CN214814557U

CN214814557U - A machine is cleaned to second grade wet process for casting sand waste handles

Info

Publication number: CN214814557U
Application number: CN202120166157.7U
Authority: CN
Inventors: 占稳; 杨彬
Original assignee: Cam Casting Material Technology Fujian Co ltd
Current assignee: Cam Casting Material Technology Fujian Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-11-23
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a secondary wet scrubbing machine for treating casting waste sand, which comprises a scrubbing machine body, a cleaning machine body and a cleaning machine body, wherein the scrubbing machine body consists of a motor, a groove body, a slurry inlet and a discharge hole; a pulp inlet is fixed on the left side of the scrubbing machine body, and a discharge outlet is fixed on the right side of the scrubbing machine body; the scrubbing machine body is provided with two groups of groove bodies which are close together; the top of the two groups of the tanks is provided with a cover plate, the top of the cover plate is fixed with a stirring mechanism, and the motor drives a stirring shaft arranged on the stirring mechanism through a chain and extending to the inside of the tank; the utility model is used for a casting waste sand recovery processing system, and the whole device has simple design; the unique stirring shaft design and the ultrasonic generator are utilized to accelerate the dissolution of the water glass, so that the scrubbing efficiency and the scrubbing effect are greatly improved, and the powerful scrubbing effect on the waste sand to be scrubbed is also achieved.

Description

A machine is cleaned to second grade wet process for casting sand waste handles

Technical Field

The utility model relates to a casting sand reclamation production facility technical field specifically is a machine is cleaned to second grade wet process for casting sand disposal.

Background

China is a large country for casting production, the yield of castings is in the top of the world, sand casting accounts for most of the casting industry, about 80% -90%, old sand regeneration is a treatment process for old sand for casting, which is to remove invalid or non-invalid binder coating films attached to the surfaces of old sand particles by adopting physical and chemical means such as a mechanical friction method, a heating method, a hydraulic method and the like, so that various process properties of the old sand are recovered, and the final purpose is to reduce the consumption of new sand in casting production, save economic investment and improve the quality of castings, thereby protecting the natural environment.

The wet regeneration method of the waste foundry sand utilizes the characteristic that residues on the surface of the waste sodium silicate sand are easily dissolved in water; old sand stored in the casting waste sand wet regeneration system is conveyed to a sand washing device through a lifting device to be washed; the original secondary wet scrubbing machine is an eight-edge type interior; waste sand is easy to deposit at the corner of the edge and the corner, and the treatment volume of the secondary wet scrubbing machine is easy to reduce and the treatment efficiency is reduced after the secondary wet scrubbing machine is used for a long time; the deposit generates blocks which are not easy to clean; the scrubbing intensity is low, the retention time of the materials in the scrubbing machine is short, so that the scrubbing efficiency is low and the scrubbing effect is not ideal; therefore, a new scrubber needs to be designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple to operate, rational in infrastructure clean machine to overcome prior art's weak point.

In order to achieve the above object, the utility model provides a following technical scheme:

a secondary wet scrubbing machine for treating casting waste sand comprises a scrubbing machine body, a cleaning machine body and a cleaning machine body, wherein the scrubbing machine body is composed of a motor, a groove body, a slurry inlet and a discharge hole; a pulp inlet is fixed on the left side of the scrubbing machine body, and a discharge outlet is fixed on the right side of the scrubbing machine body; the scrubbing machine body is provided with two groups of groove bodies which are close together; the top of the two groups of the tanks is provided with a cover plate, the top of the cover plate is fixed with a stirring mechanism, and the motor drives a stirring shaft arranged on the stirring mechanism through a chain and extending to the inside of the tank;

the stirring shaft comprises a shaft lever, stirring bodies, stirring blades and a bottom stirring body, wherein the stirring blades are distributed on the stirring bodies at equal intervals, the shaft lever is provided with a plurality of groups of stirring bodies, and the two stirring bodies are arranged closely together; the horizontal angle of the stirring blades arranged on the stirring body is 30 DEG

The stirring blades on the stirring bodies which are arranged adjacently up and down are arranged in opposite directions at 60 degrees; the top of the shaft lever is provided with a bottom stirring body, and the bottom stirring body is provided with two groups of stirring blades and is arranged in a V shape;

the water quality sensor comprises a tank body and is characterized in that the tank body shell is a regular octagonal cylinder, the inside of the tank body is a cylinder, the bottom inside the tank body is an arc body, ultrasonic generators are arranged on the side walls of the two groups of tank bodies, and a plurality of groups of water quality sensors are arranged on the inner walls of the tank bodies.

