CN102886175A - Self-rotating sand cutter - Google Patents

Abstract

The invention discloses a spin sand interceptor, which comprises: a shell, a support orifice is arranged in the transverse direction of the shell, and the inside of the shell is divided into an upper clean water collection area and a lower clean water collection area by the support orifice. Spin-settling area; at least one sand-cutting element, erected between the support orifice plate and the top plate that is crimped on the upper end of the housing, and at least one installation is arranged on the support orifice plate corresponding to the sand-cutting element hole, the lower end of each sand-cutting element is correspondingly plugged into the installation hole, and its upper end is connected to the top plate; the water inlet, water outlet and sewage outlet are all arranged on the side wall of the housing, Wherein the water inlet and the sewage outlet are connected with the spin sedimentation area, and the water outlet is connected with the clean water collection area. The invention can effectively intercept sand particles and other large-density solid particles in water, and has the advantages of simple structure, remarkable effect and simple operation.

Description

spin sand trap

technical field

The invention relates to an intercepting device assembled at the water outlet of a sand filter to intercept sand particles and other solid particle impurities remaining in the water due to various reasons, and to protect subsequent water use equipment and pipeline fittings, especially an intercepting device with a simple structure, Spin sand interceptor with stable effect of retaining sand and solid particles.

Background technique

In various water treatment process systems at present, sand filter is widely used because of its excellent treatment effect. Whether it is water supply treatment or sewage treatment process, sand filter is an important barrier to ensure water quality conditions. However, in actual production, due to operating reasons such as excessive water inlet pressure or excessive backwashing intensity, the filter material gradation chaos often occurs. In addition, the aging and damage of the effluent collection device loses the separation effect of the filter material and the effluent. It will cause the leakage of filter sand and other particulate matter, and enter the follow-up water equipment with the effluent, which will cause many adverse effects. For example, in the turbid ring water treatment system in the iron and steel industry, the water treated by the sand filter is directly sent to the cooling tower, and then sent to the user through the pump unit. The sand and other particles in the water can easily cause the nozzle of the cooling tower to be blocked. When passing through the pump impeller , It is easy to cause damage to the impeller, and it is also easy to block the nozzle at other user points, causing harm to equipment and pipelines, and ultimately affecting production.

In this regard, the currently commonly used method is to regularly clean or replace related equipment and components to ensure the normal operation of the system and equipment and ensure the smooth progress of production. However, this method increases the amount of manual work and increases production costs.

Adding a filter device after the sand filter filter can filter out sand and other impurities, ensure water safety, and at the same time reduce the amount of manual work and production costs. The Chinese invention patent application (application number: 201010124884.3) provides a filtering device and method. The invention fixes the water treatment component in the water storage body by the limiting mechanism, and maintains the water treatment component in the area below the surface of the water with purified water treatment. After entering the water storage period, the water first enters from the lower part of the water treatment component. After filtering, the clear water Discharged from the upper part of the water treatment unit. However, practice has proved that this technical solution still has some technical defects. When the flow rate of water entering the water storage body is too strong and carries too many impurities, the impurities are easy to stick to the filter assembly, causing blockage of the filter assembly, and the water cannot pass through the filter smoothly. Components affect the filtration efficiency. At the same time, because the filter components are easily blocked, they need to be cleaned and replaced frequently, which increases the cost of filtration. In addition, when the water velocity is too strong, the sandstone or other hard solid impurities carried in the water will impact the filter assembly with the water flow, causing damage to the filter assembly, which in turn will reduce the filtering effect of the filter assembly and reduce the water quality of the filtered water by less than 10%. to filter criteria.

In view of the above-mentioned unavoidable defects of existing sand filters, the inventor has developed a spin sand trap with simple structure, reliable effect and simple operation based on years of experience in production design in this field and related fields.

Contents of the invention

The object of the present invention is to provide a spin sand trap with simple structure, simple operation and stable effect of retaining sand and solid particles.

In order to achieve the above object, the present invention proposes a spin sand trap, the spin sand trap includes: a housing, a support orifice plate is arranged horizontally inside the housing, and the inside of the housing passes through the support hole The plate is divided into the upper clear water collection area and the lower spin settlement area; at least one sand cutting element is erected between the supporting orifice plate and the top plate crimped on the upper end of the housing, corresponding to the supporting orifice plate At least one installation hole is provided on the sand cutting element, the lower end of each sand cutting element is correspondingly plugged into the installation hole, and the upper end thereof is connected to the top plate; the water inlet, the water outlet and the sewage outlet, They are all arranged on the side wall of the housing, wherein the water inlet and the sewage outlet are communicated with the spin sedimentation area, and the water outlet is communicated with the clean water collection area.

