CN210473183U

CN210473183U - Filtering and impurity removing system for sludge containing heavy metals

Info

Publication number: CN210473183U
Application number: CN201920906211.XU
Authority: CN
Inventors: 林嫩好; 庞流; ***; 黄振浩
Original assignee: Huizhou Huiyang District LX Environmental Protection Co ltd
Current assignee: Huizhou Huiyang District LX Environmental Protection Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-05-08
Anticipated expiration: 2029-06-17

Abstract

The utility model provides a filtration edulcoration system that contains heavy metal mud, including the mud district of placing mud, carry out the flushing device that erodees to mud to and agitating unit, mud district and agitating unit between be equipped with the feed arrangement who communicates mud district and agitating unit, agitating unit on be equipped with and erode the discharge gate and retrieve the discharge gate, flushing device include the sluicing pipeline of being connected with the flushing discharge gate, the sluicing pipeline from erodeing the discharge gate and go out to connect gradually transfer pump, control valve and fire control bubble, the fire control bubble establish at mud district or feed arrangement side. The utility model discloses a compact structure, convenient operation is nimble, and sludge filtration edulcoration is effectual, the energy consumption is lower, is fit for extensive industrial production, and the sludge treatment cost is lower, can reduce system fault frequency simultaneously, reduces equipment area.

Description

Filtering and impurity removing system for sludge containing heavy metals

Technical Field

The utility model belongs to the sludge treatment field, specific theory especially relates to a filtration edulcoration system that contains heavy metal mud.

Background

The sludge containing heavy metals mainly comes from the surface treatment industry and the circuit board manufacturing industry, the wastewater containing heavy metals generated in the production process of a factory flows to the land to form the sludge containing heavy metals, and the sludge containing heavy metals has wide sources and different physical and chemical properties, so that the following problems exist in the treatment process:

1. the water content of the sludge is low and unstable, the sludge is in a loose sand shape or a hard block shape, and part of the sludge has viscosity, so that the conventional filtration and impurity removal equipment is easy to frequently block, and the equipment is difficult to continuously and stably treat the sludge;

2. impurities such as metal, wood block, stone, plastic and the like can be mixed in the sludge, and the sludge is corrosive, so that the equipment is easy to block and block after long-term operation, and the shaft sleeve in the conveying pump is seriously abraded, and the conditions of pressure relief, water leakage and the like occur;

3. the conventional filtering and impurity removing equipment needs manual feeding and shoveling, so that the labor cost is increased;

4. the sludge after impurity removal by filtration cannot completely remove smaller particle impurities, so that a crushing process is added, and the problems of material port blockage, dislocation and clamping of a rotating shaft and the like of the crusher often occur due to poor crushing effect of the crusher on impurities such as metal, wood blocks and the like, so that the equipment maintenance cost is increased;

5. the original treatment equipment is composed of a plurality of devices such as feeding, filtering, impurity removal, stirring and size mixing, the occupied area of the treatment equipment is large, the equipment is dispersed, the automation degree is low, and the energy consumption is high;

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem, the utility model provides a filtration edulcoration system that contains heavy metal mud realizes the function to filtration, edulcoration and the even size mixing of mud.

The utility model provides a filtration edulcoration system that contains heavy metal mud, including the mud district of placing mud, carry out the flushing device that erodees to mud to and agitating unit, mud district and agitating unit between be equipped with the feed arrangement who communicates mud district and agitating unit, agitating unit on be equipped with and erode the discharge gate and retrieve the discharge gate, flushing device include the sluicing pipeline of being connected with the flushing discharge gate, the sluicing pipeline from erodeing the discharge gate and go out to connect gradually transfer pump, control valve and fire control bubble, the fire control bubble establish at mud district or feed arrangement side.

Preferably, the mud flushing pipeline is further connected with a feeding pipeline, the feeding pipeline is connected between the delivery pump and the control valve, and the feeding pipeline is connected with a liquid storage tank.

Preferably, at least 1 fire-fighting water bubble is respectively arranged on two sides of the sludge area or the feeding device.

Preferably, feed arrangement include feedstock channel, feedstock channel be the slope passageway that forms the contained angle with the perpendicular of mud district, feedstock channel in be equipped with demountable installation's one-level filter screen.

Preferably, the feed channel include with the feed channel one of mud district intercommunication, with the feed channel two that feed channel one is connected, feed channel two and agitating unit intercommunication, the contained angle between feed channel one and the vertical be R1, the contained angle between feed channel two and the vertical be R2, R2 numerical value be greater than the numerical value of R1.

Preferably, the R1 is 35-50 degrees, and the R2 is 60-75 degrees.

Preferably, agitating unit including stirring chamber, play material chamber, stirring chamber intermediate position be provided with the mixer, stirring chamber and feedstock channel intercommunication are equipped with demountable installation's second grade filter screen between play material chamber and the stirring chamber, retrieve the discharge gate setting on a material chamber.

