CN210176477U - Grid trash-blocking treatment system - Google Patents

Abstract

The utility model relates to a sewage treatment field, concretely relates to grid trash rack processing system. The utility model comprises a grid sewage-removing machine and a sewage-blocking gate, wherein an oxalic acid washing component is added in the grid sewage-removing machine to remove scale calcification layers, and an inner washing component is added to remove hair fiber layers; the installation sequence of all the flushing assemblies is optimized, the flushing angles of all the flushing assemblies are optimized, the flushing assemblies are matched with each other, the front-end flushing provides an additive effect on the rear-end flushing, and the deep cleaning of the grid screen plate is realized; the inner washing spray heads are arranged in opposite left and right washing directions and are staggered up and down, so that multi-angle covering type cleaning of the grid screen plate is realized; the slag blocking plate is arranged to avoid the influence of slag falling on the inner flushing assembly and improve the operation stability of the inner flushing assembly; the gate plate of the trash-blocking gate is controlled to rotate in the gate frame, so that the overrunning function of the grating channel is realized; a grating device capable of increasing the water passing amount is additionally arranged between the trash blocking gate and the grating trash remover, so that the water passing treatment capacity of the grating trash remover is improved.

Description

Grid trash-blocking treatment system

Technical Field

The utility model relates to a sewage treatment field, concretely relates to grid trash rack processing system.

Background

The grid plate type internal inflow grid is novel efficient grid decontamination equipment integrating trash blocking and decontamination, and is compact in structure, small in size, high in slag intercepting efficiency and reliable in operation. More and more sewage treatment plants apply an internal inflow grate to the pretreatment stage. The grid mesh plate has the problems of difficult cleaning and short service life caused by blockage due to long-term use in practical use, which are particularly shown in the following aspects: the slag on the screen plate is not washed cleanly, so that the flow is reduced due to the blockage of the water passing hole; fibrous slag is wound on the screen plate and cannot be removed by normal washing, so that blockage is caused; the components in the sewage make the screen plate easily scale, so that the screen plate is blocked.

The mode that mainly adopts the frame outside setting up outer washing unit to washing of grid otter board among the prior art, however in the in-service use, wash outward and only can wash away the sediment in the grid otter board hole to because mounted position and washing angle set up unreasonablely, make the otter board wash for a long time unclean, not only to surperficial sediment, more can't detach the incrustation scale calcification layer that the inboard hair fibre layer of grid otter board and the inside and outside long-term formation of otter board. Therefore, the development of a grid trash-blocking treatment system capable of preventing blockage and self-cleaning is urgently needed to realize deep cleaning of grid screens.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at: to the problem that above-mentioned exists, provide a grid and block dirty processing system, under the prerequisite that has outer washing assembly, increase oxalic acid and wash subassembly and interior washing assembly, through the characteristic of adjusting each subassembly and the relative mounted position between the subassembly, realize the cooperation between each subassembly, improve the cleaning performance, effectively prevent the jam of grid otter board, increase life cycle.

The technical scheme of the utility model is like this:

a grating trash holding treatment system comprises a grating trash remover and a trash holding gate; the grid sewage removing machine is characterized in that the grid sewage removing machine is arranged on a grid channel, and the sewage blocking gate is arranged at the lower part of the grid sewage removing machine and positioned in the grid channel and is connected with the grid sewage removing machine through a straight guide plate; the grid sewage-removing machine comprises a driving device, a frame, a traction chain arranged along the circumferential direction in the frame, a grid screen plate with lifting steps, a slag collecting groove and an electric control cabinet, wherein the grid screen plate is arranged on the traction chain and is provided with the lifting steps; install oxalic acid washing component, outer washing component, interior washing component and high-pressure water source in the grid sewage removing machine, oxalic acid washing component includes that oxalic acid washes and is responsible for, oxalic acid washing nozzle, washes dosing tank and dosing pump of being responsible for and being connected with oxalic acid, outer washing component includes that outer washing is responsible for and installs outer washing nozzle, and the interior washing nozzle who says that interior washing component includes interior washing and is responsible for and install in the packet, high-pressure water source includes high-pressure water pipe and centrifugal pump, high-pressure water pipe is responsible for with outer washing respectively and interior washing and is connected.

Further, the grid trash rack processing system still includes PLC control system, high pressure water pipe divide into two branches and washes the person in charge respectively with outer and wash and be connected with the person in charge with interior, installs the solenoid valve on each branch road, solenoid valve and oxalic acid wash subassembly add the medicine pump and be connected with PLC control system. The PLC sets a control program, and can control the opening and closing time of the electromagnetic valve and the dosing pump, so that the three components are matched with each other.