Preferably, the pulp inlet is arranged above the left side of the left groove body and communicated with the inside of the left groove body; the discharge port is arranged above the right side of the right groove body and communicated with the inside of the right groove body, and a pulp through port is arranged between the two groove bodies; and the slurry inlet and the slurry through port extend out of a slurry inlet pipe and extend to the position right above the stirring body.

Preferably, the stirring mechanism comprises a fixed frame, a bracket, a stirring shaft, a fixed bearing, a motor and a protective cover; the stirring shaft is supported on a fixed frame arranged at the top of the cover plate through two groups of fixed bearings, and the motor is fixed on the fixed frame through a bracket; chain wheels are arranged at the tops of the motor and the stirring shaft, and the motor drives the stirring shaft to rotate through chains on the chain wheels; and a protective cover is arranged at the top of the chain wheel.

Preferably, the motors of the stirring mechanisms are respectively arranged in the V-shaped grooves between the two groups of grooves.

Preferably, the side edges of the adjacent stirring blades are arranged in a staggered manner, and the stirring blades are made of high-chromium cast iron.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages that the directions of the stirring blades on the upper and lower adjacent stirring bodies are opposite, so that violent upper and lower turbulence is formed in the tank body, the waste sand has huge momentum therein, and violent friction and collision are generated mutually, and the water glass wrapped on the surface of the waste sand is more easily peeled off; the top of the shaft lever is provided with a V-shaped bottom stirring body, so that the waste sand at the bottom can be fully stirred; ultrasonic generators are arranged on the side walls of the tank body to accelerate the water glass on the surface of the waste sand to be dissolved into water; and the inner wall is provided with a water quality sensor which can monitor the mortar of the tank body at any time.

The utility model discloses the inside of cell body is the cylinder, and the inside bottom of cell body is the arc body, and the depositional waste sand of corner angle that significantly reduces has avoided the deposit of waste sand.

The utility model discloses make and clean efficiency and clean the effect and promote greatly, also reached simultaneously and treated the powerful effect of cleaning of silica sand material.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the internal structure of the tank body of the present invention.

Fig. 2 is a schematic view of the top structure of the scrubber of the present invention.

Fig. 3 is a schematic view of the structure of the stirring shaft of the present invention.

Fig. 4 is the utility model discloses the reclaimed silica sand after the processing detects the instruction list.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a secondary wet scrubbing machine for treating casting waste sand comprises a scrubbing machine body, wherein the scrubbing machine body is composed of a motor 2, a tank body 1, a slurry inlet 14 and a discharge hole 13; a pulp inlet 14 is fixed on the left side of the scrubbing machine body, and a discharge outlet 13 is fixed on the right side of the scrubbing machine body; the scrubbing machine body is provided with two groups of groove bodies 1 which are closely arranged together; the top parts of the two groups of the tanks 1 are provided with cover plates 16, the top parts of the cover plates 16 are fixedly provided with stirring mechanisms, and the motors 2 drive the stirring mechanisms through chains and extend to the stirring shafts 4 in the tanks 1;

the stirring shaft 4 comprises a shaft lever 41, stirring bodies 43, stirring blades 42 and a bottom stirring body 44, the groups of stirring blades 42 are distributed on the stirring bodies 43 at equal intervals, the shaft lever 41 is provided with the groups of stirring bodies 43, and the two stirring bodies 43 are arranged closely together; the horizontal angle of the stirring blades 42 arranged on the stirring body 43 is 30-60 degrees, and the setting directions of the stirring blades 42 on the stirring bodies 43 which are arranged adjacently up and down are opposite; a bottom stirring body 44 is arranged at the top of the shaft lever 41, and two groups of stirring blades 42 are arranged on the bottom stirring body 44 and are arranged in a V shape;

the water quality sensor comprises a tank body 1 and is characterized in that a shell of the tank body 1 is a regular octagonal cylinder, the tank body 1 is cylindrical, the bottom inside the tank body 1 is an arc body, ultrasonic generators 12 are arranged on the side walls of the two sets of tank bodies 1, and a plurality of groups of water quality sensors 11 are arranged on the inner wall of the tank body 1.

Preferably, the pulp inlet 14 is arranged above the left side of the left tank body 1 and is communicated with the inside of the left tank body 1; the discharge port 13 is arranged above the right side of the right groove body 1 and is communicated with the inside of the right groove body 1, and a pulp through port 15 is arranged between the two groove bodies 1; the slurry inlet 14 and the slurry through port 15 extend out of a slurry inlet pipe and extend to the right upper part of the stirring body 43.

