JPS6225458Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a method for washing powdered materials, etc., with water after the transportation means such as a belt conveyor transports the materials. The present invention relates to a washing and removing device for removing deposits.

Powder and other substances adhere to the surface of conveyor belts and other means of conveying powder, but many of these substances are relatively fine particles.
Powder, etc., remains attached to the surface even after transportation and falls when the transportation means returns after transportation is completed.If the transportation means is installed at a high place, the fallen fine powder may be scattered around. This will cause dust generation and worsen the working environment. Therefore, these fine powder deposits must always be removed after transportation has been completed, but methods for removing these deposits can be roughly divided into dry methods and wet methods.
In particular, the wet method of cleaning with washing water is an effective means for removing deposits, and the conventional wet method has been effective in removing fine powder deposits from transportation means. Large processing equipment must be attached to treat the used washing water, which not only costs a lot of money but also requires a large equipment area, making it difficult to install in a narrow space. Furthermore, it is difficult to discharge the removed deposits in a short period of time without using washing water as much as possible.

The present invention solves these drawbacks. In other words, it can be installed in a narrow space, and when the transport means such as a belt conveyor that transports powdered materials is removed, it can be washed away by jetting out cleaning water when the transport means returns. A compact deposit separator separates the deposits from the wash water and deposits them, and the time when the amount of deposits reaches a certain amount is determined from the water level of the separated wash water, which is stored in a separate tank. To provide a deposit washing removal device that drains all of the cleaning water on deposits, discharges the deposits in a short time with almost no cleaning water, and circulates and uses the cleaning water from which deposits have been separated. It is something to do.

More specifically, the present invention includes a spray nozzle and a saucer provided below the return section of a means of transportation, and a cleaning device attached to the lower part of the tray that sprays out from the spray nozzle and removes deposits attached to the means of transportation by washing with water. There is a drain pipe through which the water and deposits removed by washing water flow down from the tray, and the lower end of the drain pipe is inserted vertically toward the center, with a deposit discharge port at the bottom and a side wall. The washing water treatment tank has an overflow port at the top and a drain port approximately in the center of the side wall, and an umbrella-shaped top surface that slopes downward from the top and is wider at the bottom and narrower at the top, with an opening in the center. A plurality of inclined plates are assembled in steps at predetermined intervals and are attached to the upper part of the wash water treatment tank, and the lower end of the drain pipe inserted into the wash water treatment tank is connected to the center. A deposit separator inserted into the cavity, an inclined plate cleaning nozzle that spouts cleaning water toward the inclined plate of the deposit separator, and a cleaning water treatment tank having approximately the same volume as the cleaning water treatment tank and located below it. A circulating water tank that stores the washing water flowing down from the washing water treatment tank, in which pipes are opened from the overflow port of the washing water treatment tank and pipes from the drain port are opened through the drainage electromagnetic valve, and the circulating water tank. a circulation pipe and a pump for extracting cleaning water from the lower part of the spray nozzle and sending it to the spray nozzle through a solenoid valve on the saucer side for circulation use, and for sending water to the inclined plate cleaning nozzle through the solenoid valve on the side of the cleaning water treatment tank; It is characterized by comprising a water level detector installed in the circulating water tank, which detects the water level from the lower limit of the water level to the upper limit of the water level, which is above the drain port of the washing water treatment tank by the volume below, and opens the electromagnetic valve for draining. This invention relates to a washing and removing device for deposits. DESCRIPTION OF THE PREFERRED EMBODIMENTS The attached matter washing and removing device according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing one embodiment of the device of the present invention;
FIG. 2 is a front view showing a part of the inventive device shown in FIG. 1 in cross section, FIG. 3 is a perspective view showing one embodiment of the deposit separation device installed in the inventive device, and FIG. 4 is a vertical cross-sectional view along the center line of FIG. 3;

