CN209997287U - Filter screen cleaning device for pulp dewatering equipment - Google Patents

Abstract

The utility model belongs to the technical field of papermaking equipment, a filter screen belt cleaning device for paper pulp dewatering equipment is related to, it is including the nozzle that is located the gauze below, water purification pipe and water pump, still including setting up the collection box in the gauze top, it is on a parallel with the gauze setting to collect the box, the lower surface of collecting the box is equipped with the distributive ridge, the distributive ridge sets up along the length direction who collects the box, the distributive ridge both sides are equipped with the guiding gutter, the guiding gutter is on a parallel with the distributive ridge setting, the transversal arch of personally submitting of guiding gutter, the guiding gutter is equipped with the collecting vat to the distributive ridge side, the collecting vat is located the guiding gutter below, the width of collecting vat is less than the width of guiding gutter, collecting vat bottom notch department has connect the sewage pipe, the utility model discloses have and can in time collect the plug that washes off, prevent that the plug from piling up in the gauze bottom, avoid appearing the condition that the secondary washed simultaneously, the water economy.

Description

Filter screen cleaning device for pulp dewatering equipment

Technical Field

The utility model belongs to the technical field of papermaking equipment's technique and specifically relates to a filter screen belt cleaning device who relates to kinds are used for paper pulp dewatering equipment.

Background

The pulp is dewatered by dewatering equipment after it is initially formed, the aspect is to concentrate the pulp to specific consistency for subsequent processing, and the aspect is to remove fines from the pulp slurry to ensure that the final paper has sufficient structural strength.

The most commonly used dewatering devices are mainly divided into three types, namely a centrifugal type dewatering device, a compression roller type dewatering device and an inclined vertical screen frame type dewatering device, and the dewatering devices respectively have advantages and disadvantages. If in the aspect of improving work efficiency, reducing equipment cost and reducing energy consumption etc. the consideration, then mostly chooses for use oblique vertical screen frame formula dewatering equipment, and its filter area is big, and simple structure need not additionally to set up power, utilizes the gravity of paper pulp itself can realize filtering.

At present, chinese patent No. CN202577035U discloses kinds of pulp dewatering racks, which include a rack with a frame structure or a rack with wall panels on both sides, an inclined frame is provided on side of the rack, a transverse grid type scraper is provided on the inclined frame, a gauze is provided on the grid type scraper, the periphery of the gauze is buckled on the periphery of the inclined frame, the upper end of the inclined frame is connected with the discharge port of the hydrous pulp tank, and the lower end of the inclined frame is provided with a dehydrated pulp tank.

When the screen is used for filtering, the situation that paper fibers block the mesh holes inevitably occurs, and the dewatering efficiency is seriously affected, so that the screen needs to be cleaned regularly. The blockage is simply scraped by a scraper blade directly, but the cleaning mode is difficult to completely scrape out the paper fibers embedded in the mesh holes and is easy to damage the gauze. Compared with the prior art, the screen is cleaned in a backflushing mode, so that the screen is slightly damaged and can be cleaned.

In the actual cleaning process, because the area of the gauze of the pulp dewatering rack is large, when areas are washed, sewage with the clogs is prone to flow to other areas below and deposit in the areas, so that the clogs at the bottom of the gauze are gradually accumulated and difficult to wash away, the washed clogs are washed away again, the workload is increased, more purified water is consumed, sewage is increased, and the burden of subsequent sewage treatment equipment is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a a filter screen belt cleaning device for paper pulp dewatering equipment, it has the plug that can in time wash down and collects, prevents that the plug from piling up in the gauze bottom, avoids appearing the condition that the secondary washed simultaneously, and the water economy resource alleviates follow-up sewage treatment device's burden, reduces the effect of energy consumption.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a filter screen belt cleaning device for paper pulp dewatering equipment, including nozzle and the water purification pipe that is located the gauze below, water purification pipe is nozzle termination dorsad has the water pump, still including setting up the collection box in the gauze top, collect the box and be on a parallel with the gauze setting, the lower surface of collecting the box is equipped with the distributive ridge, the distributive ridge sets up along the length direction who collects the box, and the distributive ridge both sides are equipped with the guiding gutter, the guiding gutter is on a parallel with the distributive ridge setting, and the transversal arch of personally submitting of guiding gutter, the guiding gutter is equipped with the collecting vat dorsad distributive ridge side, the collecting vat is located the guiding gutter below, and the width of collecting vat is less than the width of guiding gutter, and collecting tank bottom end notch department has connect the.

