Equipment for extracting acid-base liquid in storage tank

Abstract

The utility model provides equipment for extracting acid-base liquid in a storage tank, which belongs to the technical field of acid-base wastewater medium filtration, and comprises a storage tank, an extracting component, a filtering component and a pollution discharge component, the extracting component comprises a centrifugal pump, a water inlet of the centrifugal pump is communicated with the storage tank through an extracting pipe, and a water outlet of the filtering component is communicated with the pollution discharge component. A coarse filter cover is arranged at the joint of a water inlet of the centrifugal pump and the extraction pipe, the filter assembly comprises an upper cover, a tank body and a lower cover, the water inlet of the tank body is communicated with a water outlet of the centrifugal pump through a conveying pipe, a filter screen is arranged at the water outlet of the tank body, and the filter screen is connected with the tank body in a clamped mode through a buckle. The sewage discharging assembly comprises a sewage collecting frame arranged in the tank body, and the upper surface of the sewage collecting frame is fixedly connected with an annular scraping plate. When acid-base liquid in the storage tank is extracted, filter residues on the filter screen can be cleaned in time without shutdown, after the filter residues are cleaned, the filter residues are collected in a centralized mode, recycling is facilitated, working efficiency is improved, and shutdown maintenance time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to acid and alkali wastewater medium filtration technical field especially relates to a kind of equipment for extracting acidic and alkaline liquid in storage tank. BACKGROUND

[0002] Chemical, chemical fiber, acid making, electroplating, oil refining and metal plus plant pickling workshop can discharge acidic wastewater, papermaking, printing and dyeing, tanning, metal processing and other production processes can discharge alkaline wastewater, wastewater contains acid, base, and may contain acid salt and base salt and other acidic or alkaline inorganic and organic substances, etc., wastewater containing acid and alkali is randomly discharged not only can cause pollution and damage to environment, but also a kind of resource waste, therefore, acid and alkali wastewater is firstly considered to be recycled and utilized.

[0003] The existing liquid extraction equipment of storage tank is easy to be blocked by acid and alkali corrosion or particle accumulation when filtering acidic and alkaline liquid, so it needs to be stopped and disassembled for cleaning, which leads to the following problems: frequent shutdown reduces production efficiency and increases energy consumption; manual contact cleaning of filter residue has the risk of contacting acidic and alkaline liquid; valuable metals in filter residue cannot be recycled, causing resource waste. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems mentioned in the background art of prior art, and provides a kind of equipment for extracting acidic and alkaline liquid in storage tank.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of equipment for extracting acidic and alkaline liquid in storage tank, including storage tank, extraction assembly, filter assembly and blowdown assembly;

[0007] The extraction assembly includes centrifugal pump, the water inlet of the centrifugal pump is communicated with the storage tank by extraction pipe, the connection of the water inlet of the centrifugal pump and extraction pipe is equipped with coarse filter cover;

[0008] The filter assembly includes upper cover, tank body and lower cover, the upper cover, tank body and lower cover are detachably fixedly connected from top to bottom, the water inlet of the tank body is communicated with the water outlet of centrifugal pump by conveying pipe, the water outlet of the tank body is equipped with filter screen, the filter screen is clamped with tank body by buckle;

[0009] The blowdown assembly includes collection frame in tank body, the upper surface of the collection frame is fixedly connected with annular scraper.

[0010] Preferably, a driving assembly for driving the movement of the dirt collecting frame is arranged in the dirt collecting frame, the driving assembly comprises a feed screw rod rotatably connected to the bottom of the dirt collecting frame, the top end of the feed screw rod extends to the outside of the upper cover, a threaded sleeve is fixed to the top of the upper cover, the feed screw rod is threadedly connected with the threaded sleeve, and the top end of the feed screw rod is fixed with a first hand wheel.

[0011] Preferably, a differential pressure alarm is arranged at the water inlet of the filter assembly.

[0012] Preferably, flanges are arranged at the ends of the upper cover, the tank body and the lower cover, and the upper cover, the tank body and the lower cover are detachably connected from top to bottom through the flanges.

[0013] Preferably, the cross section of the scraper is a right triangle, and when the scraper cleans the filter screen, the filter residue slides along the inclined surface of the scraper and falls into the dirt collecting frame.

[0014] Preferably, filter holes are arranged on the side wall of the dirt collecting frame.

[0015] Preferably, a sewage outlet is arranged at the bottom of the lower cover, and a second hand wheel for controlling the opening and closing of the sewage outlet is arranged at the side of the sewage outlet.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. When the acid-base liquid in the extraction tank is extracted, the filter residue on the filter screen can be cleaned without stopping the machine.

