CN2448431Y - Backwashing device of solid-liquid separator - Google Patents

Abstract

The back washing device for solid-liquid separator includes one overflow tank with downward inclined filter screen in the overflow outlet, one squeezing unit connected to the end of the filter screen, one collecting tank below the separator, and one back washing unit below the filter screen.

Description

Backwashing device of solid-liquid separator

The utility model relates to a solid-liquid separator, in particular to a backwashing device installed on the filter screen of the solid-liquid separator. Wastes such as excrement produced by general fishery and animal husbandry, if they are directly discharged into river water sources without treatment, will cause environmental pollution and become one of the main causes of environmental pollution today. Therefore, how to deal with these discharges It is a top priority, so there are operators who manufacture solid-liquid separators as shown in Figure 1 and Figure 2 for preliminary treatment. At the overflow of the overflow tank 11, a filter screen 12 is obliquely provided downwards, and in the body 1 below the filter screen 12, a collecting plate 13 and a discharge tank 14 are provided, and then, on the top of the filter screen 12 The two sides of the body 1 of the body 1 are oppositely provided with a driving cable 15 driven by the motor 10 to reciprocate synchronously, and a water pipe 17 arranged with nozzles 16 is fixed between the two driving cables 15. The water in the reservoir 18 can be delivered to the water pipe 17 via the pump 19 and sprayed out from the nozzles 16 .

Therefore, the use of the existing solid-liquid separator is to introduce the waste water to be treated into the overflow tank 11 provided above the body 1, and then make the waste water overflow from the overflow and flow into the filter screen 12, so that The solid matter contained in the waste water is filtered and blocked by the filter screen 12, and the waste water in the overflow tank 11 is continuously overflowed and pushed by the filter, so that the solid matter will slide down and go out. The sewage of filter screen 12 then flows into discharge tank 14 and then discharges; The effect of liquid separation will be greatly affected and not obvious, so stop the overflow of waste water in the overflow storage tank 11 at this moment, and then start the motor 10 and the pump 19 to make the driving cable 15 drive the water pipe 17 to do back and forth on the filter screen 12 Move back and forth, and spray out powerfully by nozzle 16 with clean water, make the operation of cleaning the solid matter that is blocked on the filter screen 12; The following disadvantages:

1. The filter screen 12 is cleaned by spraying from top to bottom, so the long fibers stuck on the filter screen 12 can not be sprayed down, but will be stuck on the filter screen 12 under the pressure of the water column spraying. In the mesh gap, not only the removal of the solids stuck on the filter screen 12 is of no help, but more counterproductive.

2. The water pipe 17 device of spraying water is driven by driving cable, so after long-term use, breakage and breakdown take place easily.

3. The reciprocating movement of the water pipe 17 device for spraying water is caused by the setting of the micro switches at both ends, under the touch start of the water pipe 17, and then controlled by the circuit, the motor 10 produces forward and reverse rotation, so it is not only easy to occur faults and higher costs.

4. In order to take into account that the entire width of the filter screen 12 can be washed, a plurality of nozzles 16 must be arranged on the water pipe 17, so that the water pressure of the spray is distributed to each nozzle 16 and the pressure of the spray is reduced, so that the cleaning The effect is poor.

The purpose of this utility model is to provide a backwashing device for a solid-liquid separator, by means of which the solid matter attached to the filter screen can be easily separated from the filter screen and washed down, improving the cleaning effect and reducing failures rates and maintenance costs.

The purpose of this utility model is achieved in the following way: a backwashing device of a solid-liquid separator, including a filter screen inclined downward at the overflow outlet of the storage overflow tank provided above the body of the solid-liquid separator, and There is a pressing device connected to the end of the screen, a collection tank is located under the machine body, and a backwashing device is installed under the filter screen. The backwashing device includes two parallel shafts and a reciprocating shaft; the end of the shaft An arm is pivoted eccentrically; the end of the reciprocating shaft is pivotally connected to a tube body, and a transfer seat is provided on the same centerline as the reciprocating shaft, and the end of the connecting arm is pivotally connected to the transfer seat; the transfer seat A rod body is pivotally connected with the tube body again.

The reciprocating shaft is divided into two sections, which are pivotally connected by screw connection, and the two sections can be rotated each other.

