CN110755920A - Method for preventing large particles from blocking pump and pipeline in plate-and-frame filter cake wet transportation process - Google Patents

Method for preventing large particles from blocking pump and pipeline in plate-and-frame filter cake wet transportation process Download PDF

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Publication number
CN110755920A
CN110755920A CN201911159017.0A CN201911159017A CN110755920A CN 110755920 A CN110755920 A CN 110755920A CN 201911159017 A CN201911159017 A CN 201911159017A CN 110755920 A CN110755920 A CN 110755920A
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CN
China
Prior art keywords
size mixing
pump
mixing tank
plate
conical
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Pending
Application number
CN201911159017.0A
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Chinese (zh)
Inventor
韦仕朝
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Wengfu Group Co Ltd
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Wengfu Group Co Ltd
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Filing date
Publication date
Application filed by Wengfu Group Co Ltd filed Critical Wengfu Group Co Ltd
Priority to CN201911159017.0A priority Critical patent/CN110755920A/en
Publication of CN110755920A publication Critical patent/CN110755920A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/21—Plate and frame presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/30—Feeding devices ; Discharge devices
    • B01D25/305—Feeding devices ; Discharge devices for discharging filtrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 

Abstract

The invention discloses a method for preventing large particles from blocking a pump and a pipeline in a plate-frame filter cake wet-process transportation process, which is characterized in that a pump inlet connecting port is formed in the middle of a size mixing tank of an original plate-frame filter cake wet-process size mixing conveying device at a position aligned with an inner stirrer blade; a conical filter is arranged at the position where the pump inlet is connected with the size mixing tank body; the cone of the conical filter is arranged in the size mixing tank, and the cone tip is arranged in alignment with the stirrer; the flange at the lower part of the conical filter is clamped in the middle of a flange which is used for connecting a pump inlet pipe and a size mixing tank body. The method can effectively prevent large particles from directly entering the pump cavity and the pipeline to cause the blockage of the pump and the pipeline, improves the running rate of the pump, reduces the workload of manual cleaning, and further improves the production efficiency of the plate frame.

Description

Method for preventing large particles from blocking pump and pipeline in plate-and-frame filter cake wet transportation process
Technical Field
The invention relates to the field of plate-and-frame filter cake conveying, in particular to the field of wet conveying technology after repulping of a plate-and-frame filter cake.
Background
The plate frame filter cake conveying comprises dry conveying and wet conveying, wherein the wet conveying is mainly to convey the filter cake to a storage yard through a pump through a pipeline after the filter cake is subjected to size mixing through water or other liquid-phase media. Because of the particularity of the medium, sometimes, larger solid-phase particles exist in the size mixing process, and large-particle solids enter the centrifugal pump to cause the blockage of the pump and a pipeline, so that the continuous production operation is influenced. It is therefore necessary to separate the large particle solids before this.
At present, no scheme for effectively preventing large particles from blocking pumps and pipelines in the wet transportation process of the plate-frame filter cake exists in a Chinese patent database.
Disclosure of Invention
The invention aims to provide a method for preventing large particles from blocking a pump and a pipeline in a plate-frame filter cake wet transportation process so as to avoid the blockage of the pump and the pipeline in a solid-liquid mixture conveying process.
In order to realize the efficient operation of the pump and the pipeline and the continuous production of the plate frame, the inventor inspects the production field on the spot and combines the process requirements, the invention provides a method for effectively preventing large particles from blocking the pump and the pipeline, and the method is modified on the basis of a plate frame filter cake wet-process size mixing conveying device as follows:
Figure DEST_PATH_IMAGE002
a pump inlet connecting port is formed in the middle of the plate frame filter cake size mixing tank at a position aligned with the blades of the internal stirrer;
Figure DEST_PATH_IMAGE004
a conical filter is arranged at the position where the pump inlet is connected with the size mixing tank body;
Figure DEST_PATH_IMAGE006
the installation mode of the conical filter is as follows: the cone is arranged in the size mixing tank, and the cone tip is arranged in alignment with the stirrer;
Figure DEST_PATH_IMAGE008
the flange at the lower part of the conical filter is clamped in the middle of a flange which is used for connecting a pump inlet pipe and a size mixing tank body.
In the step 1 of the improvement, the size mixing tank is made of carbon steel material and lined with rubber, and then a carbon brick square tank or a stainless steel square tank is pasted; or a cylindrical groove with the internal part provided with the baffle plate, and the material requirement is the same as that of the square groove.
In the step 2, the conical filter is made of 904 stainless steel materials, and the thickness can be determined according to the stirring intensity;
in the step 3, the conical filter is mounted in a manner that the conical tip faces the inner part of the size mixing tank, and the total area of filter holes formed in the conical filter is larger than or equal to the cross-sectional area of the inlet pipe of the pump;
in step 4, the connection between the conical filter and other components must have a gasket capable of effectively sealing.
In the operation process of the invention, large solid particles filtered by the conical filter are always left in the tank, and due to the existence of the stirrer, the large solid particles are stirred again to leave the conical filter, are gradually reduced after being stirred for a long time, and are finally pumped away again through the filtering holes of the conical filter.
The invention has the beneficial effects that: effectively stop large granule thing and directly get into pump chamber and pipeline and cause the jam of pump and pipeline, promoted the operating rate of pump, reduced artifical clearance work load, further promoted the production efficiency of sheet frame.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-plate and frame filter press; 2-a size mixing tank; 3-a conical filter; 4-a blanking funnel; 5-pump.
Detailed Description
Example (b):
the invention is further described below with reference to the accompanying drawings.
The technology of the invention is adopted by a certain factory to carry out wet size mixing on a plate-frame filter cake, and the specific scheme is as follows:
Figure 128384DEST_PATH_IMAGE002
two discharging collecting hoppers are additionally arranged below the plate-and-frame filter press, the lower parts of the hoppers are connected with the top of the size mixing tank, so that filter cakes are prevented from splashing to influence the production environment, the hoppers enter the reslurry tank at two sides, a stirrer is arranged in the center of the tank and used for crushing and size mixing of the filter cakes, size mixing water can be directly supplemented into the tank, and water can also be flushed above the hoppers;
a connecting port of a pump is arranged at the middle lower part of the size mixing tank, and the pipe diameter is determined according to performance parameters of the pump;
Figure 84326DEST_PATH_IMAGE006
a conical filter is manufactured in the tank by 904 stainless steel, and the conical tip is aligned with the position of a blade of the stirrer;
④ the large granule solid that the conical filter filtered out is driven by the stirring rake and constantly rotates along with liquid in the groove, rubs breakage once more, finally reaches the size that can pass through the conical filter filtration pore, is carried to the storage yard by the pump.