Preferably, the inner wall of the stirring cavity is provided with a plurality of water baffles, and the water baffles adopt channel steel.

Preferably, the recycling discharge port is connected with an output pump, and the output pump is connected with a filter press.

Preferably, the flushing discharge port is arranged above the middle height of the stirring device.

The technical scheme of the utility model has following advantage:

1. the fire-fighting water bubbles are used for replacing a common crusher, so that safety accidents caused by improper manual operation can be reduced, and the equipment failure frequency is reduced;

2. the original sectional operation is changed into equipment automation and facility integration, so that the production efficiency is improved, the industrial continuous production is met, and the floor area of the equipment is reduced;

3. the filtering and impurity removing treatment of the primary filter screen and the secondary filter screen and the uniform stirring of the stirrer are adopted, so that impurities in sludge are effectively and fully removed, the sludge size mixing is more uniform and fine, the problem of equipment damage caused by equipment blockage and abrasion is reduced, the service life of a shaft sleeve of the pump is prolonged, and the equipment maintenance cost is reduced;

4. the system has the advantages of compact structure, convenient and flexible operation, good filtering and impurity removing effects, low energy consumption, suitability for large-scale industrial production and low sludge treatment cost.

Drawings

Fig. 1 is a side view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a front view of the present invention.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Refer to fig. 1~3, a filtration edulcoration system that contains heavy metal sludge, including the sludge zone 1 of placing mud, carry out the washing apparatus 2 that erodees mud, and agitating unit 3, be equipped with the feed arrangement 4 of intercommunication sludge zone 1 and agitating unit 3 between sludge zone 1 and the agitating unit 3, be equipped with on the agitating unit 3 and erode discharge gate 5 and retrieve discharge gate 6, washing apparatus 2 includes the sluicing pipeline 21 of being connected with sluicing discharge gate 5, sluicing pipeline 21 comes out from sluicing discharge gate 5 and connects gradually the transfer pump 22, control valve 23 and fire control bubble 24, fire control bubble 24 is established at sludge zone 1 or 4 sides of feed arrangement.

The mud flushing pipeline 21 is also connected with a feeding pipeline 25, the feeding pipeline 25 is connected between the transfer pump 22 and the control valve 23, and the feeding pipeline 25 is connected with a liquid storage tank which stores water, slurry or other liquid; two sides of the sludge area 1 or the feeding device 4 are respectively provided with at least 1 fire-fighting bubble 24, namely, a sludge flushing pipeline 21 is divided into two pipelines from a conveying pump 22, the pipelines are respectively a left sludge flushing pipe and a right sludge flushing pipe, the left sludge flushing pipe and the right sludge flushing pipe are respectively provided with a control valve 23 and at least one fire-fighting bubble 24, the fire-fighting bubble 24 is adjustable fire-fighting bubbles, the fire-fighting bubble 24 can adjust water pressure and jet, the fire-fighting bubble 24 washes sludge in the sludge area 1 and/or the feeding device 3 and breaks up blocky sludge, in 1 embodiment, the flow of the fire-fighting bubble 24 is 20L/s, the range is more than 48m, and the working pressure is 0.8-1.0 MPa; the scouring discharge port 5 is arranged at a position above the middle height of the stirring device, so that the blockage of the transfer pump 22 caused by uneven stirring of the sludge is avoided, and the transfer pump 22 conveys the uniformly stirred slurry to the fire-fighting water bubbles 24.

The feeding device 4 comprises a feeding channel 41, the feeding channel 41 is an inclined channel forming an included angle with the vertical surface of the sludge area, a first-stage filter screen 42 which is detachably mounted is arranged in the feeding channel 41, the first-stage filter screen 42 is a coarse-grid filter screen and is made of twisted steel, and the aperture range is 5-10 cm; the feeding channel 41 comprises a first feeding channel 43 communicated with the sludge area 1 and a second feeding channel 44 connected with the first feeding channel 43, the second feeding channel 44 is communicated with the stirring device 3, the included angle between the first feeding channel 43 and the vertical plane is R1, the included angle between the second feeding channel 44 and the vertical plane is R2, the R2 value is larger than the R1 value, the second feeding channel 44 enables sludge to slowly slide down by slowing down the inclination of inclination, so that the impact on the stirring machine 33 in the stirring device 3 is reduced, the R1 is 35-50 degrees, the R2 is 60-75 degrees, in one embodiment, the R1 is 45 degrees, the R2 is 70 degrees, and the inclined feeding channel 41 can achieve automatic sliding down of the sludge in the sludge area and enter the stirring device after passing through the primary filter screen 42.