Furthermore, along the movement direction of the traction chain, all the components are sequentially arranged according to the sequence of the oxalic acid washing component, the outer washing component and the inner washing component. Preferably, the oxalic acid flushing component is arranged below the slag collecting groove on the inner side of the traction chain, the outer flushing component is arranged in the center of the top of the grating sewage removing machine on the outer side of the traction chain, and the inner flushing component is arranged on the inner side of the traction chain and close to the position of the outer flushing component

The installation order of each subassembly has important influence to washing the effect, wash subassembly priority setting with the oxalic acid, and optimize the setting in collection cinder notch below, make the sediment thing that washes the top and drop can not fall to the oxalic acid and wash the jam that causes the oxalic acid to wash the nozzle in the subassembly, the oxalic acid washes the nozzle and spouts the hole and the surface of otter board with the oxalic acid, the oxalic acid is at the inside pore canal deposit of grid otter board or is mixed with the calcification dirt of otter board inboard surface along the flow of otter board surface, make oxalic acid make full use of, can strengthen the reaction effect of oxalic acid, can not cause the waste. The outer washing component is arranged in the center of the top of the grid sewage disposal machine, after the screen plate reaches the top, the washing water at the top is flushed into the inner side of the screen plate along the screen plate hole from the outer side of the screen plate, the slag on the inner side of the screen plate is downwards flushed, the slag is easier to separate from the screen plate under the action of gravity, and the adhesion of the calcified dirt layer on the screen plate and the residue after dissolution of oxalic acid reaction is reduced, so that the screen plate is easy to drop under the action of the impulsive force and the gravity. Meanwhile, the water for external washing can play a certain washing role on the hair fibers on the inner side of the grid mesh plate, so that the adhesive force of the hair fiber layer is reduced, and the subsequent internal washing effect is improved. The inner washing can clean the calcified dirt layer, the hair fiber layer and the residue in the depth of the bore diameter which is not washed out in the outer washing. Each flushing action can provide addition to the effect of the next flushing action, and the flushing actions are progressive layer by layer and mutually matched, so that deep cleaning of the grid screen plate is realized.

Furthermore, the mounting direction of the oxalic acid flushing nozzle is a grid screen plate surface vertical to the vertical direction during operation; the installation direction of the external washing nozzle is vertical to the top surface of the grid sewage disposal machine; the inner flushing nozzle sprays water columns to form an acute angle with the inner side of the grating screen plate. The oxalic acid washing nozzle and the outer washing nozzle are arranged perpendicular to the plate surface of the grid screen plate, so that the spraying effect is enhanced. The water column sprayed by the inner side washing nozzle forms an included angle theta with the inner side surface of the screen plate, and the included angle theta is obtained according to a formula F1 which is Fcos theta (F is water impact force, and F1 is tangential force of the water impact force decomposed to the surface of the screen plate), so that the hair fiber layer attached to the inner side of the screen plate is easier to be removed when the angle theta is smaller in a certain range, and the angle theta is optimized to be 30 degrees. When the angle theta is too small, the vertical impact force of the water impact force decomposed to the surface of the grid mesh plate is insufficient, and the hair fiber layer close to the pore part is not easy to remove.

Furthermore, the inner washing spray heads are composed of 90-degree elbows and nozzles installed on the elbows, the inner washing spray heads are arranged in a staggered mode, the installation heights of the adjacent inner washing spray heads are different, the washing directions are opposite, and the installation heights of the inner washing spray heads in the same washing directions are the same. Alternatively, the elbow is a rotatable elbow. The left and right washing directions of the inner washing spray head are opposite and the upper and lower parts of the inner washing spray head are staggered, so that multi-angle covering washing of the grid screen plate can be realized, dead zones formed by long-time washing in the same direction are avoided, mutual interference among different methods and water flows is avoided, and the inner washing effect is enhanced.

Further, the subassembly that washes in the grid still includes U type arc slag trap, wash including U type arc slag trap and be responsible for the upper end, the segmental arc of U type arc slag trap is responsible for the laminating with interior washing, and vertical section both sides length is unequal, and the longer one side of vertical section is located directly over the nozzle. The slag trap is used for preventing the slag falling from the inner side of the screen plate from being hung on the 90-degree elbow and the nozzle, and the influence on the internal flushing effect is avoided.

Furthermore, the trash rack gate comprises separating gates arranged on two sides of the grid channel, one end of each separating gate is arranged on the side wall of the grid channel, and the other end of each separating gate is connected with straight guide plates arranged at the lower end of the grid dirt separator at intervals in parallel; the branch gates are installed in a splayed shape, and form a Y-shaped channel with the straight guide plate for passing through sewage which needs to enter the grating; the arbitrary branch gate consists of a gate frame and a gate plate arranged in the gate frame, and the gate plate is arranged in the gate frame through a pivot and can rotate in the gate frame; an opening component is arranged on the gate frame to control the gate plate to be opened in a rotating mode.

Alternatively, the opening part may be a gate latch block disposed at a side end of each sub-gate adjacent to a gate frame of the grill cleaner, the gate latch block blocking a backside surface of the gate panel through a gate latch hole on the gate frame to prevent counterclockwise rotation of the left gate and clockwise rotation of the right gate.