The above-mentioned spin sand trap, wherein, the shell is a cylindrical structure, and its cross section is circular or regular polygonal.

The above-mentioned spin sand trap, wherein, the top plate is detachably connected with the upper end of the casing.

The above-mentioned spin sand trap, wherein, the upper end of the sand trap element is welded to the lower surface of the top plate.

The above-mentioned spin sand trap, wherein, the lower surface of the top plate is pressed against the upper end of the sand trap.

The above-mentioned spin sand interceptor, wherein, the sand intercepting element is a cylindrical structure with a circular or regular polygonal cross section, and several filter holes and/or or water flow channels formed by gaps.

The above-mentioned spin sand interceptor, wherein, the water inlet is arranged at the middle and lower part of the side wall of the housing, the sewage outlet is arranged at the bottom of the side wall of the housing, and the water outlet is arranged near the Shell top.

The above-mentioned spin sand trap, wherein, the bottom of the housing is flat-bottomed or inclined.

The above-mentioned spin sand interceptor, wherein, the bottom of the housing is in the shape of a funnel with a wide upper part and a narrower lower part, and the sewage outlet is arranged at the bottom end of the funnel-shaped housing bottom.

The above-mentioned spin sand trap, wherein, the axis line of the water inlet is tangent to the cross-sectional circle of the housing or the circumscribed circle of the regular polygonal cross-section.

Compared with the prior art, the present invention has the following characteristics and advantages:

1. In the spin sand interceptor of the present invention, the water first enters the casing tangentially, and spins are generated in the casing. Under the combined action of centrifugal force and gravity, at the same time, the diameter of the casing is larger than that of the water inlet pipe , the flow rate of the water flow is reduced, and the water carrying capacity is also greatly reduced, and the sand and other particles in the incoming water can be deposited on the bottom of the shell; the sand intercepting element on the upper part of the shell can effectively intercept the sand or other particles that are not removed due to the impact of local water flow , providing a secondary guarantee for the final water discharge.

2. The spin sand interceptor of the present invention has a certain dirt-holding space between the bottom of the shell and the water inlet, which can store the settled sand and other solid particle impurities, and effectively prevent the deposited solid particle impurities from being trapped in the water flow. Secondary churning under turbulent conditions affects the effect of sand interception. When the sewage is discharged regularly, the solid particle impurities settled in the sewage space can be discharged out of the decontamination device together with the water flow, realizing the purification and separation of solid and liquid, thus greatly improving the water safety of subsequent user points.

3. The spin sand interceptor of the present invention is equipped with a sand intercepting element on the top of the casing, which can effectively intercept sand and other solid particle impurities and improve the reliability of the equipment.

4. In the spin sand interceptor of the present invention, the orientation of the water outlet and the sewage outlet relative to the water inlet can be adjusted arbitrarily on the plane circumference according to actual installation needs.

Description of drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to help the understanding of the present invention, and do not specifically limit the shapes and proportional dimensions of the components in the present invention. Under the teaching of the present invention, those skilled in the art can select various possible shapes and proportional dimensions according to specific situations to implement the present invention.

Fig. 1 is the structural representation of spin sand interceptor of the present invention;

Fig. 2 is another structural schematic diagram of the spin sand trap of the present invention.

Explanation of reference signs:

1-shell; 2-water inlet; 3-water outlet; 4-drainage outlet; 5-supporting orifice plate; 6-sand cutting element; 7-installation hole; 8-filter hole; 11-water collection area; 12- Spin sedimentation zone; 13 - top plate.

Detailed ways

The details of the present invention can be understood more clearly with reference to the accompanying drawings and the description of specific embodiments of the present invention. However, the specific embodiments of the present invention described here are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modification based on the present invention, and these should be regarded as belonging to the scope of the present invention.