According to the technical scheme, the water pump conveys clean water into the water purifying pipe, then the clean water is sprayed out from the nozzle to flush the gauze, the sewage wrapped with the blocking objects still has constant kinetic energy and impacts on the collecting box and is divided into two parts by the water dividing ridge, the two parts of sewage respectively flow along the two flow guide grooves on the two sides of the water dividing ridge, the flow guide grooves are arched, the flowing direction of the sewage is gradually changed, the sewage finally flows downwards, flows into the collecting groove below the flow guide grooves and is discharged by the sewage pipe, in the process, as long as the sewage has enough initial kinetic energy and has enough speed in the flowing process along the inner walls of the flow guide grooves, the centrifugal force corresponding to the flowing of the sewage is larger than the self-gravity of the sewage, the sewage is always attached to the inner walls of the flow guide grooves and can smoothly flow into the collecting groove without falling down midway, therefore, the collecting box can timely collect the flushed blocking objects, the blocking objects are prevented from being accumulated at the bottom of the gauze, the secondary flushing is avoided, the burden of subsequent sewage treatment equipment is reduced, and the energy.

The utility model discloses step sets up to be equipped with the baffle on the collecting vat is towards the inside wall of distributive ridge side, and the baffle is on a parallel with the axis setting of collecting vat.

Through adopting above-mentioned technical scheme, sewage flows into the collecting vat from the side that the collecting vat dorsad divided water ridge, and to the side that the collecting vat is towards divided water ridge in the collecting vat to strike on the baffle, be stopped by the baffle, sewage that has and decide kinetic energy can not spill over from the collecting vat towards the side that divides water ridge, thereby flow into the sewage pipe of collecting vat bottom smoothly.

The utility model discloses step sets up to the baffle side that is dorsad the water diversion ridge down the slope setting.

By adopting the technical scheme, the baffle back to the water distribution ridge inclines downwards, and when sewage impacts on the baffle and flows along the lower surface of the baffle back to the water distribution ridge, the flowing direction of the sewage is inclined downwards, so that the sewage can smoothly flow into the recovery collecting tank.

The utility model discloses advance step and set up to be equipped with the guide plate on the inside wall of collecting vat side dorsad water diversion ridge, the guide plate is perpendicular with the inside wall of collecting vat, and the guide plate bottom sets up towards the sewage pipe slope.

Through adopting above-mentioned technical scheme, when sewage got into the collecting vat from the guiding gutter, earlier with the guide plate contact, the guide plate bottom inclines towards the sewage pipe for originally around the sewage flow direction change that collecting vat circumference flows, produce the minute speed that flows towards the sewage pipe, thereby guide sewage flow to the sewage pipe more fast, alleviate the water storage pressure of collecting vat.

The utility model discloses advance step and set up to still including the screw rod and the 0 guide bar of setting on the frame, the 1 screw rod is on a parallel with the topside setting of frame, and the 2 screw rod is connected with the frame rotation, and the screw rod is worn to locate on collecting the box, and screw rod and collection box screw-thread fit, screw rod termination have the motor, the guide bar links to each other with the frame, and the guide bar is worn to locate on collecting the box, the guide bar with collect box sliding fit.

By adopting the technical scheme, when the gauze is cleaned, the gauze is washed from the top of the gauze, the gauze at fixed height is cleaned and then cleaned downwards, in the process, the nozzle and the collection box need to move synchronously and move from the side of the frame to the side of another , wherein cleaning personnel can stand below the gauze to hold the nozzle to move, the collection box is positioned above the gauze and is inconvenient to operate manually, the motor drives the screw to rotate, and the collection box cannot rotate under the limitation of the screw and the guide rod, so that the collection box can move along the length direction of the screw, namely the collection box can move from the side of the frame to the side of the frame automatically without manual operation.