Alternatively, the opening component can be a motor reducer, a pivot at the upper end of the gate plate is directly connected with the motor reducer, the motor reducer is connected with a PLC control system, and the opening of the gate plate are controlled by the motor reducer. The flow of sewage can be adjusted by controlling the opening degree, the water level of the channel of the grid is controlled, and the normal operation of other grids connected with the grid in parallel is ensured.

The trash-blocking gate plays a role in guiding when the grid channel is normally used, and can prevent sewage from directly entering the filter before filtering. When the grid channel is an overtaking channel, the overtaking function of the overtaking channel is needed to be utilized under special conditions. For example, the following situations: when the grid equipment is out of service or maintained for replacement of spare parts, or the sewage amount exceeds the treatment capacity of the grid equipment, and the supporting equipment squeezer of the grid is stopped. In view of the above situation, the inner flow grid of the prior art can affect the normal use of the inner flow grid due to the failure of the channel to perform the function of exceeding the channel. This scheme of adoption can realize the gate board and rotate for the gate frame for sewage is direct to be filtered the back by filtering the enterprising income, improves this trash disposal system adaptability.

Furthermore, a grating device capable of increasing the water passing amount is arranged between the trash-blocking gate and the straight guide plate, and the grating device comprises a set of screen plate frames, a water passing screen plate and a brush cleaning system, wherein the set of screen plate frames are arranged on the straight guide plate connected with a water inlet of the grille decontamination machine; the brush cleaning system comprises a brush movement mechanism and a driving mechanism; the brush moving mechanism comprises a reciprocating guide rod frame fixed on the screen plate frame, a plurality of brushes are installed between vertical long edges of the reciprocating guide rod frame, the driving mechanism is a speed reducer, the reciprocating guide rod frame provided with the brushes and driven by the speed reducer makes reciprocating motion on the screen plate frame, and the water passing screen plate is cleaned. The flow capacity of the grid sewage disposal unit is designed according to the flow rate of the grid channels and cannot be modified once the grid sewage disposal unit is fixed. However, in actual use, there may be a case where the flow rate changes, for example, the throughput increases, and at this time, the grid sewage treatment apparatus cannot meet the increase in throughput, and if the amount of excess water needs to be increased, the grid sewage treatment apparatus needs to be replaced with a grid sewage treatment apparatus having a larger throughput. This can result in increased cost of retrofitting equipment and lost production from downtime for retrofitting. Therefore, the arrangement of the grating device capable of increasing the water passing amount can further improve the adaptability of the trash rack treatment system.

Furthermore, the water passing screen plates are detachable on the screen plate frame, water sealing plates with the same size are additionally added for replacement after detachment, and the flow design of the water passing amount can be adjusted by controlling the installation number of the water passing screen plates. The flow of the water passing amount can be controlled by various modes, the size of the screen frame, the aperture of the water passing screen and the number of the water passing screens realize the flexible control of the water passing amount, and the application range of the grid-removing and pollution-removing system is enlarged. The specific detachable fixing mode is as follows: the double-screw bolts are welded on the two vertical side surfaces of the screen frame, the side surface of the water passing screen plate is provided with a waist-shaped hole, the water passing screen plate can be directly embedded into the screen frame from the front surface of the screen frame, and then the water passing screen plate is connected with the screen frame through nuts. The corresponding positions of the upper end surface and the lower end surface of the water passing net plate are provided with screw holes, and the upper water passing net plate and the lower water passing net plate can be detachably connected by utilizing bolts.

Further, the grid mesh plate of the grid sewage disposal machine is a fine grid, an ultrafine grid or a membrane grid. By adjusting the aperture size of the grid mesh plate, the trash holding system can be applied to sewage treatment with different properties.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. an oxalic acid washing component is added to remove a scale calcification layer formed on the grid screen plate after long-time use, and an inner washing component is added to remove a hair fiber layer on the inner side of the grid screen plate;

2. the oxalic acid flushing components, the outer flushing components and the inner flushing components are sequentially arranged along the movement direction of the grating, each flushing component is mutually matched, and the front flushing provides an addition effect on the rear flushing, so that the deep cleaning of the grating screen plate is realized;

3. the arrangement of the inner washing component is optimized, the inner washing spray heads are arranged in opposite left and right washing directions and are staggered up and down, multi-angle covering type washing of the grid screen plate is achieved, and the washing is more comprehensive; the slag blocking plate is arranged to avoid the influence of slag falling on the inner flushing assembly, so that the operation stability of the inner flushing assembly is improved;

4. the angle of each flushing component is optimized, the impact force and the spraying effect of water flow are fully utilized, and the flushing efficiency is improved;

5. the gate plate of the trash-blocking gate is controlled to rotate in the gate frame, so that the overrunning function of the grating channel is realized; the PLC control system and the motor reducer are arranged to drive the gate plate to rotate, so that the automation of the function of the device is realized;

6. a grating device capable of increasing the water passing amount is arranged between the grating dirt separator and the dirt blocking gate, so that the water passing treatment capacity of the grating dirt separator is improved on the premise of not increasing the main body of the grating dirt separator; a brush cleaning system is arranged, and the water passing screen plate is self-cleaned by the acting force of the brush and water flow on the premise of not additionally increasing a flushing system; the device can realize flexible control of the water passing amount and enlarge the application range of the grating decontamination system by the size of the screen frame, the aperture of the water passing screen and the number of the water passing screens; the system has simple structure and low modification cost, and is worthy of popularization;

7. the operation stability and the adaptability of the whole grating trash holding treatment system are improved, and trash holding treatment under various working conditions is met.