A worm gear is provided on the rotating shaft to mesh with a worm on a transmission shaft.

The other end of the reciprocating shaft is pivotally connected to a connecting rod, and one end of the connecting rod is pivotally connected to a rod body which is eccentrically connected to the end of a transmission shaft.

A cover plate is arranged on the body of the solid-liquid separator above the filter screen.

Therefore, through the rotation of the transmission shaft, driven by the connecting arm and the connecting rod at the end of the rotating shaft, the transfer seat produces reciprocating rotation, and the reciprocating shaft produces linear reciprocating movement, and then the water spray pipe fixed on the tube body produces synchronous reciprocation Swivel and move left and right to achieve full reverse flushing of the filter.

To sum up, the utility model is to install the cleaning equipment on the back of the filter screen, and move up and down and left and right with a single nozzle from the back of the filter screen to carry out comprehensive powerful reverse spray cleaning of the filter screen, so that the stuck The solids fixed on the filter screen are easily separated from the filter screen under the powerful and uniform comprehensive spraying of the single nozzle moving up and down and left and right in the reverse direction to prevent the attachment of solids. At the same time, because the whole mechanism is adopted The action is completed mechanically, so there are no disadvantages such as inconvenience and failure caused by electrical control, so that the filter cleaning effect is better.

The utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the following detailed description and the mentioned embodiments are for illustration only, and should not limit the utility model. Because various equivalent changes and modifications made within the creative spirit and scope of the present utility model can be clearly understood from these detailed descriptions for those skilled in the art.

Figure 1 is an overall schematic diagram of an existing solid-liquid separator.

Fig. 2 is a side sectional view of a conventional solid-liquid separator.

Fig. 3 is the overall schematic diagram of the utility model.

Fig. 4 is a side sectional view of the utility model.

Fig. 5 is a three-dimensional schematic diagram of a backwashing device of the present invention.

Fig. 6 is a front sectional view of the backwashing device of the present invention.

Fig. 7 is a schematic side view of the backwashing device of the present invention.

Please refer to Fig. 3 and shown in Fig. 4, the structure of the solid-liquid separator of the present invention is also provided with a storage overflow tank 21 above a body 2, and a filter is arranged obliquely downward at the overflow outlet of the storage overflow tank 21. net 22, and the bottom of the body 2 is provided with a collecting tank 23, and then a backwashing device 3 is set up at an appropriate place below the filter screen 22, and the backwashing device 3 is equipped with a water spray pipe 4, and the spray pipe 4 is installed on the backwashing device 3 The end of the water pipe 4 is provided with a nozzle 41, and the operation of spraying the filter screen 22 by the nozzle 41; The moisture contained in the filtered and fallen solids can be squeezed out again to make the solids drier; in addition, on both sides of the body 2 above the filter screen 22, there are baffles 25 extending inwards, And a cover plate 26 is fixed between the two baffle plates 25 to cover the top of the filter screen 22 .

And the structure of backwash device 3 please refer to Fig. 5, shown in Fig. 6, it is to comprise a drive shaft 31 that is driven to rotate by the motor 30 that establishes on body 5, and it is provided with a worm screw 311 in appropriate place in the middle, can drive a device The worm gear 321 on the rotating shaft 32 rotates, and one end of a rod body 322 is fixed at the end of the rotating shaft 32, and the other end of the rod body 322 is pivotally connected to one end of a connecting arm 33; then the other end of the connecting arm 33 is pivotally connected On the pivot ear 341 of a transfer seat 34, the transfer seat 34 is pivoted on the protruding flange portion 51 of the body 5 and can rotate freely; The end of the rod body 312 is pivotally connected to a connecting rod 35, and then the other end of the connecting rod 35 is pivotally connected to one end of the reciprocating shaft 36, and the reciprocating shaft 36 is installed axially through the aforementioned flange portion 51, The reciprocating shaft 36 can move freely in the flange portion 51, so under the direct drive of the rod body 312 and the connecting rod 35, the reciprocating driving force on the reciprocating shaft 36 can be equalized, so that the tube body 37 can swing more smoothly. At the same time, the reciprocating shaft 36 is divided into two sections, which are connected in a screwed manner (as shown in Figure 6 ), and then the end of the reciprocating shaft 36 protruding out is pivotally connected with the middle of the tube body 37 at an appropriate place, and then, Then make another pivot ear 342 of the transfer seat 34 and the lower end of the pipe body 37 to be pivotally connected with a rod body 38 , so that the water spray pipe 4 is fixedly arranged on the pipe body 37 .

