CN210125212U

CN210125212U - Drum-type microstrainer

Info

Publication number: CN210125212U
Application number: CN201920961163.4U
Authority: CN
Inventors: 范淋淋
Original assignee: Guangzhou Lanling Aquatic Products Technology Co Ltd
Current assignee: Guangzhou Lanling Aquatic Products Technology Co Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-03-06
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a drum-type microstrainer, including the box, be used for filterable cylinder and step motor, the cylinder is located the box, and step motor passes through gear system driving roller and rotates, is equipped with water inlet and delivery port on the box, and the box lower part is located to water inlet and the inside intercommunication of cylinder, delivery port, and circulating water pump is connected to the delivery port. This microstrainer monitors the water level condition in the box and through electric cabinet automatic control through liquid level controller, and degree of automation is high, can use manpower sparingly the cost, reduces equipment start-up number of times simultaneously, reduces the fault rate.

Description

Drum-type microstrainer

Technical Field

The utility model relates to a filtration equipment technical field, in particular to drum-type microstrainer.

Background

The micro-filter is a filtering device for realizing solid-liquid separation in the water treatment industry, and is commonly used for industrial sewage treatment, municipal sewage treatment, aquaculture sewage treatment, water treatment in landscape fish ponds and swimming pool engineering. However, the existing micro-filter has some problems: the sealing between the roller and the box body is not tight, so that part of dirt enters the outside of the roller, and the filtering effect is reduced; most of the existing transmission parts adopt modes of belt transmission, speed reducer transmission and the like, after the belt transmission is used for a period of time, faults such as belt fracture, impurity blockage, slippage and the like are easy to occur, the speed reducer has higher transmission cost, larger moment and high fault rate, and the power consumption of the transmission modes is higher and the fault rate is high; the micro-filter is designed to be a front-mounted water pump, water enters a rotary drum of the micro-filter after being pressurized by the water pump, and organic matters in the water are broken into fine particles by the impeller of the water pump due to the front-mounted water pump, so that the difficulty of subsequent filtration is greatly increased; most of the microfilters are made of iron or stainless steel materials, and are easy to rust and damage when used for filtering seawater or acid-base liquid. The problems of easy damage, high energy consumption and poor sealing affect the filtering effect of the micro-filter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art, provide a long service life, low, the disposable filtration efficiency of failure rate is high, practice thrift the drum-type microstrainer of energy consumption.

The technical scheme of the utility model is that: the utility model provides a drum-type microstrainer, includes the box, is used for filterable cylinder and step motor, and the cylinder is located the box, and step motor passes through gear system drive drum and rotates, is equipped with water inlet and delivery port on the box, and the water inlet communicates with the cylinder is inside, and the box lower part is located to the delivery port, and circulating water pump is connected to the delivery port. When the micro-filter is applied to the waste water treatment of aquaculture, organic matters such as feces of fishes and more thrown feed enter a rotary drum of the micro-filter under the condition that the organic matters are not broken by an impeller of the circulating water pump, so that the efficiency of one-time filtration can be improved to the maximum extent; meanwhile, the rear water pump can enable follow-up equipment to directly utilize a circulating water pump of the micro-filter as a power source, and the number of the water pumps in the whole system is reduced.

The cylinder adopts the perforated plate to make, and the outside fixed stainless steel screen cloth of perforated plate, cylinder type structure are adopted to the cylinder, and a bottom surface of cylinder is open structure, and another bottom surface is seal structure, and the cylinder is horizontal in the box. The stainless steel screen can be a compact 316L stainless steel screen, and the specific mesh can be customized according to the size of suspended substance particles in the water body to be treated.

A first gear is arranged on the periphery of one side of the roller sealing structure, a second gear is arranged on the output end of the stepping motor, and the first gear is matched with the second gear; the circle center of one side of the roller sealing structure is provided with a rotating shaft, and the rotating shaft is connected with the box body through a bearing. When the stepping motor is started, the rotating speed of the output end is gradually increased, so that the driving part cannot be stressed suddenly, the damage of the gear system caused by sudden stress is avoided, the service life of equipment can be effectively prolonged, and the failure rate is reduced; meanwhile, the gear transmission torque is small, the energy consumption of the motor is small, and the failure rate of the equipment can be further reduced.