The utility model discloses advance step setting to be equipped with the mount pad in pairs on the frame, two the 0 th mount pad is located the frame both sides respectively, and the 1 th mount pad is put on the shelf and is equipped with 2 drainage groove, the sewer is collected box end dorsad and is located drainage inslot, screw rod both ends are rotated and are put up and establish on two mount pads, rotate with the frame through two mount pads and are connected, guide bar both ends rigid coupling is on two mount pads, links to each other with the frame through two mount pads.

Through adopting above-mentioned technical scheme, set up drainage groove, be parallel with the moving direction who collects the box, in the sewage that flows out from the sewage pipe can flow into drainage groove all the time, need not to set up very long sewage pipe and remove along with collecting the box.

The utility model discloses advance step and set up to the frame both sides all are equipped with the second mount pad in pairs, the rotating frame is equipped with the second screw rod on the second mount pad, the second screw rod is on a parallel with the side setting of frame, and the second screw rod wears to locate on the mount pad that corresponds, second screw rod and mount pad screw-thread fit, and second screw rod end has connect the second motor.

Through adopting above-mentioned technical scheme, similar with the screw rod, the second screw rod of second motor drive is rotatory, makes the length direction removal of collecting the box along the frame, and the gauze clean up of each height department is gradually with collecting the box to the nozzle of being convenient for.

The utility model discloses step sets up to second mount pad is put on the shelf and is equipped with the second drainage groove, the end in drainage groove is located directly over the second drainage groove.

Through adopting above-mentioned technical scheme, when the gauze of clearance not co-altitude department, the sewage that flows in the drainage inslot flows into the second drainage groove all the time, so only need set up sewage collection device in second drainage groove bottom below can.

To sum up, the utility model discloses a beneficial technological effect does:

1. the flushed blockage can be collected in time, the blockage is prevented from being accumulated at the bottom of the gauze, the condition of secondary flushing is avoided, water resources are saved, the burden of subsequent sewage treatment equipment is reduced, and the energy consumption is reduced;

2. through th screw rod and second screw rod, the collection box can be on its own move above the gauze, need not the clearance personnel manual control.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of a collecting box used in the embodiment;

FIG. 3 is a schematic structural diagram for embodying a collecting tank in the embodiment.

In the figure, 1, a nozzle, 2, a purified water pipe, 3, a water pump, 4, a collecting box, 5, a sewage pipe, 6, a frame, 41, a water diversion ridge, 42, a diversion trench, 43, a collecting trench, 44, a baffle, 45, a diversion plate, 61, an th screw rod, 62, a th guide rod, 63, a th motor, 64, a th mounting seat, 65, a th diversion trench, 66, a second mounting seat, 67, a second screw rod, 68, a second motor, 69 and a second diversion trench.

Detailed Description

The present invention will be described in further detail in with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an a filter screen belt cleaning device for paper pulp dewatering equipment, including water pump 3, water purification pipe 2 and nozzle 1 for wash down the plug on the gauze, still including collecting box 4 and sewer pipe 5, be used for collecting the sewage of wrapping up in the sewage that has the plug, prevent that it from flowing to on the gauze of below.

Referring to fig. 1, the water purifying pipe 2 is connected to the water pump 3, and the is connected to the nozzle 1, which are all located under the gauze, and the nozzle 1 is directed obliquely upward toward the gauze.

Referring to fig. 1, the collection box 4 is parallel to the gauze, always faces the nozzle 1, and moves along with the movement of the nozzle 1, the sewage pipe 5 is connected to the bottom end of the collection box 4, and discharges the sewage collected by the collection box 4. when cleaning the gauze, the top end of the gauze is flushed, the nozzle 1 and the collection box 4 move from the side of the frame 6 to the other side, and after cleaning the gauze at the height, the gauze is gradually moved downwards, and the gauze at the lower height is cleaned.

Referring to fig. 1, pairs of second mounting seats 66 are respectively disposed on two sides of the frame 6, wherein pairs are taken as an example, the two second mounting seats 66 are respectively disposed at the top end and the bottom end of the frame 6, a second screw 67 is disposed on the upper rotating frame, and the second screw 67 is disposed parallel to the side edge of the frame 6, two second motors 68 are further respectively disposed on two sides of the frame 6, and the shafts of the second motors 68 are connected with the corresponding second screws 67 to drive the second screws 67 to rotate.

