CN210817286U

CN210817286U - Sand washing system for steel casting water glass waste sand

Info

Publication number: CN210817286U
Application number: CN201921588096.2U
Authority: CN
Inventors: 张灿涛; 李伟锋; 李灿克; 韦铁欣
Original assignee: Luoyang Zhuolian New Material Technology Co Ltd
Current assignee: Luoyang Zhuolian New Material Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-23
Anticipated expiration: 2029-09-24

Abstract

A sand washing system for steel casting water glass waste sand comprises a sand washing machine, a chute, a vibration dewatering screen, a discharge pipeline and a turnover pool; the device comprises two sand washers, a first sand washer, a discharge port of the first sand washer, a chute and a vibration and crushing regenerator, wherein the first sand washer is positioned above a vibration and dehydration screen; a water outlet is formed in the bottom of the lower end of the vibrating dewatering screen, a discharge port is formed in the bottom of the high end of the vibrating dewatering screen, the discharge port of the vibrating dewatering screen is correspondingly communicated with a feed port of a second sand washer, and the discharge port of the second sand washer is correspondingly communicated with a turnover pool; and the device can completely wash out the water glass in the waste sand, so that the sand does not contain the water glass.

Description

Sand washing system for steel casting water glass waste sand

Technical Field

The utility model belongs to the technical field of the waste sand washing technique and specifically relates to a sand washing system that is used for steel casting water glass waste sand is related to.

Background

As is known, water glass is a common binder used in steel casting processes, and is used for binding sand together to form a casting mold, but the casting mold after casting cannot be used for continuous casting, so that only the casting mold can be discarded or used sand regeneration treatment can be performed on the casting mold, if the casting mold is directly discarded, resources are wasted, so that the manufacturing cost of the casting process becomes high, and the used sand regeneration treatment on the casting mold can use the treated regenerated sand in other fields, so that the purposes of recycling and resource saving are achieved; the traditional method for regenerating the used sand of the waste water glass sand adopts a wet regeneration method, the water solubility of the binder is utilized, under the mechanical stirring and water scrubbing effects, the binder remained on the surface of the used sand particles is dissolved and falls off, and the common stirring device has weak stirring capacity and cannot strip the water glass completely; in summary, there is a need in the market for a sand washing system that can completely separate the water glass from the waste sand.

Disclosure of Invention

In order to overcome the not enough in the background art, the utility model discloses a sand washing system for steel casting water glass waste sand.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a sand washing system for steel casting water glass waste sand comprises a sand washing machine, a chute, a vibration dewatering screen, a discharge pipeline and a turnover pool; the device comprises two sand washers, a first sand washer, a discharge port of the first sand washer, a chute and a vibration and crushing regenerator, wherein the first sand washer is positioned above a vibration and dehydration screen; a water outlet is formed in the bottom of the lower end of the vibrating dewatering screen, a discharge port is formed in the bottom of the high end of the vibrating dewatering screen, the discharge port of the vibrating dewatering screen is correspondingly communicated with a feed port of a second sand washer, and the discharge port of the second sand washer is correspondingly communicated with a turnover pool;

preferably, an air pump is arranged between a feeding hole of the first sand washer and a discharging pipeline of the crushing system;

preferably, the water outlet of the vibration dewatering screen is correspondingly communicated with a sewage treatment device through a pipeline;

preferably, the first sand washer and the second sand washer are both double-stage vertical sand washers;

preferably, a liquid level sensor is arranged in the turnover tank.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a sand washing system for steel casting water glass waste sand, at first carry out the one-level sand washing through first sand washer to the waste sand after smashing, carry out the initial gross separation with the grit of bonding, and wash away some impurity, then the sand-water mixture after the one-level sand washing flows in the shale shaker through the chute, discharge after the sewage separation in with the sand-water mixture by the shale shaker, carry out two machine sand washes in the grit entering second sand washer after the dehydration, because the acidic material has been added to the in-process of second grade sand wash, can dissolve the water glass in the grit, thereby separate water glass from waste sand, final second sand washer will not contain the grit of water glass and arrange to the turnover pond.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a first sand washer; 2. a chute; 3. vibrating a dewatering screen; 4. a second sand washer; 5. a turnover pool; 6. an air pump; 7. a sewage treatment device; 8. a liquid level sensor.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