The roller opening structure is characterized in that a roller fixing ring is arranged on the box body on one side of the roller opening structure, the outer diameter of the roller fixing ring is smaller than the inner diameter of the roller, a flange is fixed on one side of the roller opening structure, at least three supporting bearings are arranged on the flange, an annular rubber sealing ring is fixed on the inner side of the roller, and the rubber sealing ring is tightly attached to the outer portion of the roller fixing ring. When the structure is adopted, the roller is sleeved into the roller fixing ring, the inner diameter of the roller is larger, the outer diameter of the roller fixing ring is smaller, a gap is reserved between the roller and the roller fixing ring, and the elastic rubber sealing ring is bent and tightly attached to the outer surface of the roller fixing ring; under the inside circumstances that has water of cylinder, because hydraulic effect, rubber seal can laminate in the solid fixed ring's of cylinder surface more closely, even the cylinder rotates, the inside sewage of cylinder can not flow through the solid fixed ring of cylinder and the clearance between the cylinder, has guaranteed the filterable validity of microstrainer.

The micro-filter is provided with an electric cabinet, three liquid level controllers are arranged in the box body, and the liquid level controllers are connected with the electric cabinet. Inside the box, three liquid level controllers are respectively high liquid level controller, well liquid level controller and low liquid level controller, can give the electric cabinet signal transmission according to the water level change, and the electric cabinet can carry out automatic control to step motor, circulating water pump or high pressure cleaning water pump.

The lower part of the box body is provided with a high-pressure cleaning water pump which is connected with a plurality of cleaning nozzles arranged above the roller.

The inside dirty groove that collects that is equipped with of cylinder, one side in dirty groove of collection is equipped with the drain, and the drain passes the box and accesss to the outside. When the device is used, the water level to be filtered is not higher than the upper edge of the sewage collecting groove of the micro-filter, otherwise, the water to be filtered overflows the upper edge of the sewage collecting groove and is directly discharged from a sewage discharge pipe, unnecessary raw water loss is caused, and the purpose of filtering suspended matters is not achieved.

The gear system is made of nylon materials, the cleaning nozzle is made of polypropylene plastics, and the box body is made of polypropylene plastics or polyvinyl chloride plastics. The main body part of the micro-filter is made of acid-base-resistant and corrosion-resistant materials, so that the service life of the micro-filter can be prolonged.

And a bottom water outlet is formed in the bottom of the box body. Wherein, the valve of the bottom water outlet can be opened manually to discharge the water in the box body.

The improved liquid level meter is characterized in that a cover plate is arranged above the box body, frame-shaped protruding structures with the width of 3-5 cm are arranged on four sides of the cover plate, a transparent liquid level pipe is arranged on the side face of the box body, and the lower portion of the liquid level pipe is communicated with the interior of the box body through an elbow. By adopting the structure, the cover plate covers the box body, and the frame-shaped protruding structure can effectively prevent spray from overflowing from the gap between the cover plate when the micro-filter cleans the roller, thereby influencing the electricity utilization safety; an operator can directly observe the water level inside the box body through the liquid pipe when the micro-filter works.

Compared with the prior art, the utility model, following beneficial effect has:

this microstrainer monitors the water level condition in the box and through electric cabinet automatic control through liquid level controller, and degree of automation is high, can use manpower sparingly the cost, reduces equipment start-up number of times simultaneously, reduces the fault rate.

The roller of the microstrainer is connected with the stepping motor through the gear system, the torque is small, the stepping motor cannot generate large current instantly, the starting process is long, large torque instantly can not be generated on the transmission gear, the whole service life of the device can be effectively prolonged, the stability of the device in operation is improved, and the failure rate is reduced.

This microstrainer cylinder adopts folding rubber seal's technology, when accomplishing closely isolated sealed cylinder inside and outside, also can reach the frictional force minimum, can accomplish inside and outside water pressure difference of cylinder big more moreover, and inside water pressure is just big more to rubber seal's pressure, and sealed effect just is better, can guarantee disposable filter effect.