Drawings

FIG. 1 is a schematic front view of example 1

FIG. 2 is a schematic side view of embodiment 1;

FIG. 3 is a schematic view of the nozzle spray angle of the inner wash assembly

FIG. 4 is a schematic top view of embodiment 1;

FIG. 5 is a schematic front view of a grille shutter;

FIG. 6 is a schematic side view of a grille shutter;

FIG. 7 is a schematic view of the trash holding gate with the grated channel overrunning;

FIG. 8 is a schematic layout view of embodiment 3;

FIG. 9 is a front view of the inside of the grille arrangement with increased water throughput;

FIG. 10 is a sectional view taken along the line A-A of FIG. 9;

FIG. 11 is a general view of FIG. 9 taken in the direction B-B;

FIG. 12 is an isometric view of a grille arrangement that increases the amount of water that is passed through.

The labels in the figure are: 1 is a frame, 2 is a traction chain, 3 is a grating screen plate, 4 is a slag collecting groove, 5 is an oxalic acid washing main pipe, 6 is an oxalic acid washing nozzle, 7 is a dosing tank, 8 is a dosing pump, 9 is an outer washing main pipe, 10 is an outer washing nozzle, 11 is an inner washing main pipe, 12 is an inner washing nozzle, 13 is a high-pressure water pipe, 14 is a centrifugal pump, 15 is an electromagnetic valve, 16 is a filtering device, 17 is a U-shaped arc slag baffle, 18 is a branch gate 18-1 is a gate frame, 18-2 is a gate plate, 19 is a straight guide plate, 20 is a fixed cross bar, 21 is a gate rotating handle, 22 is a gate latch block, 23 is a lifting bar connecting pin, 24 is a latch block lifting bar, 25 is a handle, 26 is a grating device capable of increasing water passing amount, 27 is a screen plate frame, 28 is a bottom water sealing plate, 29 is a top water sealing plate, 30 is a screen plate, 31 is a hairbrush reciprocating waist-shaped groove, and 32 is a reciprocating guide bar frame, 33 is a connecting shaft, 34 is a brush fixed block, 35 is a brush, 36 is a speed reducer base frame, 37 is a reciprocating turntable waist-shaped groove, 38 is a speed reducer, 39 is a reciprocating turntable, 40 is a reciprocating turntable universal driving shaft, and 41 is a groove.

Detailed Description

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

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in fig. 1-2, a grating trash holding treatment system comprises a grating trash remover and a trash holding gate; the grid sewage removing machine is characterized in that the grid sewage removing machine frame is arranged on a grid channel, and the sewage blocking gate is arranged at the lower part of the grid sewage removing machine and is positioned in the grid channel; the grid sewage-removing machine comprises a driving device, a frame 1, a traction chain 2 arranged along the circumferential direction in the frame 1, a grid screen plate 3 with lifting steps, a slag collecting groove 4 and an electric control cabinet, wherein the grid screen plate is arranged on the traction chain 2; an oxalic acid flushing component, an outer flushing component, an inner flushing component and a high-pressure water source are arranged in the grating dirt removing machine, the oxalic acid flushing component comprises an oxalic acid flushing main pipe 5, an oxalic acid flushing nozzle 6, a dosing tank 7 and a dosing pump 8 which are connected with the oxalic acid flushing main pipe 5, the outer flushing component comprises an outer flushing main pipe 9 and an outer flushing nozzle 10 arranged on the outer flushing main pipe, the inner flushing component comprises an inner flushing main pipe 11 and an inner flushing spray head 12 arranged on the inner flushing main pipe, the high-pressure water source comprises a high-pressure water pipe 13 and a centrifugal pump 14, the high-pressure water pipe 13 is divided into two branches which are respectively connected with the outer washing main pipe 9 and the inner washing main pipe 11, each branch is provided with an electromagnetic valve 15, the trash rack treatment system further comprises a filtering device 16, the filtering device 16 is installed on a pipeline of the high-pressure water pipe 13, and manual valves are arranged at two ends of the filtering device 16 and the centrifugal pump 14 and used for maintenance. The filter device 16 may alternatively be a laminated filter. The high pressure water pipe 14 may further have a pressure gauge for monitoring water pressure. The electromagnetic valve 15 and the dosing pump 8 of the oxalic acid washing component are respectively connected with the PLC control system. The PLC sets a control program, and the opening and closing time of the electromagnetic valve 15 and the dosing pump 8 can be controlled, so that the three components are matched with each other.