[0018] 2. When the acid-base liquid in the extraction tank is extracted, the differential pressure alarm can alarm and remind the blocking condition, and the filter screen can be cleaned in time.

[0019] 3. After the filter residue is cleaned, the filter residue is collected and recycled. DRAWINGS

[0020] Figure 1 It is a whole device schematic view of the acid-base liquid extraction equipment proposed in the utility model;

[0021] Figure 2 It is a front view sectional view of the acid-base liquid extraction equipment proposed in the utility model;

[0022] Figure 3 It is a side view sectional view of the acid-base liquid extraction equipment proposed in the utility model;

[0023] Figure 4 It is a sectional view of the dirt collecting frame of the acid-base liquid extraction equipment proposed in the utility model.

[0024] In the figure: 1, storage tank; 2, extraction assembly; 3, filter assembly; 4, pollution discharge assembly; 5, differential pressure alarm; 21, extraction pipe; 22, coarse filter cover; 23, centrifugal pump; 24, output pipe; 31, upper cover; 32, tank body; 33, lower cover; 34, buckle; 35, filter screen; 36, pollution discharge port; 37, second hand wheel; 38, flange plate; 41, first hand wheel; 42, threaded sleeve; 43, feeding threaded rod; 44, pollution collection frame; 45, scraper plate. DETAILED DESCRIPTION

[0025] The technical solutions in the utility model are further described below in combination with the drawings and examples.

[0026] Referring to Figures 1-4 A device for extracting acidic or alkaline liquid in a storage tank, comprising a storage tank 1, an extraction assembly 2, a filter assembly 3 and a pollution discharge assembly 4. Specifically, the extraction assembly 2 comprises a centrifugal pump 23, the water inlet of the centrifugal pump 23 is communicated with the storage tank 1 through an extraction pipe 21, and a coarse filter cover 22 is arranged at the connection between the water inlet of the centrifugal pump 23 and the extraction pipe 21.

[0027] The filter assembly 3 comprises an upper cover 31, a tank body 32 and a lower cover 33, which are detachably and fixedly connected from top to bottom. The water inlet of the tank body 32 is communicated with the water outlet of the centrifugal pump 23 through a conveying pipe 24, the water outlet of the tank body 32 is provided with a filter screen 35, the filter screen 35 is clamped with the tank body 32 through a buckle 34, and a differential pressure alarm 5 is arranged at the water inlet of the filter assembly 3. When the filter screen 35 is blocked, the differential pressure alarm 5 will give an alarm to remind the staff to clean the filter screen 35 in time.

[0028] The pollution discharge assembly 4 comprises a pollution collection frame 44 arranged in the tank body, the upper surface of the pollution collection frame 44 is fixedly connected with an annular scraper plate 45, and a driving assembly for driving the pollution collection frame 44 to move is arranged in the pollution collection frame 44. The driving assembly comprises a feeding threaded rod 43 rotatably connected to the bottom of the pollution collection frame 44, the top end of the feeding threaded rod 43 extends to the outside of the upper cover 31, the upper cover 31 is fixedly provided with a threaded sleeve 42 at the top, the feeding threaded rod 43 is threadedly matched with the threaded sleeve 42, and the top end of the feeding threaded rod 43 is fixedly provided with a first hand wheel 41.

[0029] Specific work, centrifugal pump 23 starts to work, the acid and alkaline liquid from the tank 1 through the extraction pipe 21 into the coarse filter cover 22, through the centrifugal pump 23 into the delivery pipe 24, thereby into the tank body, through the filter screen 35 after filtering out, when the pressure difference alarm 5 alarm, through the rotation of the first hand wheel 41, with the first hand wheel 41 through the feed screw rod 43 fixed connection of the pollution collection frame 44 with the feed screw rod 43 through the threaded sleeve 42 upward spiral, drive the scraper 45 on the upper surface of the pollution collection frame 44 movement, scrape the filter residue on the surface of the filter screen 35, the tangential force generated by the rotation of the scraper 45 can more effectively peel off the filter residue attached to the filter screen 35, the filter residue peeling off along the slope of the scraper 45 falls into the pollution collection frame 44 storage, when the filter residue storage to a certain extent, open the upper cover 31, the filter residue in the pollution collection frame 44 is concentrated, reduces the frequency of replacing filter plate and processing filter residue, reduces the number of parking, improves the work efficiency, opens the sewage outlet 36 after the work to discharge sewage.