Please refer to FIG. 1 , which is a schematic structural diagram of the spin sand trap of the present invention. As shown in Figure 1, the spin sand interceptor proposed by the present invention includes: a housing 1, a water inlet 2, a water outlet 3, a sewage outlet 4, a supporting orifice 5 and a sand cutting element 6, and the supporting orifice 5 is arranged laterally Inside the housing 1 , the interior of the housing 1 is divided into an upper clean water collection area 11 and a lower spin sedimentation area 12 . The water inlet 2, the water outlet 3 and the sewage outlet 4 are all arranged on the side wall of the housing 1, wherein the water inlet 2 and the sewage outlet 4 are connected to the spin sedimentation area 12, and the water outlet 3 is connected to the clean water collection area 11. In this way, the sewage carrying sand and other solid particle impurities enters the spin-settling zone 12 through the water inlet 2 , deposits in the dirt-holding space at the bottom of the spin-settling zone 12 , and is discharged through the sewage outlet 4 . The sand cutting element 6 is erected between the supporting orifice plate 5 and the top plate 13 crimped on the upper end of the shell 1, which can effectively intercept the sand or other particles that are not removed due to the impact of the local water flow, and play a role in filtering, providing a guarantee for the final water outlet. secondary safeguards. Specifically, mounting holes 7 corresponding to the number and positions of the sand-cutting elements 6 are provided on the support orifice plate 5, and the lower end of each sand-cutting element 6 is correspondingly plugged into the mounting holes 7, and the upper end of the sand-cutting element 6 It is in contact with the top plate 13 so that the sand cutting element 6 stands upright in the clean water collection area 11 supporting the orifice plate 5 and the top plate 13 . In this way, the local water flow in the lower spin sedimentation zone 12 enters from the lower end of the sand cutting element 6 through the installation hole 7 , and flows into the upper clear water collection zone 11 after being filtered by the sand cutting element 6 . Thereby effectively intercepting sand grains and other solid particle impurities and improving the reliability of the equipment. The number of sand cutting elements 6 can be selected according to the actual volume and requirements of the housing, as long as it can effectively intercept sand grains and other solid particle impurities, the present invention is not limited to this.

Further, in the present invention, the housing 1 is a cylindrical structure, and its cross section is circular or regular polygonal, so as to meet the requirements for different shapes of the housing 1 .

Further, as shown in Figure 1, the top plate 13 and the upper end of the housing 1 are detachably connected together to close the upper port of the housing 1, and the top plate 13 and the housing 1 are connected in a detachable manner, which is convenient for Overhaul and maintenance of the internal components of the housing 1. In this embodiment, the top plate 13 is connected to the upper end of the casing 1 through a plurality of bolts arranged along the circumferential direction. The present invention is not limited thereto, and the top plate 13 and the housing 1 may also adopt other known detachable connection methods, such as buckle connection, screw connection and the like.

In this embodiment, the lower surface of the top plate 13 is pressed against the upper end of the sand intercepting element 6 . When the equipment is overhauled and maintained, the top plate 13 is removed, and then the sand cutting element 6 is taken out from the housing 1 for replacement. As another optional embodiment of the present invention, the upper end of the sand cutting element 6 is welded to the lower surface of the top plate 13 . During equipment overhaul and maintenance, the top plate 13 and the sand cutting element 6 can be removed together, which improves the work efficiency.

Further, the sand-cutting element 6 is a cylindrical structure with a circular or regular polygonal cross section, and several filter holes 8 and/or slits (not shown) are arranged on the cylinder wall of the sand-cutting element 6. The water flow channel, so that the water flow entering the sand cutting element 6 enters the clean water collection area 11 after being filtered through the water flow channel.

In the present invention, a water inlet 2, a water outlet 3, and a sewage outlet 4 are provided on the side wall of the housing 1, wherein the water inlet 2, the sewage outlet 4 communicate with the spin settlement area 12, and the water inlet 2 is arranged on the self- The middle and lower part of the subsidence zone 12 is swirled, and the axis line of the water inlet 2 is tangent to the cross-sectional circle of the shell 1 or the circumscribed circle of the regular polygonal cross-section, thereby ensuring a good spin effect. The sewage outlet 4 is arranged at the bottom of the spin sedimentation area 12 , the water outlet 3 is connected with the clean water collection area 11 , and the water outlet 3 is arranged near the top of the housing 1 . The orientation of the water outlet 3 and the sewage outlet 4 relative to the water inlet 2 can be adjusted arbitrarily on the plane circumference according to the actual installation needs, so as to achieve a better use effect.