As shown in fig. 2, along the moving direction of the drag chain 2, the components are sequentially arranged according to the sequence of the oxalic acid flushing component, the outer flushing component and the inner flushing component. Specifically, the direction of motion of drag chain 2 is clockwise motion, the oxalic acid washes the subassembly and sets up in the 4 below of the inboard collection sediment groove of drag chain 2, wash the subassembly outward and set up at the grid de-dirt machine top central authorities in the 2 outsides of drag chain, interior washing assembly sets up the rear end position setting of washing the subassembly outside being close to of drag chain 2 inboards. The mounting direction of the oxalic acid flushing nozzle 6 is perpendicular to the surface of the grid screen plate 3 in the vertical direction during operation; the installation direction of the outer washing nozzle 10 is perpendicular to the top surface of the grid sewage disposal machine.

As shown in fig. 3, the water jet from the inner washing nozzle 12 is at 30 ° to the inner side of the grille screen 3. According to the formula F1, which is Fcos θ (F is water impact force, F1 is water impact force decomposed to tangential force of the surface of the screen plate), the smaller the θ angle is, the easier the hair fiber layer attached to the inner side of the screen plate is to be removed.

As shown in fig. 1, the inner washing nozzle 12 is mounted on the inner washing main pipe 11 by a screw thread. The inner washing spray head 12 consists of a 90-degree rotatable elbow and a nozzle mounted on the elbow. The elbow is arranged below the inner washing main pipe 11, and the front end of the elbow is provided with a nozzle. The flushing angle between the inner flushing nozzle 12 and the grid mesh plate 3 can be adjusted by a rotatable elbow of 90 degrees. The inner washing spray heads 12 are arranged in a staggered mode, the installation heights of the adjacent inner washing spray heads 12 are different, the washing directions are opposite, and the installation heights of the inner washing spray heads 12 with the same washing directions are the same. The grid inner flushing assembly further comprises a U-shaped arc-shaped slag trap 17, and optionally, the U-shaped arc-shaped slag trap 17 can be a stainless steel plate, and the upper end of the main flushing pipe 11 is installed inside the U-shaped arc-shaped slag trap 17. The arc-shaped section of the U-shaped arc-shaped slag trap 17 is fixedly attached to the inner flushing main pipe 11 in a welding mode, the two sides of the vertical section are unequal in length, and the longer side of the vertical section is located right above the nozzle.

Further, as shown in fig. 1 and 4, the trash holding gate comprises branch gates 18 symmetrically installed on both sides of the transcendental canal, each branch gate 18 is composed of a gate frame 18-1 and gate plates 18-2 installed in the gate frame 18-1, the side columns of the gate frame 18-1 are fixed on the wall of the transcendental canal through angle irons and expansion screws, and the side columns at the other end of the gate frame 18-1 are respectively connected with straight guide plates 19 installed at the lower end of the grid sewage remover 2 and arranged in parallel at intervals; the shutter plate 18-2 is pivotally mounted in the shutter frame 18-1 to be rotatable in the shutter frame 18-1. The branch gate 18 is in a shape of Chinese character 'ba' after being installed, the grating gate divides the transcendental canal into two parts, the branch gate 18 and the straight guide plate 19 form a Y-shaped channel for passing sewage which needs to enter the grating, and a channel for passing sewage when the transcendental function is implemented is arranged between the side column of the gate frame 18-1 connected with the straight guide plate 19 and the canal walls at the two sides. A fixed cross bar 20 is arranged between the gate frames 18-1 of the branch gates 18.

Further, as shown in fig. 5 and 6, the upper and lower ends of the shutter plate 18-2 are fixedly connected with pivots, respectively, which are installed at positions deviated from the center point of the shutter frame 18-1 by making holes on the shutter frame 18-1 so that the pivots pass through the shutter frame 18-1, and a shutter knob 21 is provided above the pivot at the upper end of the shutter plate 18-2. The side ends, connected with the straight guide plate 19, of the gate frame 18-1 on the left side and the right side are provided with gate latch blocks 22, the gate latch blocks 22 are semicircular, a latch block fixing pin is arranged on a circle center of a semicircular plane and protrudes upwards to be fixed on the gate frame 18-1, and the gate latch blocks 22 block the back water surface of the gate plate 18-2 through latch holes in the gate frame 18-1 to prevent the left gate from rotating anticlockwise and the right gate from rotating clockwise. The gate latch block 22 is connected to a latch block lever 24 by a lever connecting pin 23. Alternatively, a handle 25 may be fixedly mounted on the latch block handle 24, or a temporary handle 25 may be provided by punching a hole in the handle, and the latch block 22 is rotated by controlling the movement of the latch block handle 24 until the latch block 22 does not block the shutter plate 18-2, and the pivot is controlled to rotate the shutter plate 18-2. When the grid ditch is normally used, the control gate latch block 22 blocks the gate plate 18-2 so that sewage does not pass through the gate. Furthermore, the gate plate 18-2 is provided with a reinforcing rib to enhance the strength of the gate plate 18-2.