[0030] The utility model can be described by the following operation mode to explain its function principle:

[0031] When working, the centrifugal pump 23 is started, the centrifugal pump 23 starts to work, the acid and alkaline liquid from the tank 1 through the extraction pipe 21 into the coarse filter cover 22, then the liquid through the centrifugal pump 23 into the delivery pipe 24 thereby into the tank body, finally through the filter screen 35 after filtering out;

[0032] When the pressure difference alarm 5 alarm, through the rotation of the first hand wheel 41, with the first hand wheel 41 through the feed screw rod 43 fixed pollution collection frame 44 with the feed screw rod 43 through the threaded sleeve 42 upward spiral, drive the scraper 45 on the upper surface of the pollution collection frame 44 movement, scrape the filter residue on the surface of the filter screen 35, the tangential force generated by the rotation of the scraper 45 can more effectively peel off the filter residue attached to the filter screen 35, the filter residue peeling off along the slope of the scraper 45 falls into the pollution collection frame 44 storage, the utility model can find the filter screen blockage problem in time without stopping the extraction of the acid and alkaline liquid in the tank, clean the filter screen in time, improve the work efficiency, reduce the downtime maintenance time;

[0033] After the extraction work is finished, the centrifugal pump 23 is closed, the first hand wheel 41 is rotated to clean the filter screen 35, when the pollution collection frame 44 moves to the upper cover 31 part, the upper cover 31 is removed, the pollution collection frame 41 is cleaned, then the second hand wheel 37 is rotated to open the sewage outlet 36, and the residual liquid in the tank body 32 is discharged.

[0034] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A device for extracting acidic or alkaline liquids from a storage tank, characterized in that, The application relates to a water storage and filtration device, which comprises a storage tank (1), a pumping assembly (2), a filtering assembly (3) and a pollution discharge assembly (4). The pumping assembly (2) comprises a centrifugal pump (23), the water inlet of the centrifugal pump (23) is communicated with the storage tank (1) through a pumping pipe (21), and a coarse filter cover (22) is arranged at the connection position of the water inlet of the centrifugal pump (23) and the pumping pipe (21). The filtering assembly (3) comprises an upper cover (31), a tank body (32) and a lower cover (33), the upper cover (31), the tank body (32) and the lower cover (33) are detachably fixedly connected from top to bottom, the water inlet of the tank body (32) is communicated with the water outlet of the centrifugal pump (23) through a conveying pipe (24), a filter screen (35) is arranged at the water outlet of the tank body (32), and the filter screen (35) is clamped with the tank body (32) through a buckle (34). The pollution discharge assembly (4) comprises a pollution collecting frame (44) arranged in the tank body, and the upper surface of the pollution collecting frame (44) is fixedly connected with an annular scraper (45).

2. The apparatus according to claim 1, wherein The pollution collecting frame (44) is provided with a driving assembly for driving the pollution collecting frame (44) to move, the driving assembly comprises a feeding threaded rod (43) rotatably connected to the bottom of the pollution collecting frame (44), the top end of the feeding threaded rod (43) extends to the outside of the upper cover (31), a threaded sleeve (42) is fixed to the top of the upper cover (31), the feeding threaded rod (43) is in threaded cooperation with the threaded sleeve (42), and a first hand wheel (41) is fixed to the top end of the feeding threaded rod (43).

3. The apparatus according to claim 1, wherein A differential pressure alarm (5) is arranged at the water inlet of the filtering assembly (3).

4. The apparatus according to claim 1, wherein Flanges (38) are fixed to the ends of the upper cover (31), the tank body (32) and the lower cover (33), and the upper cover (31), the tank body (32) and the lower cover (33) are detachably fixedly connected from top to bottom through the flanges (38).

5. The apparatus of claim 1, wherein the apparatus further comprises a pump. The scraper (45) is in the shape of a right-angled triangle, and when the scraper (45) cleans the filter screen (35), filter residues slide along the inclined surface of the scraper (45) and fall into the pollution collecting frame (44).

6. The apparatus of claim 1, wherein the apparatus further comprises a pump. Filter holes are arranged on the side wall of the pollution collecting frame (44).

7. The apparatus of claim 1, wherein the apparatus further comprises a pump. A pollution discharge opening (36) is arranged at the bottom of the lower cover (33), a second hand wheel (37) for controlling the opening and closing of the pollution discharge opening (36) is arranged on the side of the pollution discharge opening (36).

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