CN104690221A - Ultrasonic sand washing device - Google Patents
Ultrasonic sand washing device Download PDFInfo
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- CN104690221A CN104690221A CN201310672359.9A CN201310672359A CN104690221A CN 104690221 A CN104690221 A CN 104690221A CN 201310672359 A CN201310672359 A CN 201310672359A CN 104690221 A CN104690221 A CN 104690221A
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- sand
- tank body
- ultrasonic wave
- washing device
- interlayer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
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- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses an ultrasonic sand washing device. The ultrasonic sand washing device comprises a tank body, an ultrasonic vibration plate, a water inlet pipe, an overflowing opening, a sand inlet and a sand outlet, wherein the ultrasonic vibration plate is fixedly arranged in the tank body and the bottom of the tank body is in a tapered structure; the sand outlet is formed in the middle position of the bottom of the tapered structure; the bottom part of the tank body is in an interlayer structure; the water inlet pipe is arranged on the outer wall of the interlayer and a water outlet is formed in the inner wall of the interlayer; water enters the inner space of the interlayer through the water inlet pipe and flows into the tank body through the water outlet in the interlayer; and the sand inlet is formed in the top of the tank body and an overflowing groove for collecting sewage is formed in the edge of the top end of the tank body. Silicon sand to be washed enters the tank body to be treated by the ultrasonic vibration plate, and mud in the silicon sand and pollutants are separated and then enter the overflowing groove along ascending water flow; and the washed silicon sand is deposited to the bottom of the tank body and is discharged through the sand outlet. With the adoption of the ultrasonic sand washing device, the mud content of the casting silicon sand can be reduced to be about 0.1% and the energy consumption also can be reduced by 20%-40%.
Description
Technical field
The present invention relates to sand-washing device technical field, be specifically related to one and make the significantly reduced ultrasonic wave sand-washing device of silica sand clay content.
Background technology
In China, core, the sand mold of casting industry annual needs in producing at least want several ten million tons.Wherein, silica sand because it is cheap, rich reserves and being widely used in casting process.
Research both at home and abroad at present specify that the following performance indications of silica sand have important impact to Foundry Production: clay content, sour consumption value, refractoriness, burning decrement, pH value etc.Wherein the size of clay content directly affect use casting silica sand make core, sand mold intensity.Definition in professional standard (GB/T9442 casting silica sand): clay content---the diameter < 0.020mm particulate fraction mass fraction contained in roughing sand.And clear stipulaties in a standard: clean sand clay content < 0.3%, washed-out sand clay content < 0.5%.So, the product that clay content is lower commercially will inevitably rely on the performance of its high-quality to occupy the larger market share, also can reduce the consumption of Foundry Works's binding agent (mainly resin) simultaneously, viewed from cost angle or utilization of resources angle, all have very large benefit.
At present, the domestic washed-out sand mode generally adopted utilizes scouring method, to remove mud part and some pollutants of sand grain surface of particle diameter < 0.02mm in raw ore.Capital equipment also all concentrates on single barrel of swaging machine and many barrels of swaging machines.Each factory also just reaches by adjusting each operation processing sequence, increase scouring number of times and scouring time the object reducing silica sand clay content.
Cardinal principle is as follows: mortar enters swaging machine, and driven by motor impeller stirs in swaging machine, makes sand grains and sand grains, sand grains and impeller, mutual collision friction between sand grains and swaging machine wall, reaches washed-out sand object.
Shortcoming: when producing in a large number continuously, affect comparatively large by pulp consistency, scouring time, the clean level of raw ore own, energy consumption is high simultaneously, and equipment loss is large.Prove through our lot of experiments: use rational pulp consistency, increase scouring time and number of times, although silica sand clay content can be reduced, when clay content reaches about 0.24%, then continue through this way to improve the quality of products, have little effect.
Summary of the invention
In order to overcome the weak point that prior art exists, the invention provides a kind of ultrasonic wave sand-washing device.Apply this ultrasonic wave sand-washing device, casting silica sand clay content is down to about 0.1%, and energy consumption also can reduce by 20% ~ 40%.