As an optional embodiment of the present invention, the bottom of the housing 1 is flat-bottomed, and the sewage outlet 4 is arranged at the bottom of the side wall of the housing 1 to ensure that it is close to the bottom of the spin-settling area. As another optional embodiment of the present invention, in order to facilitate the discharge of dirt, the bottom of the housing 1 can be designed to be inclined, and the sewage outlet 4 is arranged at the lowest end of the inclined bottom.

As shown in Fig. 2, it is another structural schematic diagram of the spin sand trap of the present invention. The difference between this embodiment and the embodiment shown in Figure 1 is that the bottom of the housing 1 is funnel-shaped with a wide upper part and a narrower lower part, and the sewage outlet 4 is arranged at the bottom of the funnel-shaped housing bottom, which is more conducive to equipment sewage discharge . Other structures, working principles and beneficial effects of this embodiment are the same as those of the embodiment shown in FIG. 1 , and will not be repeated here.

The working principle of the present invention is: the water from the sand filter carrying sand and other solid particle impurities flows into the casing 1 along the tangent from the water inlet 2, and the water flow rotates, and the sand and other solid particle impurities in the water are under the combined action of centrifugal force and gravity. , deposited in the dirt-holding space at the bottom of the spin sedimentation zone 12. At the same time, since the diameter of the shell 1 is larger than the diameter of the water inlet 2, the flow velocity of the water flow is reduced, and the carrying capacity of the water flow is greatly reduced, which can effectively settle the sand-cutting element 6 to intercept The sand or other solid particles that have not been removed due to the local water flow impact will eventually settle into the dirt holding space at the bottom of the spin sedimentation zone 12, and can be discharged from the spin sand interceptor from the sewage outlet 4 regularly through the sewage discharge method to realize solidification. Liquid purification and separation.

The purpose of the detailed explanations for the above-mentioned embodiments is only to explain the present invention so as to better understand the present invention. However, these descriptions cannot be construed as limiting the present invention for any reason, especially, in different The various features described in the embodiments can also be combined arbitrarily with each other to form other embodiments. Unless there is an explicit description to the contrary, these features should be understood as being applicable to any embodiment and not limited to the described embodiment. Way.

Claims (10)

1. a spin silt trap is characterized in that, described spin silt trap comprises:

Housing laterally is provided with one and supports orifice plate in the described housing, described enclosure interior is separated into the clear water collecting region on top and the spin decanting zone of bottom by described support orifice plate;

At least one cuts the sand element, be erected between the top board of described support orifice plate and described housing upper end crimping, on described support orifice plate, be provided with at least one installing hole corresponding to described section sand element, the lower end correspondence of each described section sand element is plugged in the described installing hole, and its upper end joins with described top board;

Water inlet, delivery port and sewage draining exit all are arranged on the described housing sidewall, and wherein said water inlet and described sewage draining exit are connected with described spin decanting zone, and described delivery port is connected with described clear water collecting region.

2. spin silt trap as claimed in claim 1 is characterized in that, described housing is column construction, the rounded or regular polygon of its cross section.

3. spin silt trap as claimed in claim 1 is characterized in that, described top board and described housing upper end can link together removably.

4. spin silt trap as claimed in claim 3 is characterized in that, the upper end of described section sand element and the lower surface of described top board weld together.

5. spin silt trap as claimed in claim 3 is characterized in that, the lower surface of described top board is pressed on the upper end of described section sand element.

6. spin silt trap as claimed in claim 1 is characterized in that, described section sand element is the tubular structure of the rounded or regular polygon of cross section, is laid with the water stream channel that several are made of filter bores and/or slit at the barrel of described section sand element.

7. such as each described spin silt trap in the claim 1 to 6, it is characterized in that, described water inlet is arranged on described housing sidewall middle and lower part, and described sewage outfalls setting is in described housing sidewall bottom, and described delivery port is arranged near described case top.

8. spin silt trap as claimed in claim 7 is characterized in that, the bottom of described housing is flat shape or skewed.

9. spin silt trap as claimed in claim 7 is characterized in that, the bottom of described housing is the funnel-form that top is wide, the bottom is narrow, and described sewage outfalls setting is in the bottom of described funnel-form housing bottom.

10. spin silt trap as claimed in claim 2 is characterized in that, the circumscribed circle of the axial line of described water inlet and the cross circular section of described housing or regular polygon cross section is tangent.

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