pump front end is provided with filter equipment, the filter equipment front end is provided with the third valve, washing liquid pump liquid outlet is provided with the fourth valve, be provided with the fifth valve behind the fourth valve.
As the utility model discloses preferred technical scheme, first washing liquid pipeline with first play liquid pipeline links to each other, second washing liquid pipeline with the second goes out the liquid pipeline and links to each other, third washing liquid pipeline with the third goes out the liquid pipeline and links to each other.
The first cleaning liquid pipeline is provided with a first cleaning liquid control valve, the second cleaning liquid pipeline is provided with a second cleaning liquid control valve, and the third cleaning liquid pipeline is provided with a third cleaning liquid control valve.
The utility model discloses in, be provided with the sixth valve on the first washing liquid pipeline, second washing liquid pipeline is provided with the eighth valve, third washing liquid pipeline is provided with the tenth valve.
As the utility model discloses preferred technical scheme, go out liquid control valve, blowback control valve, advance liquid control valve, first scavenging solution control valve, second scavenging solution control valve and third scavenging solution control valve are pneumatic control valve independently respectively.
The utility model provides a concrete operation process is as follows when using for the system device:
and after the filter pressing is finished, starting the back blowing unit, setting a control flow in the DSC control unit, automatically opening the control valve, injecting air into the filter pressing unit to back blow the filter cake layer, and blowing out residual liquid in the filter pressing unit. The original manual control mode of the multifunctional filter press is changed, and the purpose of automatic control is achieved through the setting and control of all parameters of feeding control, pressing plate hydraulic system control, automatic back flushing system control, stirring lifting and material crushing control, discharge valve control and back flushing control.
The utility model discloses in, according to the production conditions of reality preset a feed liquor volume parameter in washing control system: lifting a pressure plate in the filter press to a set highest point position; the stirrer of the filter pressing surface is lowered to the set lowest point position; filtrate upper outlet valves (a seventh valve and a ninth valve) and a filtrate lower outlet valve (an eleventh valve) of the filter press are in an automatic opening state, namely the seventh valve and the ninth valve are in an opening state at the moment; after the filter pressing is finished, a liquid outlet valve (a seventh valve) on the second pipeline is automatically closed, a back-blowing valve (a second valve) is automatically opened, residual liquid between the pressing plate and the filter cake is blown out according to the set time, a liquid outlet valve (a ninth valve) on the fourth pipeline is automatically closed, and residual liquid is pressed out from a lower liquid outlet valve by compressed gas.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model provides a system device has realized the automatic washing of multi-functional pressure filter after the filter-pressing through redesign, has changed the artifical manual control mode of original multi-functional pressure filter to the mechanized settlement of washing process. Meanwhile, the purpose of automatic control is achieved by adopting specific feeding control, pressure plate hydraulic system control, stirring lifting and material crushing control, discharge valve control and back washing control and setting and controlling all parameters.
Drawings
FIG. 1 is a schematic view of an automatic back-flushing system for filter presses provided in this example 2.
In the figure: 1-a first valve, 2-a second valve, 3-a third valve, 4-a fourth valve, 5-a fifth valve, 6-a sixth valve, 7-a seventh valve, 8-an eighth valve, 9-a ninth valve, 10-a tenth valve, 11-an eleventh valve, 12-a tenth valve, 13-a tenth valve, an A-air compressor, a B-filtering device, a C-cleaning liquid pump, a D-liquid inlet pump and an E filter press.
The present invention will be described in further detail below. However, the following examples are only simple examples of the present invention, and do not represent or limit the scope of the present invention, which is defined by the appended claims.
Detailed Description
To better illustrate the present invention, facilitating the understanding of the technical solutions of the present invention, typical but not limiting embodiments of the present invention are as follows:
example 1
The embodiment provides an automatic back-flushing system device of a filter press, which comprises a back-flushing unit, a filter-pressing liquid outlet unit, a liquid inlet unit, a filter-pressing unit and a DSC (differential pressure controller) control unit;
the filter pressing liquid outlet unit comprises a first liquid outlet pipeline, a second liquid outlet pipeline and a third liquid outlet pipeline, the first liquid outlet pipeline and the second liquid outlet pipeline are connected with an upper liquid outlet of the filter pressing unit in a parallel connection mode, the third liquid outlet pipeline is connected with a lower liquid outlet of the filter pressing unit, and the first liquid outlet pipeline, the second liquid outlet pipeline and the third liquid outlet pipeline are respectively and independently provided with a liquid outlet control valve;
the back flushing unit is connected with the first liquid outlet pipeline and the second liquid outlet pipeline and is provided with a back flushing control valve;
the liquid inlet unit is connected with a liquid inlet of the filter pressing unit and is provided with a liquid inlet control valve;
and the DSC control unit is electrically connected with the back flushing unit, the liquid inlet unit, the filter pressing unit, the liquid outlet control valve, the back flushing control valve and the liquid inlet control valve.