The utility model discloses an implementation as follows: when the trash rack system works normally, the gate plate 18-2 is in a closed state, sewage enters the grid sewage remover from a water channel between the left gate and the right gate for trash removal treatment, a water inlet hole is formed in the water-facing end of the lower portion of the rack 1 of the grid sewage remover, and the opposite side of the water inlet hole is a closed end. Sewage flows into the machine from the water channel, flows out through the grating net plates 3 at the two sides, and is converged into a channel at the back of the machine through the water outlet channels at the two sides. The driving device of the grid sewage removing machine is arranged on a forward output shaft of the frame 1, the grid screen plates 3 on the two sides rotate in the grid sewage removing machine in the circumferential direction under the driving of the traction chain 2, the sewage intercepted in the length range is extracted upwards from bottom to top, the sewage unloading work is automatically completed under the action of flushing water of the flushing system, and the slag water is discharged into a slag collecting groove 4 between the grid screen plates 3 on the two sides and then is discharged out of the machine in a self-flowing mode. When the grating starts to operate, the outer flushing component operates and continues at the same time, and the inner flushing component operates intermittently in a fixed time or under the control of a PLC (programmable logic controller) control system according to the pressure difference of water flows inside and outside the grating screen plate; the oxalic acid washing component is controlled by the PLC control system to be opened at intervals according to empirical time data of calcified fouling layer formation. The specific process when the three run simultaneously is as follows: when the grid mesh plate 3 runs for a set time, the oxalic acid flushing component is opened. Grid otter board 3 follows 2 circumference operations of drag chain of grid de-dirt machine, at first washes the subassembly through the oxalic acid, and PLC control system control adds medicine pump 6 and opens, and the oxalic acid is washed the nozzle 6 by the oxalic acid and is spouted into on grid otter board 3, and the dirt is got rid of in oxalic acid and calcification dirt contact postreaction. The PLC control system can control the speed of the traction chain 2 to control the contact residence time of the oxalic acid and the calcified dirt layer. At the same time, the centrifugal pump 14 of the external flushing component is opened, and when the grid mesh plate 3 runs to the top center, the PLC control system controls the electromagnetic valve 15 of the external flushing component to flush the grid mesh plate 3. Wherein, the outer washing nozzle 10 vertically impacts the front surface of the grid mesh plate 3 for washing the traditional slag and the residual calcified fouling layer after reaction. Then, the grid mesh plate 3 passes through the inner washing component, the inner washing spray head 12 sprays water columns, water flow impacts the inner side of the grid mesh plate 3 at a certain angle, the impact force of the water flow can be decomposed into tangential force on the surface of the grid mesh plate and forward impact force of the mesh plate, the forward impact force is used for scattering the hair fiber layer, and the tangential force on the surface is used for washing the hair fiber layer and dropping the hair fiber layer.

When the channel needs to be transcended, the lifting rod 24 of the door latch block is controlled to move, so that the door latch block 22 is rotated; when the shutter latch block 22 is rotated to not block the shutter plate 18-2, the shutter lever 21 is controlled by a manual operation to rotate the shutter plate 18-2, so that the shutter plate 1-2 is as shown in FIG. 7. At the moment, sewage enters the grating through the gate and is filtered, and therefore the overrunning function of the channel is achieved.

Example 2

On the basis of embodiment 1, in a preferred embodiment, the gate frame 18-1 is not provided with the gate rotating handle 21, the gate latch block 22, the latch block lifting rod 24 and the handle 25. The pivot at the upper end of the gate plate 18-2 is connected with a motor reducer, and the motor reducer is connected with a PLC control system. The PLC control system can control the motor reducer, and the motor reducer realizes the rotation opening and the opening control of the gate plate 18-2.