Preferably, the stirring mechanism comprises a fixed frame 33, a bracket 3, a stirring shaft 4, a fixed bearing 32, a motor 2 and a protective cover 31; the stirring shaft 4 is supported on a fixed frame 33 arranged at the top of the cover plate 16 through two groups of fixed bearings 32, and the motor 2 is fixed on the fixed frame 33 through a bracket 3; chain wheels are arranged at the tops of the motor 2 and the stirring shaft 4, and the motor 2 drives the stirring shaft 4 to rotate through chains on the chain wheels; the top of the chain wheel is provided with a protective cover 31.

Preferably, the motors 2 of the stirring mechanisms are respectively arranged in the V-shaped grooves between the two groups of the groove bodies 1.

Preferably, the side edges of the adjacent stirring blades 42 are arranged in staggered layers, and the material of the stirring blades 42 is made of high-chromium cast iron.

The working principle is as follows:

waste mortar enters the left tank body 1 from the mortar inlet 14 and flows into the upper part of the stirring shaft 4 through the mortar inlet pipe; the left motor 2 of the scrubbing machine body is started to drive the stirring shaft 4 to rotate; the stirring blades 42 throw the mortar to the inner wall by centrifugal force; when the waste mortar is filled into the left tank body 1 to a certain height, the motor 2 drives the stirring shaft 4 to rotate at full speed, so that severe up-and-down turbulence is formed in the tank body, the waste sand has huge momentum in the tank body and generates severe friction and collision with each other, and the water glass coated on the surface of the waste sand is more easily stripped; then flows into the right tank body 1 through the pulp inlet 15, the right motor 2 of the scrubbing machine body is started, and the stirring shaft 4 is driven to rotate; the stirring blades 42 throw the mortar to the inner wall by centrifugal force; when the waste mortar is filled into the right groove body 1 to a certain height, the motor 2 drives the stirring shaft 4 to rotate at full speed, so that severe up-and-down turbulence is formed in the groove body, and the waste sand in the waste mortar is further scrubbed; the waste sand is subjected to violent friction and collision, so that the surface of the waste sand becomes more round and smooth; and finally flows out of the discharge port 13.

In the first embodiment, the shaft rod 41 is provided with a plurality of groups of stirring bodies 43, and two stirring bodies 43 are arranged closely together; the stirring blades 42 are equidistantly distributed on the stirring body 43, the horizontal angle of the stirring blades 42 arranged on the stirring body 43 is 30-60 degrees, wherein the optimal horizontal angle of the stirring blades 42 is 45 degrees; the side edges of the adjacent stirring blades 42 are arranged in a staggered manner, and the stirring blades 42 are made of high-chromium cast iron; the stirring blades 42 on the stirring bodies 43 which are arranged adjacently up and down are arranged in opposite directions; when the motor 2 is started and drives the stirring shaft 4 to rotate, the waste mortar is stirred up and down by the stirring blades 42 in opposite directions when passing through the stirring blades 42 on the stirring bodies 43 which are arranged adjacently up and down, so that the stirring blade 42 of the upper stirring body 43 adjacent up and down generates upward pressure on the waste mortar, the stirring blade 42 of the lower stirring body 43 adjacent down and up generates downward pressure on the waste mortar, turbulence extruded up and down is formed in the tank body 1, the waste sand has huge momentum therein and generates violent friction and collision with each other, and the water glass coated on the surface of the waste sand is more easily stripped;

wherein, the top of the shaft lever 41 is provided with a bottom stirring body 44, and two groups of stirring blades 42 are arranged on the bottom stirring body 44 and are arranged in a V shape; the waste sand at the bottom of the tank body 1 can be stirred, so that the waste sand is prevented from being accumulated at the bottom, and the scrubbing efficiency and the scrubbing effect are greatly improved.

The inside of the tank body 1 is a cylinder, and the bottom inside the tank body 1 is an arc, so that the waste sand of the waste mortar is always kept in a flowing state, the waste sand is deposited at the corner angles, the deposition of the waste sand is avoided, and the reduction of the scrubbing efficiency and the scrubbing effect is avoided.

In the second embodiment, in order to accelerate the dissolution of the water glass on the surface of the waste sand into water, the ultrasonic generators 12 are arranged on the side walls of the two groups of the tank bodies 1; when the waste mortar is filled into the tank bodies 1 at the left side and the right side at a certain height, the ultrasonic generator 12 is started to generate high-frequency vibration in the waste mortar, so that the water glass on the surface of the waste mortar is accelerated to be dissolved into water; and the violent friction and collision of the waste sand can be intensified, so that the surface of the waste sand becomes more round and smooth.