Example 2
The embodiment provides an automatic back-blowing system device of a filter press, as shown in fig. 1, the system device comprises a back-blowing unit, a filter-pressing liquid outlet unit, a liquid inlet unit, a filter-pressing unit and a DSC control unit;
the filter pressing liquid outlet unit comprises a first liquid outlet pipeline, a second liquid outlet pipeline and a third liquid outlet pipeline, the first liquid outlet pipeline and the second liquid outlet pipeline are connected with an upper liquid outlet of the filter pressing unit in a parallel connection mode, the third liquid outlet pipeline is connected with a lower liquid outlet of the filter pressing unit, and the first liquid outlet pipeline, the second liquid outlet pipeline and the third liquid outlet pipeline are respectively and independently provided with a liquid outlet control valve;
the back flushing unit is connected with the first liquid outlet pipeline and the second liquid outlet pipeline and is provided with a back flushing control valve;
the liquid inlet unit is connected with a liquid inlet of the filter pressing unit and is provided with a liquid inlet control valve;
the DSC control unit is electrically connected with the back flushing unit, the liquid inlet unit, the filter pressing unit, the liquid outlet control valve, the back flushing control valve and the liquid inlet control valve;
a first valve 1 and a second valve 2 are sequentially arranged on the gas inlet pipeline along the gas flowing direction;
the back blowing unit comprises an air compressor A and an air inlet pipeline, and a compressed air outlet of the air compressor A is connected with an inlet of the air inlet pipeline;
an outlet of the air inlet pipeline is connected with the first liquid outlet pipeline and the second liquid outlet pipeline;
a first valve 1 and a second valve 2 are sequentially arranged on the gas inlet pipeline along the gas flowing direction;
a seventh valve 7 is arranged on the first liquid outlet pipeline, a ninth valve 9 is arranged on the second liquid outlet pipeline, and an eleventh valve 11 is arranged on the third liquid outlet pipeline;
the liquid inlet unit is provided with a liquid inlet pump D and a liquid inlet pipeline, and a liquid outlet of the liquid inlet pump D is connected with an outlet of the liquid inlet pipeline;
the outlet of the liquid inlet pipeline is connected with the liquid inlet of the filter pressing unit;
a tenth valve 12 and a thirteenth valve 13 are sequentially arranged on the liquid inlet pipeline along the liquid flowing direction;
the filter pressing unit is a filter press E;
the system device also comprises a cleaning unit, wherein a liquid outlet of the cleaning unit is connected with the first liquid outlet pipeline, the second liquid outlet pipeline and the third liquid outlet pipeline;
the cleaning unit comprises a cleaning liquid pump C and a liquid outlet pipeline, and a liquid outlet of the cleaning liquid pump C is connected with an inlet of the cleaning liquid pipeline;
a filtering device B is arranged at the front end of the cleaning liquid pump C, a third valve 3 is arranged at the front end of the filtering device B, a fourth valve 4 is arranged at the liquid outlet of the cleaning liquid pump, and a fifth valve 5 is arranged behind the fourth valve 4;
the cleaning liquid pipeline comprises a first cleaning liquid pipeline, a second cleaning liquid pipeline and a third cleaning liquid pipeline;
the first cleaning liquid pipeline is connected with the first liquid outlet pipeline, the second cleaning liquid pipeline is connected with the second liquid outlet pipeline, and the third cleaning liquid pipeline is connected with the third liquid outlet pipeline;
a sixth valve 6 is arranged on the first cleaning liquid pipeline, an eighth valve 8 is arranged on the second cleaning liquid pipeline, and a tenth valve 10 is arranged on the third cleaning liquid pipeline.
Application example
The system device provided by embodiment 2 is adopted to reversely clean the filter press, specifically, each time of backwashing sets the water inlet time of the third cleaning liquid pipeline for 3 minutes according to time, then the water inlet valve of the first cleaning liquid pipeline is opened, the water inlet valve of the third cleaning liquid pipeline is closed and kept for 1.5 minutes, the water inlet valve of the second cleaning liquid pipeline is opened and the water inlet valve of the third cleaning liquid pipeline is closed and kept for 1.5 minutes, the water inlet amount of a single batch is kept at 0.5 cubic meter, the filter screen in the filter press is ensured to be completely washed once, the processing capacity of the filter press is improved, the average water processing amount per hour is only 8 cubic meters when the filter screen is not washed, and the average water processing amount per hour is 15 cubic meters after washing.
According to the above embodiment and application example, the system device provided by the utility model realizes through redesign that the automation of multi-functional pressure filter after the filter-pressing washes, has changed original multi-functional pressure filter manual control mode through the mechanized settlement to washing process. Meanwhile, the purpose of automatic control is achieved by adopting specific feeding control, pressure plate hydraulic system control, stirring lifting and material crushing control, discharge valve control and back washing control and setting and controlling all parameters.