In the drawing, 1 is a transportation means for transporting powder, etc.
Reference numeral 2 denotes a receiving tray which is provided below the return portion of the transportation means 1 and receives the deposits and washing water that fall when the fine powder deposits adhering to the transportation means 1 are washed away with washing water. One end of a circulation pipe 7, which will be described later, is installed below the return section of the transportation means 1, and a spray nozzle 7b for spraying cleaning water is attached to the tip. The saucer 2 and the spray nozzle 7b may have an integral structure as shown in FIG. 1, or may be separate bodies. Reference numeral 3 denotes a drainage pipe made of mild steel or plastic that is attached to the lower part of the saucer 2 and runs vertically downward; 4 is a washing water treatment tank installed below the saucer 2; its shape For example, as shown in FIG. 1, the upper part is formed into an upright cylindrical shape and the lower part is formed into an inverted conical shape.
The lower end of the drain pipe 3 is inserted vertically toward the direction a. Reference numeral 4b denotes a deposit discharge port 4 which is provided at the bottom of the wash water treatment tank 4 and discharges deposits that flow down together with the wash water and accumulate at the bottom of the wash water treatment tank 4;
4d is an overflow port provided at the upper part of the side wall of the wash water treatment tank 4, through which the wash water flowing into the wash water treatment tank 4 overflows, and 4d is provided at the approximate center of the side wall of the wash water treatment tank 4 This is a drain port through which the wash water in the wash water treatment tank 4 is discharged. Reference numeral 5 designates a plurality of slanted plates 5a whose upper surfaces are inclined from above to below, wide at the bottom and narrow at the top, and which are shaped like an umbrella and open at the center, assembled in a stepped manner at a predetermined interval. A deposit separator 5b is attached to the upper part of the treatment tank 4 and separates cleaning water from deposits, and 5b is a plurality of inclined plates 5a assembled in steps with predetermined intervals.
A plurality of U-shaped fixing devices are used to fix the outer peripheral edges of the slanted plates 5a at predetermined intervals. voids are maintained. Reference numeral 5c denotes a stop that protrudes from the inner wall of the wash water treatment tank 4 and is attached at a predetermined interval to hold the lower outer corner of the fixing device 5b, and the deposit separation device 5 is attached to the inclined plate 5a of the fixing device 5. The opening edge of the central part has a predetermined distance from the drain pipe 3 whose lower end is inserted into the central cavity, and the peripheral edge of the outer part of the inclined plate 5a has a predetermined distance from the inner wall of the washing water treatment tank 4. Wash water treatment tank 4
The lower outer corner of the fastener 5b is attached to the stopper 5.
c and is held by known fixing means or the like. Reference numeral 16 denotes an inclined plate washing nozzle attached to the tip of a portion of the circulation pipe 7, which will be described later, which is piped above the washing water treatment tank 4, and is used to wash the inclined plate 5a from above.
Reference numeral 6 denotes a circulating water tank having the same volume as the washing water processing tank 4 installed below the washing water processing tank 4, and washing is carried out from the overflow port 4c and drain port 4d of the washing water processing tank 4 into this circulating water tank 6. Piping is arranged so that water can flow down, and a drainage electromagnetic valve 11 is provided in the piping from the drain port 4d. Reference numeral 7 denotes a circulation pipe for extracting cleaning water from the lower part of the circulation water tank 6 for reuse, and is a part that is piped from the circulation water tank 6 to above the saucer 2 and supplies water to the spray nozzle 7b for circulation. and a part piped above the wash water treatment tank 4 to send water to the inclined plate washing nozzle 16, each of which is provided with a saucer-side electromagnetic valve 14 and a wash water treatment tank-side electromagnetic valve 15. . 7a is a pump attached to the circulation pipe 7. Reference numeral 9 denotes a water level detector which is installed in the circulating water tank 6 and detects the lower limit of the water level of the washing water in the circulating water tank 6 and the lower limit of the water level which is above the water level by the volume below the drain port 4d of the washing water treatment tank 4. The drainage electromagnetic valve 11 is connected to this water level detector 9.
When the water level detector 9 detects that the water level in the circulating water tank 6 has reached the upper limit, the drainage electromagnetic valve 11 opens to drain the wash water in the wash water treatment tank 4 into the circulating water tank 6. Washing water treatment tank 4
Water is drained above the drain port 4d inside.