Example 3

On the basis of the embodiment 1, as shown in fig. 8-12, the utility model also comprises a grating device 26 capable of increasing the water passing amount, which is arranged between the trash baffle gate and the straight guide plate 19. The grating device comprises a set of screen plate frames 27 and a brush cleaning system which are arranged on two sides of the grating channel respectively; the brush cleaning system comprises a brush movement mechanism and a driving mechanism; the screen frame 27 is a rectangular frame, a bottom water sealing plate 28, a top water sealing plate 29 and a water passing screen 30 are arranged in the screen frame 27, the bottom water sealing plate 28 and the top water sealing plate 29 are respectively welded at the bottom and the top of the frame, and a plurality of water passing screens 30 are filled between the bottom water sealing plate 28 and the top water sealing plate 29 and are welded with the screen frame 27 into a whole. Two long edges of the screen plate frame 27 are provided with brush reciprocating waist grooves 31, the brush moving mechanism comprises a reciprocating guide rod frame 32, and the reciprocating guide rod frame 32 is formed by connecting two vertical rods and a cross rod and is in a door shape; be fixed with connecting axle 33 between the montant, the mounted position of connecting axle 33 matches with brush reciprocating motion waist groove 31, brush fixed block 34 is installed on connecting axle 33, and brush 35 is installed on brush fixed block 34. The speed reducer base frame 36 is installed between the two screen frames 27 to connect the two screen frames 27 together; a reducer mounting seat is arranged on one side of the reducer base seat frame 36, and a reciprocating turntable base is arranged on the other side; a reciprocating turntable waist-shaped groove 37 is arranged in the cross bar; the speed reducer 38 is arranged on a speed reducer base frame 36, the speed reducer 38 and the reciprocating turntable base are respectively provided with a reciprocating turntable 39 by utilizing a reciprocating turntable pin shaft, the edge of the reciprocating turntable 39 close to the edge is provided with a linkage hole, and a reciprocating turntable linkage shaft 40 penetrates through a reciprocating turntable waist-shaped groove 37 on the reciprocating guide rod frame 32 and the linkage hole on the reciprocating turntable 39 to connect the left reciprocating turntable 39 and the right reciprocating turntable 39 together. Further, the screen frame 27 is formed by welding square pipes, the reciprocating guide rod frame 32 is formed by welding square pipes, the pipe diameter of the reciprocating guide rod frame 32 is smaller than that of the screen frame 27, two vertical rods of the reciprocating guide rod frame 32 can be sleeved into the screen frame 27, the brush reciprocating waist-shaped grooves 31 are uniform in discontinuity and symmetrically arranged on two long sides of the screen frame 27, the brush reciprocating waist-shaped grooves 31 symmetrically arranged on the two long sides of the screen frame 27 are a group, and each group corresponds to a brush; the diameter of the rotating surface of the linkage hole on the reciprocating turntable 39 is equal to the length of the single brush reciprocating waist-shaped groove 31; the length of the reciprocating turntable waist-shaped groove 31 is equal to the circumference of the reciprocating turntable 39. Furthermore, the spliced position of the water passing screen plate 30 on any screen plate frame 27 corresponds to the discontinuous position of the brush reciprocating waist-shaped groove 31, and the spliced position forms a transverse communicated groove 41.

The implementation method comprises the following steps: the sewage is guided into the sewage filter by the sewage blocking gate, part of the sewage is filtered by the grating device 26 capable of increasing the water passing amount and enters the sewage filter before filtering, and part of the sewage directly enters the grating cleaner to carry out the implementation process of the embodiment 1. Meanwhile, the brush cleaning system is started, the speed reducer 38 is controlled to be started, the speed reducer 38 controls the reciprocating turntable 39 to rotate, the reciprocating turntable linkage shaft 40 is driven to move in the reciprocating turntable waist-shaped groove 37, the rotating force of the movement of the turntable is converted into the acting force in the vertical direction, which is applied to the reciprocating guide rod frame 32 by the reciprocating turntable linkage shaft 40, the reciprocating guide rod frame 32 moves back and forth on the screen plate frame 27, and the brush 35 moves up and down to brush the water passing screen plate 30. The removal mode of the slag attached to the water passing mesh plate 30 is as follows: one part of the water is directly taken away by water flow and enters the grid sewage removing machine, the slag which cannot be washed away is brushed away by the brush arranged on the water passing screen plates 30, the slag is just brushed into the grooves 41 between the water passing screen plates 30, then the slag is washed into the grid sewage removing machine by the water flow, and the slag is fished out by the grid sewage removing machine. The water passing amount of the water passing screen plate 30 of the grating device 26 capable of increasing the water passing amount is smaller than that of the grating dirt removing machine, so that the sewage before the grating passes through the grating device 26 capable of increasing the water passing amount has larger water flow speed to be beneficial to flushing away the slag. The flow design for increasing the water passing amount can be adjusted by the size of the screen frame 27 and the aperture size of the water passing screen 30.