The stirring device 3 comprises a stirring cavity 31 and a discharging cavity 32, a stirrer 33 is arranged in the middle of the stirring cavity 31, the stirring cavity 31 is communicated with a feeding channel 41, a second-stage filter screen 34 which is detachably mounted is arranged between the discharging cavity 32 and the stirring cavity 31, the second-stage filter screen 34 belongs to a fine-grid filter screen and is made of stainless steel, the aperture range is 2-5cm, the inner wall of the stirring cavity 31 except the second-stage filter screen 34 is built by concrete, and the second-stage filter screen 34 is arranged on the inner wall of the stirring cavity 31 at the middle height position; the recycling discharge port 6 is arranged on the discharge cavity 32; a plurality of water baffles 35 are arranged on the inner wall of the stirring cavity 31, the water baffles 35 are made of channel steel, the water baffles 35 are arranged on the inner wall of the stirring cavity 31 at the middle height position, and in one embodiment, 4 water baffles 35 are respectively and uniformly arranged on the stirring cavity 31 in a surrounding manner; the recycling discharge port 6 is connected with an output pump, the output pump is connected with a filter press, in one embodiment, the output pump is a screw pump, and the stirred slurry is conveyed to the filter press through the output pump for dewatering and pressing.

The working principle of the utility model is as follows: the heavy metal-containing sludge stacked in the sludge area 1 is sprayed by an adjustable fire-fighting water bubble 24 high-pressure water gun, large hard mud is crushed into loose sand and small particle mud, the mud slides downwards along with an inclined feeding channel 41, large particle impurities such as metal, wood block, plastic, etc. are first removed by the coarse grid filtration of the primary filter 42, the sludge is conveyed to the stirring device 3, under the action of the stirrer 33 and the water baffle 35, the sludge is continuously stirred, the slurry is modulated uniformly after stirring and secondary filtration, partial small particle impurities in the slurry are further intercepted by the secondary filter screen 34, the sludge filtration and impurity removal effects are further improved, then one part of the sludge is sent to the port of the fire-fighting water bubble 24 through the transfer pump 22 for breaking large hard mud, the other part of the sludge is sent to the recovery discharge port 6 through the secondary filter screen 34, the prepared slurry is transferred to a filter press by a transfer pump (not shown) to be dewatered and pressed.

The utility model discloses the technical scheme of protection has following advantage:

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a filtration edulcoration system that contains heavy metal mud which characterized in that: including mud district (1) of placing mud, carry out flushing device (2) that erodees to mud to and agitating unit (3), mud district (1) and agitating unit (3) between be equipped with feed arrangement (4) that communicate mud district (1) and agitating unit (3), agitating unit (3) on be equipped with and erode discharge gate (5) and retrieve discharge gate (6), flushing device (2) including with erode towards mud pipeline (21) that discharge gate (5) are connected, towards mud pipeline (21) come out from washing discharge gate (5) and connect gradually transfer pump (22), control valve (23) and fire control bubble (24), fire control bubble (24) establish in mud district (1) or feed arrangement (4) side.

2. The system of claim 1, wherein the system comprises: still be connected with charge-in pipeline (25) on dash mud pipeline (21), charge-in pipeline (25) connect between transfer pump (22) and control valve (23), charge-in pipeline (25) be connected with the liquid storage tank.

3. The system of claim 1, wherein the system comprises: and at least 1 fire-fighting water bubble (24) is respectively arranged on two sides of the sludge area (1) or the feeding device (4).

4. The system of claim 1, wherein the system comprises: feed arrangement (4) include feedstock channel (41), feedstock channel (41) for the perpendicular plane with the mud district form the slope passageway of contained angle, feedstock channel (41) in be equipped with demountable installation's one-level filter screen (42).

5. The system of claim 4, wherein the system comprises: the feed channel (41) include feed channel one (43) with the mud district intercommunication, feed channel two (44) be connected with feed channel one (43), feed channel two (44) and agitating unit (3) intercommunication, feed channel one (43) and vertical plane between contained angle be R1, feed channel two (44) and vertical plane between contained angle be R2, R2 numerical value be greater than R1's numerical value.

6. The system of claim 5, wherein the system comprises: the temperature of R1 is 35-50 degrees, and the temperature of R2 is 60-75 degrees.

7. The system of claim 1, wherein the system comprises: agitating unit including stirring chamber (31), play material chamber (32), stirring chamber (31) intermediate position be provided with mixer (33), stirring chamber (31) and feedstock channel (41) intercommunication, be equipped with demountable installation's second grade filter screen (34) between play material chamber (32) and stirring chamber (31), retrieve discharge gate (6) and set up on a material chamber (32).

8. The system of claim 7, wherein the system comprises: the inner wall of the stirring cavity (31) is provided with a plurality of water baffles (35), and the water baffles (35) are channel steel.

9. The system of claim 1, wherein the system comprises: the recycling discharge hole (6) is connected with an output pump, and the output pump is connected with a filter press.

10. The system of claim 1, wherein the system comprises: the scouring discharge hole (5) is arranged at a position above the middle height of the stirring device (3).