The action of the water spray pipe 4 is shown in Figures 6 and 7. When the transmission shaft 31 is driven by the motor 30 to rotate, the worm 311 on the transmission shaft 31 will drive the worm wheel 321 to rotate the shaft 32, and then the shaft 32 at the end The rod body 322 drives the connecting arm 33 to reciprocate, so that the transfer seat 34 reciprocates back and forth on the flange portion 51, and driven by the connection of the rod body 38, the tube body 37 is moved to the reciprocating shaft rod 36. In addition, another rod body 312 at the end of the transmission shaft 31 will also be driven to revolve, thereby causing the eccentrically pivoted connecting rod 35 to produce a reciprocating motion, so that the shaft is arranged in the flange portion 51 The reciprocating shaft 36 of the reciprocating shaft does a linear reciprocating action, so that the reciprocating shaft 36 promotes the pipe body 37 pivoted at its end, and simultaneously moves left and right; therefore, the water spray pipe 4 (such as Shown in Fig. 4), can swing back and forth along the length of filter screen 22, simultaneously, move back and forth along the width of filter screen 22 again, so the spraying scope that water spray pipe 4 carries out reaches whole filter screen 22; the single nozzle 41 is used for powerful comprehensive spray washing, the pressure of the spray washing is strong and uniform, and the back of the filter screen 22 faces outwards for reverse spray washing, so that the solid matter stuck on the filter screen 22 It can be easily washed down, so that the cleaning effect of the filter screen is better and cleaner, and the sticking and adhesion of solids are greatly reduced; at the same time, except for the motor 30 driven by the entire backwashing device 3, the entire mechanism is mechanical The action of the formula is completed, so there is no inconvenience and faults caused by electrical control. Secondly, when spraying, the sewage will be sprayed downward through the filter screen 22, which can be blocked by the cover plate 26. Resistant to splashing water.

To sum up, the structure of this utility model is to improve the use of the known solid-liquid separator cleaning device, which is not easy to clean. It can not only improve the cleaning effect, but also reduce the cost of failure and maintenance. It is not a known device. It can be compared, so a patent application is filed.

Claims (5)

1. A backwashing device for a solid-liquid separator, characterized in that it includes a filter screen (22) inclined downward at the overflow of the overflow tank (21) provided above the body of the solid-liquid separator, and A squeezing device (24) is connected to the end of the filter screen (22), and a collection tank (23) is provided at the bottom of the machine body, and a backwashing device (3) is arranged at the bottom of the filter screen. The backwashing device (3) It mainly includes two mutually parallel shafts (32) and a reciprocating shaft (36); an arm (33) is eccentrically pivoted at the end of the shaft (32); Connect a pipe body (37), and set a transfer seat (34) which belongs to the same center line as the reciprocating shaft rod (36), and the end of the connecting arm (33) is pivotally connected to the transfer seat (34) ; And between the shifting seat (34) and the tube body (37), use a bar body (38) to pivot again. 2. A backwashing device for a solid-liquid separator according to claim 1, characterized in that the reciprocating shaft (36) is divided into two sections, which are pivotally connected by a screw connection, and the two sections can rotate mutually. 3. A backwashing device for a solid-liquid separator according to claim 1, characterized in that a worm gear (321) is provided on the rotating shaft (32) to mesh with a worm (311) provided on a transmission shaft (31). 4. The backwashing device of a solid-liquid separator according to claim 1, characterized in that the other end of the reciprocating shaft (36) is pivotally connected to a connecting rod (35), and one end of the connecting rod (35) is connected to a The end of the drive shaft (31) is eccentrically pivoted to the rod body (312). 5. A backwashing device for a solid-liquid separator according to claim 1, characterized in that a cover plate (26) is provided on the body (2) of the solid-liquid separator above the filter screen (22).

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