The main body parts of the micro-filter are made of PP or PVC plastic materials resistant to acid and alkali corrosion, the gear is made of nylon materials with better wear resistance, the screw is made of acid and alkali resistant pure titanium screw, the high-pressure water pump is made of 316L stainless steel pump shell and impeller, the nozzle is made of PP plastic and is made of strong corrosion resistant materials, the micro-filter is prevented from rusting and decaying in the using process, and the micro-filter can be used for sewage treatment of seawater and strong acid and alkali water.

Drawings

Fig. 1 is a schematic front structural view of the microfilter.

Fig. 2 is a schematic side view of the internal structure of the microfilter.

Fig. 3 is a schematic view of the back structure of the microfilter.

Fig. 4 is a schematic view of the microfilter in use.

Fig. 5 is a partially enlarged view showing a structure of one side of the opening of the drum.

Wherein, as shown in the figure, 1 is a cover plate, 2 is a sewage draining outlet, 3 is an electric cabinet, 4 is a high-pressure cleaning water pump, 5 is a water inlet, 6 is a bottom water draining outlet, 7 is a liquid level pipe, 8 is a cleaning nozzle, 9 is a stepping motor, 10 is a rotating shaft, 11 is a supporting bearing, 12 is a water outlet, 13 is a gear system, 14-1 is a high liquid level controller, 14-2 is a middle liquid level controller, 14-3 is a low liquid level controller, 15 is a roller, 16 is a roller fixing ring, 17 is a sewage collecting tank, 18 is a water tank, 19 is a circulating water pump, 20 is a water level line, 21 is a rubber sealing ring, and 22 is a flange.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

Examples

The embodiment provides a drum-type microstrainer, as shown in fig. 1-3, including the box, be used for filterable cylinder 15 and step motor 9, the cylinder is located the box, and step motor passes through gear system 13 drive roller and rotates, is equipped with water inlet 5 and delivery port 12 on the box, and water inlet and inside intercommunication of cylinder, box lower part are located to the delivery port, and circulating water pump 19 is connected to the delivery port. When the micro-filter is applied to the waste water treatment of aquaculture, organic matters such as feces of fishes and more thrown feed enter a rotary drum of the micro-filter under the condition that the organic matters are not broken by an impeller of the circulating water pump, so that the efficiency of one-time filtration can be improved to the maximum extent; meanwhile, the rear water pump can enable follow-up equipment to directly utilize a circulating water pump of the micro-filter as a power source, and the number of the water pumps in the whole system is reduced.

The cylinder adopts the perforated plate to make, and the outside of perforated plate is fixed with dense 316L stainless steel screen cloth, and the cylinder is the cylinder type structure, and a bottom surface of cylinder is open structure, and another bottom surface is seal structure, and the cylinder is horizontal in the box. The specific mesh number of the stainless steel screen can be customized according to the size of suspended particles in the water body to be treated. A first gear is arranged on the periphery of one side of the roller sealing structure, a second gear is arranged on the output end of the stepping motor, and the first gear is matched with the second gear; the centre of a circle of one side of the roller sealing structure is provided with a rotating shaft 10, and the rotating shaft is connected with the box body through a bearing. When the stepping motor is started, the rotating speed of the output end is gradually increased, so that the driving part cannot be stressed suddenly, the damage of a gear system caused by sudden stress is avoided, the service life of equipment can be effectively prolonged, and the failure rate is reduced; meanwhile, the gear transmission torque is small, the energy consumption of the motor is small, and the failure rate of the equipment can be further reduced. As shown in fig. 5, a roller fixing ring 16 is arranged on the box body on one side of the roller opening structure, the outer diameter of the roller fixing ring is smaller than the inner diameter of the roller, a flange 22 is fixed on one side of the roller opening structure, three supporting bearings 11 are arranged on the flange, an annular rubber sealing ring 21 is fixed on the inner side of the roller, and the rubber sealing ring is tightly attached to the outer portion of the roller fixing ring. When the roller fixing ring is installed, the roller is sleeved in the roller fixing ring, the inner diameter of the roller is larger, the outer diameter of the roller fixing ring is smaller, a gap is reserved between the roller and the roller fixing ring, and the elastic rubber sealing ring is bent and tightly attached to the outer surface of the roller fixing ring; under the inside circumstances that has water of cylinder, because hydraulic effect, rubber seal can laminate in the solid fixed ring's of cylinder surface more closely, even the cylinder rotates, the inside sewage of cylinder also can not flow through the solid fixed ring of cylinder and the clearance between the cylinder, has guaranteed the filterable validity of microstrainer.