Claims (5)

1. A method for preventing large particles from blocking a pump and a pipeline in a plate-frame filter cake wet transportation process is characterized in that the method is modified on the basis of an original plate-frame filter cake wet size mixing conveying device as follows:
Figure RE-692469DEST_PATH_IMAGE001
a pump inlet connecting port is formed in the middle of the plate frame filter cake size mixing tank at a position aligned with the blades of the internal stirrer;
Figure RE-875058DEST_PATH_IMAGE002
a conical filter is arranged at the position where the pump inlet is connected with the size mixing tank body;
Figure RE-481620DEST_PATH_IMAGE003
the installation mode of the conical filter is as follows: the cone is arranged in the size mixing tank, and the cone tip is arranged in alignment with the stirrer;
Figure RE-897820DEST_PATH_IMAGE004
method for manufacturing lower part of conical filterAnd the flange is clamped between a flange connecting the pump inlet pipe and the size mixing tank body.
2. The method of claim 1, wherein: the slurry mixing tank is a carbon steel lining rubber, and then a carbon brick square tank or a stainless steel square tank is pasted; or a cylindrical groove with the internal part provided with the baffle plate, and the material requirement is the same as that of the square groove.
3. The method of claim 1, wherein: the conical filter is 904 stainless steel.
4. The method of claim 1, wherein: the conical filter is installed in a mode that a conical tip faces the inner part of the size mixing tank, and the total area of filter holes formed in the conical filter is larger than or equal to the cross-sectional area of the pump inlet pipe.
5. The method of claim 1, wherein: the connection part of the conical filter and other parts is provided with a cushion which can play an effective sealing role.
CN201911159017.0A 2019-11-22 2019-11-22 Method for preventing large particles from blocking pump and pipeline in plate-and-frame filter cake wet transportation process Pending CN110755920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911159017.0A CN110755920A (en) 2019-11-22 2019-11-22 Method for preventing large particles from blocking pump and pipeline in plate-and-frame filter cake wet transportation process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911159017.0A CN110755920A (en) 2019-11-22 2019-11-22 Method for preventing large particles from blocking pump and pipeline in plate-and-frame filter cake wet transportation process

Publications (1)

Publication Number Publication Date
CN110755920A true CN110755920A (en) 2020-02-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN110755920A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113462893A (en) * 2021-07-22 2021-10-01 云南云铜锌业股份有限公司 Zinc powder wet-adding device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113462893A (en) * 2021-07-22 2021-10-01 云南云铜锌业股份有限公司 Zinc powder wet-adding device and method

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