Technical scheme of the present invention is:
A kind of ultrasonic wave sand-washing device, comprise tank body, ultrasonic wave shake plate, water inlet pipe, overfall, sand inlet and sand export, described ultrasonic wave shake plate is fixedly arranged on described tank interior, the bottom of tank body is pyramidal structure, and the intermediate position, bottom of this pyramidal structure is provided with sand export (sand export place is provided with the plate controlling silica sand discharge); The bottom of described tank body is sandwich, and the outer wall of interlayer offers water inlet pipe, the inwall of interlayer sets out the mouth of a river, water enters interlayer inner space by water inlet pipe, then flows in tank body by the delivery port on interlayer; Described sand inlet is located at tank body top, and edge, tank body top is provided with the overflow launder collecting sewage; Silica sand to be washed enters tank interior from the sand inlet on tank body top, in it ultrasonic wave shake plate effect, the mud part in silica sand and pollutant separated after enter overflow launder with ascending current, the silica sand after cleaning is settled down to tank base, discharges through sand export.
Described ultrasonic wave shake plate is multiple, and its mode arranged in tank body has two kinds, and one is: on the sidewall that ultrasonic wave shake plate is fixedly arranged on described tank body and bottom, and quantity and the supersonic frequency of ultrasonic wave shake plate are selected by actual demand, and frequency is generally at 28-40KHz; It two is: multiple ultrasonic wave shake plate is from top to bottom arranged successively in tank body, each ultrasonic wave shake one end of plate and the sidewall weld of tank body, space is left, the arrangement in V-shape between adjacent ultrasonic ripple shake plate (other end in space is left higher than with tank wall in one end of each ultrasonic wave shake plate and tank body welding) between the other end and the sidewall of tank body.
When ultrasonic wave shake plate is the first set-up mode, tank body is cylindric, and tank body upper opening, as sand inlet, makes silica sand to be washed enter in tank body from sand inlet by sand separator.Described sand separator comprises tubular sand inlet and buffer, buffer is cone structure, be located at below tubular sand inlet, silica sand to be washed enters tubular sand inlet, then to flow in washed-out sand tank through the outer surface buffering dispersion of taper buffer and contacts on ultrasonic wave shake plate working face.
When ultrasonic wave shake plate is the second set-up mode, tank body is rectangular-shaped, ultrasonic wave shake plate and inner tank wall seal welding (removing the one end leaving space with inwall).During this kind of set-up mode, described sand inlet is located at the highest point of the plate of ultrasonic wave shake topmost in tank body.
The principle of the invention is as follows:
By ultrasonic applications in washed-out sand, utilize hyperacoustic cavitation exactly, the huge external force (pressure can reach dozens or even hundreds of MPa) that micro-bubble in a liquid produces instantaneously at sand grain surface " blast ", peels off mud part of sand grain surface and pollutant, thus reaches washed-out sand object.
Roughing sand size is generally at 0.1 ~ 0.5mm, and sand grain surface has many unevenness.Although utilize original swaging machine method can remove most of mud part and pollutant, part basic anhydride harmful to type processed, core are in sand grain surface pit, or with crystal growth, extremely difficulty is disposed.This is also clay content controlled about 0.24% time, then passes through the main cause of scouring way DeGrain.
And use ultrasonic wave to carry out washed-out sand, just solve this difficult point largely.Prove through overtesting, the washed-out sand of using ultrasound ripple, is down to about 0.1% by casting silica sand clay content, and energy consumption also can reduce by 20% ~ 40%.
During washed-out sand, mortar amount per hour about 100 tons, so require higher to the disposal ability of washed-out sand equipment.Although supersonic wave cleaning machine has commercially had ripe product, respond well with its wash machine parts, also have its limitation: solution can not acutely stir, otherwise hyperacoustic decay will be very serious, affect cleaning performance.So, in the market also not by ultrasonic applications in the continuous print of fine material, a large amount of cleanings.
Compared with prior art, tool of the present invention has the following advantages:
1, washed-out sand better effects if.Properties of product are superior, and client Foundry Works can save the use of binding agent;
2, energy consumption reduces about 20% ~ 40%, and washed-out sand cost can reduce.
3, ultrasonic cleaning technology is applied to casting silica sand production industry.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 sand-washing device structural representation.
Fig. 2 is the embodiment of the present invention 1 washed-out sand process schematic.
Fig. 3 is the embodiment of the present invention 2 sand-washing device structural representation.
Fig. 4 is the embodiment of the present invention 2 washed-out sand process schematic.