The lower part of the box body is provided with a high-pressure cleaning water pump 4 which is connected with a plurality of cleaning nozzles 8 arranged above the roller, and the cleaning nozzles are positioned between the roller and the box body. The inside dirty groove 17 that is equipped with of cylinder, one side in dirty groove of collection is equipped with drain 2, and the drain passes the box and accesss to the outside, and dirty groove of collection is located the washing nozzle below. As shown in figure 4, when in use, the water tank 18 is connected with the water inlet of the micro-filter, the water level to be filtered is not higher than the upper edge of the sewage collecting groove of the micro-filter, otherwise, the water to be filtered can overflow the upper edge of the sewage collecting groove and is directly discharged from the sewage discharge pipe, unnecessary raw water loss is caused, and the purpose of filtering suspended matters can not be achieved.

The first gear and the second gear are both made of nylon materials, the cleaning nozzle is made of polypropylene plastics, and the box body is made of polypropylene plastics or polyvinyl chloride plastics. The main body part of the micro-filter is made of acid-base-resistant and corrosion-resistant materials, so that the service life of the micro-filter can be prolonged.

The bottom of the box body is provided with a bottom water outlet 6. Wherein, the valve of the bottom water outlet can be opened manually to discharge the water in the box body. The cover plate 1 is arranged above the box body, the four sides of the cover plate are provided with frame-shaped protruding structures with the width of 3-5 cm, the side face of the box body is provided with a transparent liquid level pipe 7, and the lower portion of the liquid level pipe is communicated with the interior of the box body through an elbow. The cover plate is covered on the box body, and the frame-shaped protruding structure can effectively prevent spray from overflowing from the gap of the cover plate when the micro-filter is used for cleaning the roller, so that the electricity utilization safety is influenced; an operator can directly observe the water level inside the box body through the liquid pipe when the micro-filter works.

An electric cabinet 3 is arranged outside the box body of the micro-filter, three liquid level controllers are arranged inside the box body, and the liquid level controllers are connected with the electric cabinet. The three liquid level controllers are respectively a high liquid level controller 14-1, a middle liquid level controller 14-2 and a low liquid level controller 14-3, signals can be transmitted to the electric control box according to the water level change, and the electric control box can automatically control the stepping motor, the circulating water pump or the high-pressure cleaning water pump.

The application method and principle of the drum-type micro-filter are shown in fig. 4, the micro-filter is used for solid-liquid separation in water treatment industry, and is commonly used for water treatment in industrial sewage treatment, municipal sewage treatment, aquaculture sewage treatment, landscape fish ponds and swimming pool engineering. The water inlet is to the water of waiting to filter of inputing in the cylinder, and the water in the cylinder passes through the filter screen and flows outside the cylinder to the back, and the solid particle of aquatic is intercepted by stainless steel screen cloth and perforated plate on the cylinder, and the water level after the filtration is between box and cylinder, and circulating water pump is connected to the delivery port of box, and the water between microstrainer box and the cylinder is taken out by circulating water pump, and the water level can descend after drawing water. After the water level control device runs for a period of time, when more and more dirt is intercepted by the roller, the filtering holes of the roller are blocked by solid matters, the resistance to water flow is larger and larger, the filtering speed is reduced, but the water discharge flow of the circulating water pump is stable and unchanged, and then the water level outside the roller is continuously reduced.