In a preferred scheme, the water passing net plate 30 is detachable on the net plate frame 27, and a water sealing plate with the same size is additionally added for replacement after the water passing net plate 30 is detached, so that the installation quantity of the water passing net plate 30 can be controlled to adjust the flow design of the water passing quantity. Specifically, studs are welded on two vertical side surfaces of the screen frame 27, kidney-shaped holes are formed in the side surfaces of the water passing screen 30, the water passing screen 30 can be directly embedded into the screen frame 27 from the front surface of the screen frame 27, and then the water passing screen 30 is connected with the screen frame 27 through nuts. Screw holes are arranged at the corresponding positions of the upper end surface and the lower end surface of the water passing screen plate 30, and the upper water passing screen plate 30 and the lower water passing screen plate 30 can be detachably connected by utilizing bolts.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A grid trash rack processing system which characterized in that: comprises a grating dirt separator and a dirt blocking gate; the grid sewage removing machine is characterized in that the grid sewage removing machine is arranged on a grid channel, and the sewage blocking gate is arranged at the lower part of the grid sewage removing machine and positioned in the grid channel and is connected with the grid sewage removing machine through a straight guide plate; the grid sewage-removing machine comprises a driving device, a frame, a traction chain arranged along the circumferential direction in the frame, a grid screen plate with lifting steps, a slag collecting groove and an electric control cabinet, wherein the grid screen plate is arranged on the traction chain and is provided with the lifting steps; install oxalic acid washing component, outer washing component, interior washing component and high-pressure water source in the grid sewage removing machine, oxalic acid washing component includes that oxalic acid washes and is responsible for, oxalic acid washing nozzle, washes dosing tank and dosing pump of being responsible for and being connected with oxalic acid, outer washing component includes that outer washing is responsible for and installs outer washing nozzle, interior washing component includes interior washing and is responsible for and installs the interior washing terminals who goes up, high-pressure water source includes high-pressure water pipe and centrifugal pump, high-pressure water pipe is responsible for with outer washing respectively and interior washing and is connected.

2. The grid trash rack treatment system of claim 1, wherein: the grid trash-blocking treatment system further comprises a PLC control system, the high-pressure water pipe is divided into two branches which are respectively connected with the outer washing main pipe and the inner washing main pipe, electromagnetic valves are installed on the branches, and the electromagnetic valves are connected with the medicine feeding pump of the oxalic acid washing assembly and the PLC control system.

3. The grid trash rack treatment system of claim 1, wherein: along the movement direction of the traction chain, all the components are sequentially arranged according to the sequence of the oxalic acid flushing component, the outer flushing component and the inner flushing component.

4. The grid trash rack treatment system of claim 3, wherein: the oxalic acid flushing component is arranged below the slag collecting groove on the inner side of the traction chain, the outer flushing component is arranged in the center of the top of the grid sewage disposal machine on the outer side of the traction chain, and the inner flushing component is arranged at the position, close to the outer flushing component, on the inner side of the traction chain.

5. The grid trash rack treatment system of claim 1, wherein: the mounting direction of the oxalic acid flushing nozzle is perpendicular to the vertical direction of the grid screen plate surface during operation; the installation direction of the external washing nozzle is vertical to the top surface of the grid sewage disposal machine; the inner flushing nozzle sprays water columns to form an acute angle with the inner side of the grating screen plate.

6. The grid trash rack treatment system of claim 5, wherein: interior washing nozzle comprises 90 elbows and the nozzle of installing on the elbow, interior washing nozzle sets up in the staggering, and adjacent interior washing nozzle's mounting height is different and wash opposite direction, and the mounting height that washes the interior washing nozzle that the direction is the same, the subassembly that washes in the grid still includes U type arc slag trap, wash the person in charge upper end including U type arc slag trap installation, the arc section of U type arc slag trap is washed with interior and is responsible for the laminating, and vertical section both sides length is unequal, and longer one side of vertical section is located directly over the nozzle.

7. The grid trash rack treatment system of claim 1, wherein: the trash-blocking gate comprises separating gates arranged on two sides of the grid channel, one end of each separating gate is arranged on the side wall of the grid channel, and the other end of each separating gate is connected with straight guide plates arranged at the lower end of the grid sewage-removing machine in parallel at intervals; the branch gates are installed in a splayed shape, and form a Y-shaped channel with the straight guide plate for passing through sewage which needs to enter the grating; the arbitrary branch gate consists of a gate frame and a gate plate arranged in the gate frame, and the gate plate is arranged in the gate frame through a pivot and can rotate in the gate frame; an opening component is arranged on the gate frame to control the gate plate to be opened in a rotating mode.

8. The grid trash rack treatment system of claim 1, wherein: a grating device capable of increasing the water passing amount is arranged between the trash-blocking gate and the straight guide plate, and the grating device comprises a set of screen plate frames, a water passing screen plate and a brush cleaning system, wherein the set of screen plate frames are arranged on the straight guide plate connected with a water inlet of the grille decontamination machine; the brush cleaning system comprises a brush movement mechanism and a driving mechanism; the brush moving mechanism comprises a reciprocating guide rod frame fixed on the screen plate frame, a plurality of brushes are installed between vertical long edges of the reciprocating guide rod frame, the driving mechanism is a speed reducer, the reciprocating guide rod frame provided with the brushes and driven by the speed reducer makes reciprocating motion on the screen plate frame, and the water passing screen plate is cleaned.

9. The grid trash rack treatment system of claim 8, wherein: the water passing screen plate is detachable on the screen plate frame, a water sealing plate with the same size is additionally added for replacement after detachment, and the flow design that the mounting quantity of the water passing screen plate is controlled to adjust the water passing quantity is realized.

10. The grid trash rack treatment system of any one of claims 1-9, wherein: the grid dirt separator can be a fine grid, an ultrafine grid or a membrane grid.

Images