The sand washing system for the steel casting water glass waste sand, which is described in the attached figure 1, comprises a sand washing machine, a vibration dewatering screen 3, a discharging pipeline and a turnover tank 5; the two sand washers are arranged, particularly, the first sand washer and the second sand washer are both arranged as two-stage vertical sand washers, the two-stage vertical sand washers have small damage to the sand structure and compact structure, so that the installation space can be saved in sequence, and the working principle of the two-stage vertical sand washers is based on the inherent characteristic of fluid, so that the energy consumption is reduced; the feeding hole of the first sand washer 1 is correspondingly communicated with the discharging pipeline of the vibration crushing regenerator in the last crushing procedure, the waste sand crushed by the crushing system is fed into the first sand washer 1 for primary sand washing, an air pump 6 is arranged between the feeding hole of the first sand washer 1 and the discharging pipeline of the crushing system as required, the crushed waste sand can be sucked into the first sand washer 1 through the air pump 6, the conveying speed of the waste sand can be obviously improved by utilizing a pneumatic transmission mode, and therefore the working efficiency of the sand washing system is improved; the first sand washer 1 is positioned above the vibrating dewatering screen, a discharge hole of the first sand washer 1 is correspondingly communicated with one end of a chute 2, the other end of the chute 2 is positioned above a feed hole of the vibrating dewatering screen 3, and the chute 2 can guide sand-water mixture to accurately fall into the feed hole of the vibrating dewatering screen 3, so that the sand-water mixture is prevented from falling outside the screen surface of the vibrating dewatering screen 3; the discharge hole of the vibrating dewatering screen 3 is correspondingly communicated with the feed hole of the second sand washer 4, in addition, the water outlet of the vibrating dewatering screen 3 is correspondingly communicated with the sewage treatment device 7 through a pipeline, and the purposes of protecting the environment and reducing pollution are achieved by intensively collecting and treating the sewage separated by the vibrating dewatering screen 3; the discharge gate of second sand washer 4 corresponds the intercommunication with turnover pond 5, and the sand-water mixture after finishing to the sand washing through turnover pond 5 is saved to make things convenient for the direct use of subsequent handling, as required, be equipped with level sensor 8 in the turnover pond 5, can detect out the volume of sand water in the turnover pond 5 through level sensor 8, thereby let the user can be according to the how much of the interior sand water yield of turnover pond 5, and then judge whether to begin to carry out next process.

Implement a during sand washing system for steel casting water glass waste sand, waste sand after at first breakage exports first sand washing machine 1 from broken system, later according to water sand than 1.5: the proportion of 1 adds the clear water to in first sand washer 1 to utilize first sand washer 1 to mix, stir, rub with the hands waste sand, in order to play the sand washing effect, the sand water mixture after the sand washing finishes flows into through chute 2 and takes off the sewage in the vibration dewatering screen 3, and the grit water content of vibration dewatering screen 3 exhaust is about 15%, and this grit reentrants second sand washer 4 washes the sand once more, according to water-sand ratio 1.5 simultaneously: 1, adding clean water into the second sand washer 4, adding a certain amount of acid, discharging the sand-water mixture after sand washing into a turnover pool 5, and storing for the next procedure.

The part of the utility model not detailed is prior art.

Claims

1. The utility model provides a sand washing system that is used for steel casting water glass waste sand, characterized by: comprises a sand washer, a chute (2), a vibration dewatering screen (3), a discharge pipeline and a turnover tank (5); the two sand washers are arranged, the first sand washer (1) is positioned above the vibrating dewatering screen (3), a feed port of the first sand washer (1) is correspondingly communicated with a discharge pipeline of the vibrating crushing regenerator in the last crushing procedure, a discharge port of the first sand washer (1) is correspondingly communicated with one end of the chute (2), and the other end of the chute (2) is positioned above the feed port of the vibrating dewatering screen (3); the low end bottom of vibration dewatering screen (3) is equipped with the delivery port, and the high end bottom of vibration dewatering screen (3) is equipped with the discharge gate, and the discharge gate of vibration dewatering screen (3) corresponds the intercommunication with the feed inlet of second sand washer (4), and the discharge gate of second sand washer (4) corresponds the intercommunication with turnover pond (5).

2. The sand washing system for the steel-casting water glass waste sand of claim 1, which is characterized in that: an air pump (6) is arranged between a feed inlet of the first sand washer (1) and a discharge pipeline of the crushing system.

3. The sand washing system for the steel-casting water glass waste sand of claim 1, which is characterized in that: the water outlet of the vibrating dewatering screen (3) is correspondingly communicated with the sewage treatment device (7) through a pipeline.

4. The sand washing system for the steel-casting water glass waste sand of claim 1, which is characterized in that: and the first sand washer (1) and the second sand washer (4) are both double-stage vertical sand washers.

5. The sand washing system for the steel-casting water glass waste sand of claim 1, which is characterized in that: and a liquid level sensor (8) is arranged in the turnover pool (5).