In figure: 1-tank body; 2-ultrasonic wave shake plate; 3-overfall; 4-water inlet pipe; 5-interlayer; 6-sand export; 7-sand inlet; 8-sand separator; 81-tubular sand inlet; 82-buffer; 9-plate switch.
Detailed description of the invention
As Figure 1-4, ultrasonic wave sand-washing device of the present invention, comprise tank body 1, ultrasonic wave shake plate 2, water inlet pipe 4, overfall 3, sand inlet 7 and sand export 6, it is inner that described ultrasonic wave shake plate 2 is fixedly arranged on described tank body 1, the bottom of tank body 1 is pyramidal structure, and the intermediate position, bottom 1 of this pyramidal structure is provided with sand export 6(sand export 6 place and is provided with the plate switch 9 controlling silica sand discharge); The bottom of described tank body 1 is sandwich, the outer wall of interlayer 5 is offered water inlet pipe 4, the inwall of interlayer 5 sets out the mouth of a river, and water enters interlayer 5 inner space by water inlet pipe 4, then flows in tank body 1 by the delivery port on interlayer 5; Described sand inlet 7 is located at tank body 1 top, and edge, tank body 1 top is provided with the overfall 3 collecting sewage; Silica sand to be washed enters tank interior from the sand inlet on tank body top, in it ultrasonic wave shake plate 2 effect, the mud part in silica sand and pollutant separated after enter overfall 3 with ascending current, the silica sand after cleaning is settled down to tank base, discharges through sand export 6.
Embodiment 1:
As shown in Figure 1-2, comprise tank body 1, ultrasonic wave shake plate 2, water inlet pipe 4, overfall 3, sand inlet 7 and sand export 6, it is inner that described ultrasonic wave shake plate 2 is fixedly arranged on described tank body 1, the bottom of tank body 1 is pyramidal structure, and the intermediate position, bottom 1 of this pyramidal structure is provided with sand export 6(sand export 6 place and is provided with the plate switch 9 controlling silica sand discharge); The bottom of described tank body 1 is sandwich, the outer wall of interlayer 5 is offered water inlet pipe 4, the inwall of interlayer 5 sets out the mouth of a river, and water enters interlayer 5 inner space by water inlet pipe 4, then flows in tank body 1 by the delivery port on interlayer 5; Described sand inlet 7 is located at tank body 1 top, and edge, tank body 1 top is provided with the overfall 3 collecting sewage; Silica sand to be washed enters tank interior from the sand inlet on tank body top, in it ultrasonic wave shake plate 2 effect, the mud part in silica sand and pollutant separated after enter overfall 3 with ascending current, the silica sand after cleaning is settled down to tank base, discharges through sand export 6.
Described ultrasonic wave shake plate 2 be multiple, and on the sidewall that ultrasonic wave shake plate 2 is fixedly arranged on described tank body 1 and bottom, between ultrasonic wave shake plate 2, interval is about 50cm, and attention shakes plate working face towards sand.Quantity and the supersonic frequency of ultrasonic wave shake plate 2 are selected by actual demand, and frequency is generally at 28-40KHz; Tank body 1 is cylindric, and tank body upper opening, as sand inlet 7, makes silica sand to be washed enter in tank body 1 from sand inlet 7 by sand separator 8.Described sand separator 8 comprises tubular sand inlet 81 and buffer 82, buffer 82 is cone structure, be located at below tubular sand inlet 81, silica sand to be washed enters tubular sand inlet 81, then to flow in washed-out sand tank body 1 through the outer surface buffering dispersion of taper buffer 82 and contacts ultrasonic wave and shake on plate 2 working face.
Tank body bottom surface interlayer has equally distributed apopore inside tank, to ensure there is steady ascending current in round can during interlayer water filling.Along there being overfall (being set to channel-shaped in the present embodiment) on round can, collect sewage.Round can upper end center has buffer, guarantees that mortar steadily enters in tank body.Round can diameter, height are determined according to treating capacity.
During continuous seepage work, washed-out sand pot bottom interlayer is intake, and forms steady ascending current.Start ultrasonic wave vibration plate.Mortar enters into washed-out sand tank from the buffer smooth dispersion of washed-out sand tank upper end center, can be subject to ultrasonic cavitation effect, affect by ascending current after sand grains scatters, and sedimentation is slowly to extend the ul-trasonic irradiation time.Overflow launder is entered with ascending current after mud part and pollutant are stripped.Silica sand sedimentation after cleaning causes bottom surface, is concentrated to back taper sand export, opens plate switch and discharges.