Referring to fig. 1, -th mounting seats 64 are respectively sleeved on the two second screws 67, and the two -th mounting seats 64 are in threaded fit with the corresponding second screws 67 and move along the length direction of the second screws 67 when the second screws 67 rotate.

Referring to fig. 1, the two th mounting seats 64 are always located at the same height , and are provided with 0 th screws 61 and 1 th guide rods 62, wherein the 2 th screws 61 and the 3 th guide rods 62 are both parallel to the top edge of the frame 6 and penetrate through the collection box 4, wherein the 4 th screws 61 are rotatably connected with the 5 th mounting seats 64 and are in threaded fit with the collection box 4, the th guide rods 62 are fixedly connected with the th mounting seats 64 and are in sliding fit with the collection box 4, furthermore, the th th mounting seats 64 are fixedly connected with th motors 63, and shafts of the th motors 63 are connected with the th screws 61 to drive the th screws 61 to rotate.

With the above arrangement, the th motor 63 rotates the th screw 61 to move the collection box 4 in the longitudinal direction of the th screw 61, i.e., from the side to the side of the frame 6. the second motor 68 rotates the second screw 67 to move the entire collection box 4, including the th mount 64, the th screw 61, the th guide rod 62, and the th screw 67 in the longitudinal direction of the second screw 67, and to move the entire collection box 4 from the top end of the frame 6 to the bottom end of the frame 6 in sequence.

Referring to fig. 1, drainage grooves 65 are also erected on the two th mounting seats 64, and the end of the sewage pipe 5, which faces away from the collecting box 4 , always extends into the drainage groove 65 to drain sewage to the th drainage groove 65.

Referring to fig. 1, the th drainage groove 65 is closed, the th drainage groove is open, a second drainage groove 69 is arranged right below the open end, when the th drainage groove 65 moves along the length direction of the frame 6 along with the th installation seat 64, the sewage flowing out of the th drainage groove 65 always flows into the second drainage groove 69, and the second drainage groove 69 is spanned on the two second installation seats 66 on the side of the frame 6.

Referring to fig. 2, the upper surface and both side walls of the collecting box 4 are flat, and the lower surface thereof is provided with a water dividing ridge 41. The water diversion ridge 41 is of a triangular pyramid structure, is located in the middle of the lower surface of the collection box 4, and is arranged along the length direction of the collection box 4. After the sewage impacts the water diversion ridge 41, the sewage is diverted to the two sides of the water diversion ridge 41, and the bottom end of the water diversion ridge 41 is relatively sharp, so that the sewage is less splashed.

Referring to fig. 2, the diversion ridge 41 is symmetrically provided with a diversion trench 42 and a collection trench 43 on two sides, which are parallel to each other, wherein the diversion trench 42 is in a circular arch shape, the side edge of the diversion trench is connected with the diversion ridge 41, the side edge of the diversion trench is connected with the edge of the collection trench 43, the collection trench 43 is a square trench, is located under the diversion trench 42, and has a width smaller than the width of the diversion trench 42, that is, is kept a fixed distance between the collection trench 43 and the diversion ridge 41, so that the sewage passes through, and the sewage pipe 5 is connected to the bottom opening of.

Referring to fig. 3, four guide plates 45 are fixedly arranged on the inner side wall of the collecting tank 43 opposite to the water diversion ridge 41 , the guide plates 45 are perpendicular to the inner side wall of the collecting tank 43, and the bottom of each guide plate 45 inclines towards the sewage pipe 5. when sewage flows into the collecting tank 43 from the guide grooves 42, the sewage impacts the guide plates 45, the flow direction of the sewage which originally flows downwards along the depth direction of the collecting tank 43 changes, the sewage flows towards the sewage pipe 5 more quickly, and the pressure of the collecting tank 43 is reduced.

Referring to fig. 2 and 3, baffles 44 are fixedly arranged on the inner side wall of the collecting groove 43 facing the diversion ridge 41 , and the baffles 44 are arranged along the axial direction of the collecting groove 43 and incline downwards away from the diversion ridge 41 side to prevent sewage flowing into the collecting groove 43 from rushing out from the collecting groove 43 towards the diversion ridge 41 side.