When the water level drops to the position where the high liquid level controller is located, the high liquid level controller can transmit an electric signal to the electric cabinet, and the electric cabinet starts the stepping motor and the high-pressure cleaning water pump. Step motor passes through gear system and drives the cylinder and slowly rotate, and simultaneously, the high pressure cleaning water pump takes water out from the box, jets out from the nozzle again, and the high pressure water washes the adhesion at the inboard filth of cylinder, just in time falls into the dirt collecting tank of arranging the inboard top of rotary drum in, has the blow off pipe that leads to the box outside below the dirt collecting tank, and the filth is discharged from the blow off pipe. When the water level drops to the low-level controller, the electric control box can control the circulating water pump of the micro-filter to stop working, so that the water level in the box body rises, and meanwhile, the backwashing operation cannot be stopped. And when the back flushing is finished and the water level outside the roller returns to be higher than the middle liquid level controller again, the circulating water pump is started and enters the filtering state again.

In the embodiment, preferably, the electric cabinet is purchased from Qingdao sima electric appliance company, Inc. model number HE-354520, the liquid level controller is purchased from Ningbo Ming Rui sensor company, Inc. model number RG-10110P, the stepping motor is purchased from Beijing micro-special micro-electric machine manufacture company, Inc. model number 6RK 140-140 RG-CF/6GU150RC, the high-pressure cleaning water pump is purchased from Guangdong campsis Pump industry, Inc. model number CMF2-50-A-W-G-BQBE, and other electric appliance accessories are purchased from China Deli West China Consortium group, Inc. series accessories. In addition to the above-mentioned embodiments, some components may be modified according to actual conditions. For example, the stainless steel filter screen can be replaced by a nylon filter screen. Such variations are intended to be within the scope of this patent.

As described above, the present invention can be realized well, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present invention are intended to be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a drum-type microstrainer which characterized in that, includes the box, is used for filterable cylinder and step motor, and the cylinder is located the box, and step motor passes through gear system drive roller and rotates, is equipped with water inlet and delivery port on the box, and water inlet and inside intercommunication of cylinder, the box lower part is located to the delivery port, and circulating water pump is connected to the delivery port.

2. The drum type microfilter of claim 1, wherein the drum is made of a perforated plate, a stainless steel screen is fixed outside the perforated plate, the drum is of a cylindrical structure, one bottom surface of the drum is of an open structure, the other bottom surface of the drum is of a sealed structure, and the drum is horizontally arranged in the box body.

3. The drum type microfilter of claim 2, wherein a first gear is provided on the outer circumference of one side of the drum sealing structure, a second gear is provided on the output end of the stepping motor, and the first gear is matched with the second gear; the circle center of one side of the roller sealing structure is provided with a rotating shaft, and the rotating shaft is connected with the box body through a bearing.

4. A drum type microfilter according to claim 2, wherein a drum fixing ring is provided on the casing on the side of the drum opening structure, the outer diameter of the drum fixing ring is smaller than the inner diameter of the drum, a flange is fixed on the side of the drum opening structure, at least three support bearings are provided on the flange, an annular rubber sealing ring is fixed on the inner side of the drum, and the rubber sealing ring is tightly attached to the outer portion of the drum fixing ring.

5. The drum type microfilter according to claim 1, wherein the microfilter is provided with an electric cabinet, three level controllers are arranged inside the cabinet, and the level controllers are connected with the electric cabinet.

6. A drum type microfilter as claimed in claim 1, wherein the lower part of the box is provided with a high pressure cleaning water pump connected to a plurality of cleaning nozzles provided above the drum.

7. The drum type microfilter according to claim 1, wherein a sewage collecting tank is provided inside the drum, and a sewage drain is provided at one side of the sewage collecting tank, and passes through the tank to the outside.

8. The drum type microfilter of claim 6, wherein said gear system is made of nylon material, the cleaning nozzle is made of polypropylene plastic, and the housing is made of polypropylene plastic or polyvinyl chloride plastic.

9. The drum type microfilter of claim 1, wherein said bottom of said housing is provided with a bottom drain.

10. The drum type microfilter according to claim 1, wherein a cover plate is provided above the box body, and four sides of the cover plate are provided with frame-shaped protrusion structures with a width of 3-5 cm; the side of the box body is provided with a transparent liquid level pipe, and the lower part of the liquid level pipe is communicated with the inside of the box body through an elbow.