In order to ensure that the waste mortar in the tank body 1 has too high concentration, the waste mortar blocks the stirring shaft 4, so that the motor is locked and rotates and the driving current is too large, and the motor is burnt; a plurality of groups of water quality sensors 11 are arranged on the inner wall of the tank body 1; and monitoring parameters such as the concentration, the pH value and the like of the waste mortar in the tank body 1 at any time, and giving an alarm to an operator and prompting the operator to add water into the tank body 1 when the concentration is too high.

Wherein, the motor 2 drives the stirring shaft 4 to rotate through a chain on the chain wheel; the stirring shaft 4 has the characteristics of rotating torque, accurate control, difficult slipping and the like, and meanwhile, the durability of the chain is better.

As shown in fig. 4, after the secondary wet scrubbing machine is operated for a long time, the waste mortar is treated by the secondary wet scrubbing machine; through detection, the SiO of the regenerated silica sand₂The content of the sulfur is more than 98 percent, and the ignition loss is less than 0.21 percent; and the content of the impurity chemical components is close to that of the new silica sand, and is less than the standard of the content of the impurity chemical components of the casting silica sand.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A secondary wet scrubbing machine for treating casting waste sand comprises a scrubbing machine body, wherein the scrubbing machine body is composed of a motor (2), a tank body (1), a slurry inlet (14) and a discharge hole (13); the method is characterized in that: a pulp inlet (14) is fixed on the left side of the scrubbing machine body, and a discharge hole (13) is fixed on the right side of the scrubbing machine body; the scrubbing machine body is provided with two groups of groove bodies (1) which are closely connected together; a cover plate (16) is arranged at the top of each of the two groups of tanks (1), a stirring mechanism is fixed at the top of each cover plate (16), and a motor (2) drives a stirring shaft (4) which is arranged on the stirring mechanism and extends into the tanks (1) through a chain;

the stirring shaft (4) comprises a shaft lever (41), stirring bodies (43), stirring blades (42) and a bottom stirring body (44), a plurality of groups of stirring blades (42) are equidistantly distributed on the stirring bodies (43), a plurality of groups of stirring bodies (43) are arranged on the shaft lever (41), and the two stirring bodies (43) are arranged closely together; the horizontal angle of the stirring blades (42) arranged on the stirring body (43) is 30-60 degrees, and the setting directions of the stirring blades (42) on the stirring body (43) which are adjacently arranged up and down are opposite; the top of the shaft lever (41) is provided with a bottom stirring body (44), and the bottom stirring body (44) is provided with two groups of stirring blades (42) which are arranged in a V shape;

the water quality sensor is characterized in that the shell of the tank body (1) is a regular octagonal cylinder, the tank body (1) is cylindrical, the bottom inside the tank body (1) is an arc body, the ultrasonic generator (12) is arranged on the side wall of the tank body (1), and a plurality of groups of water quality sensors (11) are arranged on the inner wall of the tank body (1).

2. A secondary wet scrubbing machine for foundry waste sand treatment as claimed in claim 1 wherein: the pulp inlet (14) is arranged above the left side of the left groove body (1) and is communicated with the inside of the left groove body (1); the discharge port (13) is arranged above the right side of the right groove body (1) and is communicated with the inside of the right groove body (1), and a pulp through port (15) is arranged between the two groove bodies (1); the slurry inlet (14) and the slurry through port (15) extend out of a slurry inlet pipe and extend to the position right above the stirring body (43).

3. A secondary wet scrubbing machine for foundry waste sand treatment as claimed in claim 1 wherein: the stirring mechanism comprises a fixed frame (33), a bracket (3), a stirring shaft (4), a fixed bearing (32), a motor (2) and a protective cover (31); the stirring shaft (4) is supported on a fixed frame (33) arranged at the top of the cover plate (16) through two groups of fixed bearings (32), and the motor (2) is fixed on the fixed frame (33) through a bracket (3); chain wheels are arranged at the tops of the motor (2) and the stirring shaft (4), and the motor (2) drives the stirring shaft (4) to rotate through chains on the chain wheels; the top of the chain wheel is provided with a protective cover (31).

4. A secondary wet scrubbing machine for foundry waste sand treatment as claimed in claim 1 wherein: and a motor (2) of the stirring mechanism is respectively arranged in a V-shaped groove between the two groups of groove bodies (1).

5. A secondary wet scrubbing machine for foundry waste sand treatment as claimed in claim 1 wherein: the side edges of the adjacent stirring blades (42) are arranged in a staggered mode, and the stirring blades (42) are made of high-chromium cast iron.