The implementation principle of the above embodiment is as follows:

the water pump 3 conveys the clean water into the clean water pipe 2, then the clean water is sprayed out from the nozzle 1 to wash the gauze, the sewage wrapped with the blockage is collected by the collecting box 4, when the nozzle 1 moves below the gauze, the th motor 63 drives the th screw rod 61 to rotate, the collecting box 4 moves from the frame 6 side to the other side, then the th motor 63 stops rotating, the second motor 68 is started, the second screw rod 67 is driven to rotate, the th mounting seat 64, the th screw rod 61, the collecting box 4 and the like integrally move downwards for a fixed height, then the second motor 68 stops rotating, the th motor 63 is started again, and the processes are repeated until the whole gauze is cleaned up.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. filter screen cleaning device for paper pulp dewatering equipment, including nozzle (1) and water purification pipe (2) that are located the gauze below, water purification pipe (2) is connected with water pump (3) dorsad nozzle (1) end, its characterized in that is still including setting up collection box (4) above the gauze, collection box (4) are on a parallel with the gauze setting, and the lower surface of collecting box (4) is equipped with distributive ridge (41), distributive ridge (41) set up along the length direction of collecting box (4), distributive ridge (41) both sides are equipped with guiding gutter (42), guiding gutter (42) are on a parallel with ridge (41) setting, and the transversal arch of personally submitting of guiding gutter (42), guiding gutter (42) are equipped with collecting vat (43) dorsad distributive ridge (41) side, collecting vat (43) are located guiding gutter (42) below, and the width of collecting vat (43) is less than the width of guiding gutter (42), and collecting vat (43) bottom department has connect sewage pipe (5).
2. 2. Screen washing device for a pulp dewatering apparatus according to claim 1, characterized in that a baffle (44) is provided on the inner side wall of the collecting tank (43) on the side facing the water dividing ridge (41) , the baffle (44) being arranged parallel to the axis of the collecting tank (43).
3. 3. Screen washing unit for a pulp dewatering apparatus according to claim 2, characterized in that the apron (44) is inclined downwardly away from the side of the water dividing ridge (41).
4. 4. Filter screen washing device for a pulp dewatering apparatus according to claim 1, wherein a deflector (45) is provided on the inner side wall of the collecting tank (43) facing away from the side of the dividing ridge (41) , the deflector (45) is perpendicular to the inner side wall of the collecting tank (43), and the bottom of the deflector (45) is inclined toward the sewer pipe (5).
5. 5. The screen washing device for the pulp dewatering equipment as recited in claim 1, further comprising a screw (61) and a 0 guide rod (62) arranged on the frame (6), the 1 st screw (61) is arranged parallel to the top edge of the frame (6), the 2 nd screw (61) is rotatably connected with the frame (6), the th screw (61) is arranged on the collecting box (4) in a penetrating manner, the th screw (61) is in threaded engagement with the collecting box (4), the th screw (61) is terminated by a th motor (63), the th guide rod (62) is connected with the frame (6), the th guide rod (62) is arranged on the collecting box (4) in a penetrating manner, and the th guide rod (62) is in sliding engagement with the collecting box (4).
6. 6. A screen washing device for pulp dewatering equipment, according to claim 5, characterized in that the frame (6) is provided with mounting seats (64) in pairs, two 0 mounting seats (64) are respectively located on both sides of the frame (6), the 1 mounting seat (64) is provided with 2 drainage slots (65), the end of the sewage pipe (5) opposite to the collecting box (4) is located in drainage slots (65), both ends of the screw rod (61) are rotatably erected on the two mounting seats (64) and rotatably connected with the frame (6) through the two mounting seats (64), both ends of the guide rod (62) are fixedly connected with the two mounting seats (64) and connected with the frame (6) through the two mounting seats (64).
7. 7. Screen washing device for pulp dewatering equipment, according to claim 6, characterized in that the frame (6) has two paired second mounting seats (66) on both sides, the second mounting seats (66) have a second screw (67) rotatably mounted thereon, the second screw (67) is parallel to the side of the frame (6), the second screw (67) is inserted into the corresponding mounting seat (64), the second screw (67) is screw-engaged with the mounting seat (64), and the second motor (68) is connected to the end of the second screw (67).
8. 8. Screen washing device for a pulp dewatering apparatus according to claim 7, characterized in that the second mounting base (66) is provided with a second drainage groove (69), and the end of the drainage groove (65) is located right above the second drainage groove (69).

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