The following members are preferably provided to ensure reliable or more effective operation of the device of the present invention. That is, 10 is each operation confirmation lamp for confirming that the water level detector 9 has detected the upper limit of the water level and has activated the electromagnetic valve 11 for draining, and that the water level has reached the lower limit of the water level, and 12 is a cleaning water A lid opening/closing device for opening and closing the lid 13 which is attached to the deposit discharge port 4b at the bottom of the treatment tank 4 in a freely openable and closable manner; 17 is attached to the drain pipe 3 and is used for washing water and deposits flowing down inside the drain pipe 3; This is a buffer plate that cushions the flow of water. In addition, a water supply pipe (not shown) is installed in each of the cleaning water treatment tank 4 and the circulation water tank 6, and 18 is the lower limit position of the cleaning water level in the circulation water tank 6. In order to have approximately the same volume as the tank 4, it is preferable that the lower limit position 18 of the water level be close to the bottom.

A description will be given of an operation in which fine powder deposits adhering to the transportation means 1 are removed by washing water using the deposit washing and removing apparatus according to the present invention having such a structure, and the removed deposits are separated from the washing water.

First, the cleaning water treatment tank 4 is filled with cleaning water up to the overflow port 4c, and the circulating water tank 6 is filled with cleaning water up to the lower water level position 18, and then the saucer-side electromagnetic valve 14 is opened to start cleaning. The electromagnetic valve 15 on the water treatment tank side is closed, the cleaning water in the circulating water tank 6 is sent by the pump 7a, and the transportation means 1 that transports the powder and has fine powder deposits is returned at the return section. When the cleaning water is jetted from the spray nozzle 7b toward the transport means 1 below the vehicle to wash away the deposits, the removed deposits and cleaning water fall onto the tray 2 and pass through the drain pipe 3 to be treated with the cleaning water. It flows down to the center of the tank 4.

A deposit separator 5 is installed in the upper part of the wash water treatment tank 4.
is installed, and this deposit separation device 5 has a plurality of inclined plates 5a assembled in steps at predetermined intervals, so that the deposits and washing water flowing down inside the drain pipe 3 are removed from the drain pipe 3. A process in which the deposits that are discharged from the lower end into the center of the washing water treatment tank 4 and are immediately separated fall as they are, while most of the unseparated deposits pass through the gaps between the respective inclined plates 5a and rise with the water flow. The particles are separated from the wash water, settle on the inclined plate 5a, move downward, and fall downward from its periphery, and are deposited as a deposit layer 8 in the lower part of the wash water treatment tank 4. On the other hand, the cleaning water from which the deposits have been separated overflows from the overflow port 4c, flows down into the circulation tank 6, and is again sent to the spray nozzle 7 by the pump 7a.
It is sent to b and used for circulation. When the deposited deposit layer 8 deposited in the lower part of the cleaning water treatment tank 4 increases, the water level of the cleaning water in the circulating water tank 6 increases by that amount.
Therefore, when the deposited deposit layer 8 increases to the lower edge of the water outlet 4d, the water level in the circulation water tank 6 is increased by the volume below the water level lower limit position 18 of the cleaning water treatment tank 4 from the water level lower limit position 18 at which cleaning starts. The water level has risen to the upper water level, that is, the upper water level limit. Therefore, by detecting this upper limit of the water level with the water level detector 9, it can be known that the height of the deposited deposit layer 8 in the wash water treatment tank 4 has reached the lower edge of the drain port 4d.