The present invention is not limited to the above detailed structural features, and the present invention is not meant to be limited to the above detailed structural features, and the present invention can be implemented only by relying on the above detailed structural features. It should be clear to those skilled in the art that any modifications to the present invention, to the equivalent replacement of selected parts and the addition of auxiliary parts, the selection of specific modes, etc., all fall within the scope of protection and disclosure of the present invention.
The above detailed description describes the preferred embodiments of the present invention, however, the present invention is not limited to the specific details of the above embodiments, and the technical concept of the present invention can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (10)
1. An automatic back-flushing system device of a filter press is characterized by comprising a back-flushing unit, a filter-pressing liquid outlet unit, a liquid inlet unit, a filter-pressing unit and a DSC control unit;
the filter pressing liquid outlet unit comprises a first liquid outlet pipeline, a second liquid outlet pipeline and a third liquid outlet pipeline, the first liquid outlet pipeline and the second liquid outlet pipeline are connected with an upper liquid outlet of the filter pressing unit in a parallel connection mode, the third liquid outlet pipeline is connected with a lower liquid outlet of the filter pressing unit, and the first liquid outlet pipeline, the second liquid outlet pipeline and the third liquid outlet pipeline are respectively and independently provided with a liquid outlet control valve;
the back flushing unit is connected with the first liquid outlet pipeline and the second liquid outlet pipeline and is provided with a back flushing control valve;
the liquid inlet unit is connected with a liquid inlet of the filter pressing unit and is provided with a liquid inlet control valve;
and the DSC control unit is electrically connected with the back flushing unit, the liquid inlet unit, the filter pressing unit, the liquid outlet control valve, the back flushing control valve and the liquid inlet control valve.
2. The system device of claim 1, wherein the blowback unit comprises an air compressor and an air inlet pipeline, and a compressed air outlet of the air compressor is connected with an inlet of the air inlet pipeline;
and the outlet of the air inlet pipeline is connected with the first liquid outlet pipeline and the second liquid outlet pipeline.
3. The system device of claim 2, wherein a blowback control valve is disposed on the intake line.
4. The system device as claimed in claim 1, wherein the liquid inlet unit is provided with a liquid inlet pump and a liquid inlet pipeline, and a liquid outlet of the liquid inlet pump is connected with an outlet of the liquid inlet pipeline;
and the outlet of the liquid inlet pipeline is connected with the liquid inlet of the filter pressing unit.
5. The system device as claimed in claim 4, wherein a liquid inlet control valve is disposed on the liquid inlet pipeline.
6. The system-assembly of claim 1, wherein the pressure filtration unit comprises a filter press.
7. The system-device of claim 1, further comprising a cleaning unit, wherein the cleaning unit has a liquid outlet connected to the first liquid outlet pipe, the second liquid outlet pipe, and the third liquid outlet pipe.
8. The system device of claim 7, wherein the cleaning unit comprises a cleaning liquid pump and a liquid outlet pipeline, and the liquid outlet of the cleaning liquid pump is connected with the inlet of the cleaning liquid pipeline;
the cleaning liquid pipeline comprises a first cleaning liquid pipeline, a second cleaning liquid pipeline and a third cleaning liquid pipeline.
9. The system device as claimed in claim 8, wherein the first cleaning liquid pipeline is connected to the first liquid outlet pipeline, the second cleaning liquid pipeline is connected to the second liquid outlet pipeline, and the third cleaning liquid pipeline is connected to the third liquid outlet pipeline;
the first cleaning liquid pipeline is provided with a first cleaning liquid control valve, the second cleaning liquid pipeline is provided with a second cleaning liquid control valve, and the third cleaning liquid pipeline is provided with a third cleaning liquid control valve.
10. The system-device of any one of claims 1-9, wherein the liquid outlet control valve, the back-flushing control valve, the liquid inlet control valve, the first cleaning liquid control valve, the second cleaning liquid control valve, and the third cleaning liquid control valve are each independently a pneumatic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221536219.XU CN218421240U (en) | 2022-06-17 | 2022-06-17 | Automatic back-blowing system device of filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221536219.XU CN218421240U (en) | 2022-06-17 | 2022-06-17 | Automatic back-blowing system device of filter press |
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| Publication Number | Publication Date |
|---|---|
| CN218421240U true CN218421240U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221536219.XU Active CN218421240U (en) | 2022-06-17 | 2022-06-17 | Automatic back-blowing system device of filter press |
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| Country | Link |
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| CN (1) | CN218421240U (en) |
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2022
- 2022-06-17 CN CN202221536219.XU patent/CN218421240U/en active Active
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