Embodiment 2:
As shown in Figure 3-4, ultrasonic wave sand-washing device of the present invention, comprise tank body 1, ultrasonic wave shake plate 2, water inlet pipe 4, overfall 3, sand inlet 7 and sand export 6, it is inner that described ultrasonic wave shake plate 2 is fixedly arranged on described tank body 1, the bottom of tank body 1 is pyramidal structure, and the intermediate position, bottom 1 of this pyramidal structure is provided with sand export 6(sand export 6 place and is provided with the plate switch 9 controlling silica sand discharge); The bottom of described tank body 1 is sandwich, the outer wall of interlayer 5 is offered water inlet pipe 4, the inwall of interlayer 5 sets out the mouth of a river, and water enters interlayer 5 inner space by water inlet pipe 4, then flows in tank body 1 by the delivery port on interlayer 5; Described sand inlet 7 is located at tank body 1 top, and edge, tank body 1 top is provided with the overfall 3 collecting sewage; Silica sand to be washed enters tank interior from the sand inlet on tank body top, in it ultrasonic wave shake plate 2 effect, the mud part in silica sand and pollutant separated after enter overfall 3 with ascending current, the silica sand after cleaning is settled down to tank base, discharges through sand export 6.
Ultrasonic wave shake plate 2 is multiple, multiple ultrasonic wave shake plate 2 is from top to bottom arranged successively in tank body 1, each ultrasonic wave shake one end of plate 2 and the sidewall weld of tank body 1, space is left, the arrangement in V-shape between adjacent ultrasonic ripple shake plate 2 (other end in space is left higher than with tank wall in one end that each ultrasonic wave shake plate 2 welds with tank body 1) between the sidewall of the other end and tank body 1.
Tank body 1 is rectangular-shaped, and tank height is determined according to treating capacity, and sectional dimension is depending on ultrasonic wave vibration plate size.Ultrasonic wave shake plate 2 welds with tank body 1 inner wall sealing (removing the one end leaving space with inwall).During this kind of set-up mode, described sand inlet 7 is located at the highest point of the plate 2 of ultrasonic wave shake topmost in tank body.
Be welded in washed-out sand tank by ultrasonic wave vibration plate, make to form " it " word temporary dwelling palace chamber passage in tank, ultrasonic wave working face obliquely.Attention: will ensure during welding that ultrasonic wave vibration plate contacts tightly with washed-out sand tank, guarantees that mortar can only pass through from "the" shape passage; To certain altitude be left between ultrasonic wave vibration plate, prevent ascending current from forming turbulent flow, ultrasonic effect is decayed; Ultrasonic wave vibration plate notes angle, ensures that mortar can flow down smoothly.
During work, first open bottom water inlet pipe, in washed-out sand tank, form steady ascending current.After starting ultrasonic wave vibration plate, start to add sand, certain density mortar enters from washed-out sand tank upper end, can be subject to ultrasonic cavitation effect, affect by ascending current in the process that sand grains is dirty in water, and sedimentation is slowly to extend the ul-trasonic irradiation time.Overflow launder is entered with ascending current after mud part and pollutant are stripped.Silica sand sedimentation after cleaning causes bottom surface, is concentrated to reverse pyramid sand export, opens plate switch and discharges.
Being applied to by ultrasonic cleaning technology in the production of casting silica sand, is the new breakthrough of the washed-out sand technique to domestic decades.To greatly promote casting silica sand quality, for casting economizes on resources; Meanwhile, be also for the application of ultrasonic cleaning technology provides new thinking and countermeasure.
Claims (8)
1. a ultrasonic wave sand-washing device, it is characterized in that: this sand-washing device comprises tank body, ultrasonic wave shake plate, water inlet pipe, overfall, sand inlet and sand export, described ultrasonic wave shake plate is fixedly arranged on described tank interior, the bottom of tank body is pyramidal structure, and the intermediate position, bottom of this pyramidal structure is provided with sand export; The bottom of described tank body is sandwich, and the outer wall of interlayer offers water inlet pipe, the inwall of interlayer sets out the mouth of a river, water enters interlayer inner space by water inlet pipe, then flows in tank body by the delivery port on interlayer; Described sand inlet is located at tank body top, and edge, tank body top is provided with the overflow launder collecting sewage; Silica sand to be washed enters tank interior from the sand inlet on tank body top, in it ultrasonic wave shake plate effect, the mud part in silica sand and pollutant separated after enter overflow launder with ascending current, the silica sand after cleaning is settled down to tank base, discharges through sand export.