When the water level detector 9 detects the upper limit of the water level, the drainage solenoid valve 11 connected to the water level detector 9 opens and the upper wash water flows from the drain port 4d in the wash water treatment tank 4 to the drain port 4d. Since the water flows down through the valve 11 into the circulating water tank 6, the water is drained leaving only the deposited deposit layer 8 in the washing water treatment tank 4. In this case, the operation of the drainage electromagnetic valve 11 is confirmed by the operation confirmation lamp 10. At the start of this water removal, the pump 7a is stopped.

After the water in the cleaning water treatment tank 4 has been sufficiently drained, when the lid opening/closing device 12 is operated to open the lid 13, the deposited deposit layer 8 deposited at the bottom of the cleaning water treatment tank 4 is removed by its own weight. The water is discharged to the outside of the washing water treatment tank 4 in a short time through the kimono discharge port 4b. After discharging the accumulated deposits, the lid opening/closing device 12 is operated to close the lid 13, and the drainage electromagnetic valve 11 is closed.
The saucer-side electromagnetic valve 14 is closed, the washing water treatment tank side electromagnetic valve 15 is opened, and the pump 7a is operated to spray the washing water in the circulating water tank 6 from the inclined plate cleaning nozzle toward the inclined plate 5a, thereby cleaning the inclined plate. Wash water is stored in the wash water treatment tank 4 while washing 5a. When the cleaning water stored in the cleaning water treatment tank 4 is full, the overflow port 4
When water overflows from c and begins to flow into the circulating water tank 6, the pump 7a is stopped, the saucer-side electromagnetic valve 14 is opened, the wash water treatment tank-side electromagnetic valve 15 is closed, and then the pump 7a is restarted. However, before that, the state of the water level of the cleaning water in the circulating water tank 6 is known by the water level detector 9 (by the operation of the operation confirmation lamp 10, if installed), and if the water level is low, it is checked until the water level reaches the lower limit position 18. Replenish cleaning water. In this way, the pump 7a is operated to spray cleaning water from the spray nozzle 7b toward the transportation means 1, and the deposits adhering to the transportation means 1 are washed away, and together with the cleaning water, the cleaning water is temporarily transferred to the cleaning water treatment tank 4.
The water is allowed to flow down to the central part 4a of the tank, and the deposits are separated from the cleaning water by the deposit separator 5 in the same manner as described above, and the water level in the circulating water tank 6 is determined when the separated deposits reach a predetermined amount. The operation of discharging the deposits is repeatedly performed based on the detection of the upper limit.

In this way, the device of the present invention removes fine powder deposits adhering to the transportation means 1 by washing with washing water, causes the deposits to flow down to the center of the washing water treatment tank together with the washing water, and then The water flow is made wider in total by passing the water flow from diagonally downward to diagonally upward through the intervals between the inclined plates 5a of the adhesion separation device 5, which is assembled in steps with a plurality of inclined plates 5a having a predetermined interval. By averaging the flow as a shallow water flow flowing on the sloped plate 5a, slowing the flow velocity and shortening the settling distance, deposits can be easily and efficiently separated from the wash water, and after separation, they fall and the wash water is treated. The point at which the deposits accumulated at the bottom of the tank reach the lower edge of the outlet 4b is detected by the water level of the wash water that overflowed into the circulating water tank 6, and all the water on the deposits is drained and the water is transferred to the tank. It can be discharged to the outside in a short time, and it can separate deposits and washing water very efficiently.In addition, such a compact adhesion separation device 5 is installed inside the washing water treatment tank 4, so it does not require a large Since no equipment is required, it can be installed in a narrow space, and it can be installed at each transfer point of a large number of transportation means 1 to wash and remove deposits adhering to each transportation means 1. Since the removed deposits can be separated from the wash water, deposit treatment operations such as separation and discharge of deposits are significantly improved.