2. ultrasonic wave sand-washing device according to claim 1, is characterized in that: described tank body is for cylindric, and described ultrasonic wave shake plate is multiple, and on the sidewall that ultrasonic wave shake plate is fixedly arranged on described tank body and bottom, the quantity of ultrasonic wave shake plate is selected by actual demand.
3. ultrasonic wave sand-washing device according to claim 1, is characterized in that: described tank body is rectangular-shaped, and described ultrasonic wave shake plate is multiple, and multiple ultrasonic wave shake plate is from top to bottom arranged successively in tank body; Each ultrasonic wave shake one end of plate and the sidewall weld of tank body, leave space between the other end and the sidewall of tank body, the arrangement in V-shape between adjacent ultrasonic ripple shake plate.
4. ultrasonic wave sand-washing device according to claim 2, is characterized in that: described tank body upper opening, as sand inlet, makes silica sand to be washed enter in tank body from sand inlet by sand separator.
5. ultrasonic wave sand-washing device according to claim 4, it is characterized in that: described sand separator comprises tubular sand inlet and buffer, buffer is cone structure, be located at below tubular sand inlet, silica sand to be washed enters tubular sand inlet, then to flow in washed-out sand tank through the outer surface buffering dispersion of taper buffer and contacts on ultrasonic wave shake plate working face.
6. ultrasonic wave sand-washing device according to claim 3, is characterized in that: described ultrasonic wave shake plate and inner tank wall seal welding.
7. ultrasonic wave sand-washing device according to claim 3, is characterized in that: described sand inlet is located at the highest point of the plate of ultrasonic wave shake topmost in tank body.
8. ultrasonic wave sand-washing device according to claim 1, is characterized in that: described sand export place is provided with the plate controlling silica sand discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672359.9A CN104690221A (en) | 2013-12-10 | 2013-12-10 | Ultrasonic sand washing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672359.9A CN104690221A (en) | 2013-12-10 | 2013-12-10 | Ultrasonic sand washing device |
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| CN104690221A true CN104690221A (en) | 2015-06-10 |
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| CN201310672359.9A Pending CN104690221A (en) | 2013-12-10 | 2013-12-10 | Ultrasonic sand washing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332293A (en) * | 2018-10-27 | 2019-02-15 | 中建材通辽矽砂工业有限公司 | Silica sand swaging machine |
| CN110282896A (en) * | 2019-07-08 | 2019-09-27 | 上海第二工业大学 | A kind of device and method that fluidized bed continuously washs organic sandstone with ultrasonic wave-coupled |
| CN112557237A (en) * | 2020-12-21 | 2021-03-26 | 中山艾尚智同信息科技有限公司 | Quick, automatic determination device of sand mud content for building |
| CN113546753A (en) * | 2021-06-10 | 2021-10-26 | 昆明理工大学 | Pipeline equipment for strengthening desliming of surface of cast quartz sand |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332293A (en) * | 2018-10-27 | 2019-02-15 | 中建材通辽矽砂工业有限公司 | Silica sand swaging machine |
| CN109332293B (en) * | 2018-10-27 | 2024-05-14 | 中建材通辽矽砂工业有限公司 | Silica sand scrubbing machine |
| CN110282896A (en) * | 2019-07-08 | 2019-09-27 | 上海第二工业大学 | A kind of device and method that fluidized bed continuously washs organic sandstone with ultrasonic wave-coupled |
| CN110282896B (en) * | 2019-07-08 | 2021-10-29 | 上海第二工业大学 | Device and method for continuously washing organic sand and stone by coupling fluidized bed and ultrasonic wave |
| CN112557237A (en) * | 2020-12-21 | 2021-03-26 | 中山艾尚智同信息科技有限公司 | Quick, automatic determination device of sand mud content for building |
| CN113546753A (en) * | 2021-06-10 | 2021-10-26 | 昆明理工大学 | Pipeline equipment for strengthening desliming of surface of cast quartz sand |
| CN113546753B (en) * | 2021-06-10 | 2024-04-19 | 昆明理工大学 | Pipeline equipment for strengthening desliming of surface of cast quartz sand |
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Application publication date: 20150610 |