As described in detail above, the deposit washing and removal device according to the present invention provides a deposit separation system that efficiently separates deposits into the washing water treatment tank 4 in which the deposits washed and removed from the transportation means 1 flow down together with the washing water. A device 5 is installed, and most of the cleaning water can be removed by draining the deposits separated from the water level of the cleaning water overflowing outside the cleaning water treatment tank 4 by knowing when the water reaches a predetermined amount. The structure is such that only the accumulated deposits are discharged without any residue, and the cleaning water from which the deposits have been separated is circulated and used repeatedly.It can be installed in a narrow space, and there is no need for manual labor to separate the deposits. It has excellent advantages such as not being exposed to dust, can be manufactured at a lower cost than conventional equipment, prevents dust from being generated from the means of transportation 1, improves the working environment, and improves the work of removing deposits. It has excellent advantages such as being able to achieve the following, and its practical value is great.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the device of the present invention;
FIG. 2 is a front view showing a part of the inventive device shown in FIG. 1 in cross section, FIG. 3 is a perspective view showing one embodiment of the deposit separation device installed in the inventive device, and FIG. 4 is a vertical cross-sectional view along the center line of FIG. 3; 1... transportation means, 2... saucer, 3... drain pipe,
4...Washing water treatment tank, 4a...Central part, 4b...
Accumulated matter discharge port, 4c... Overflow port, 4d... Drain port, 5... Deposit separation device, 5a... Inclined plate,
5b...Fixing tool, 5c...Stopper, 6...Circulating water tank, 7...Circulating pipe, 7a...Pump, 7b...
...Spray nozzle, 8... Deposit deposit layer, 9...
Water level detector, 10... Operation confirmation lamp, 11...
Electromagnetic pulp for drainage, 12... Lid opening/closing device, 13
...Lid, 14...Saucer side electromagnetic pulp, 15...
Washing water treatment tank side electromagnetic pulp, 16... Inclined plate washing nozzle, 17... Buffer plate, 18... Water level lower limit position.

Claims (1)

[Claims for Utility Model Registration] 1. A spray nozzle 7b and a saucer 2 provided below the return portion of the transportation means 1, and a spray nozzle 7b attached to the lower part of the saucer 2.
A drain pipe 3 through which washing water that has removed the deposits that spouted out and adhered to the transportation means 1 and deposits that were washed and removed by the washing water flows down from the tray 2, and a lower end of the drain pipe 3 is connected to the center of the drain pipe 3. 4a, a deposited deposit outlet 4b is inserted at the bottom,
The washing water treatment tank 4 is provided with an overflow port 4c at the top of the side wall and a drain port 4d at approximately the center of the side wall. A plurality of inclined plates 5a each having an opening in the center are assembled in a stepped manner with a predetermined interval and are attached to the upper part of the wash water treatment tank 4 and inserted into the wash water treatment tank 4. A deposit separation device 5 whose lower end of the drain pipe 3 is inserted into a central cavity, an inclined plate cleaning nozzle 16 that spouts cleaning water toward an inclined plate 5a of the deposit separation device 5, and a cleaning device. It has approximately the same volume as the water treatment tank 4 and is installed below it, and a pipe from the overflow port 4c of the wash water treatment tank 4 and a pipe from the drain port 4d are opened via the drainage electromagnetic valve 11, and the washing water A circulating water tank 6 for storing the washing water flowing down from the processing tank 4, a sloping plate for extracting the washing water from the lower part of the circulating water tank 6 and sending it to the spray nozzle 7b via the saucer-side electromagnetic valve 14 for circulation use. A circulation pipe 7 and a pump 7a for sending water to the cleaning nozzle 16 via the electromagnetic valve 15 on the cleaning water treatment tank side, and a volume installed in the circulation water tank 6 from the lower limit of the water level to the drain port 4b of the cleaning water treatment tank 4. A water level detector 9 which detects a water level above the upper limit of the water level and opens the drainage electromagnetic valve 11. 2. The deposit washing and removing device according to claim 1, wherein the washing water treatment tank 4 has an upper part formed into an upright cylindrical shape and a lower part formed into an inverted conical shape.