KR102659503B1 - Pneumatic conveyor operating system for preventing curing carryng materials - Google Patents

Abstract

The present invention analyzes the detection signal of the load cell and, when it is determined that a certain weight of conveyed material has been input into the main body case, controls the cleaning means for a time set by a timer to clean the dome valve and prevents further transfer from the hopper into the main body. The opening and closing means are controlled to prevent water from being introduced so that the conveyed material inside the main body is transferred to the storage means. If it is determined that there is no transported material inside the main body by analyzing the detection signal of the load cell, the transported material is transferred from the hopper back into the main body. Control means for controlling the cycle of controlling the opening and closing means to be turned on repeatedly; A conveyed material input hopper into which the transported material is input; A main body case with a chute installed inside to lower the conveyed material; An intermediate connection pipe installed between the outlet of the conveyed material input hopper and the inlet of the main body case to deliver the transported material discharged from the transported material input hopper to a chute within the main body case; a transfer material discharge pipe that delivers the transfer material discharged from the main body case to a transfer material storage means; Opening/closing means for opening or closing the inlet of the intermediate connection pipe according to a control signal from the control means to allow or not allow the transported material in the transported material input hopper into the main body case; Compressed air supply means for supplying compressed air into the chute of the main body case according to a control signal from the control means so that the conveyed material in the chute is moved to the transported material storage means through the transported material discharge pipe by the driving force of the compressed air; a cleaning means for removing sediment adhering to the dome valve by spraying cleaning water on the dome valve of the opening and closing means according to a control signal from the control means; A load cell that detects the weight of the transported material loaded inside the main case; and a timer for counting the cleaning water supply time of the cleaning means.

Description

Pneumatic conveyor operating system that can prevent hardening of conveyed material {PNEUMATIC CONVEYOR OPERATING SYSTEM FOR PREVENTING CURING CARRYNG MATERIALS}

The present invention relates to a pneumatic conveyor operating system that can prevent hardening of conveyed material.

In particular, the present invention cleans the dome valve that opens and closes at regular intervals to feed the conveyed material from the hopper to the main body case, preventing scratches on the surface of the dome valve caused by sediment adhering to the dome valve, thereby preventing transportation due to air leakage. This is to prevent a decrease in water transfer efficiency.

In addition, the present invention prevents hardening of the conveyed material inside the main case, which may occur when the conveyed material remaining inside the main case is left unattended due to a decrease in transport efficiency.

In general, in the process of wastewater and excrement treatment at wastewater treatment plants or environmental business facilities, conveyor devices using pneumatic pressure are widely used to solve unnecessary space or location and other cleanliness problems when installing machines.

Conveyors using such pneumatic pressure use compressed air. Due to the mechanical structure, the object to be transported is stored inside a sealed container, and then the inlet at the top of the storage container is closed and the compressed air is instantly blown into the machine to inject it. The material inside is transported through the pipeline by air pressure.

This transport method has no restrictions on the location and space of the conveyor when installing the machine, and allows free transport of vertical, horizontal, and curved pipes, and transports waste through a sealed pipeline, which causes bad odor and harmful effects on the surrounding environment. can be solved, and long-distance transportation has the advantage of being very economical.

In such conventional pneumatically used transport equipment for contaminants and sludge, clogging occurs during transport due to the characteristics of viscosity and physical properties inside the transport pipe and inside the machine.

In other words, materials transported on a pneumatic conveyor, such as highly viscous sludge or vinyl components among crops, or materials that are difficult to push out with air, will remain in the pipe if they cannot be transported within a short period of time due to the pneumatic conveyor and transportation equipment.

And if the compressed air does not push out the conveyed material, when the input valve opens, the compressed air escapes in the opposite direction, making a loud noise, and the conveyed water contained inside the sealed storage container jumps out to the outside and around the conveyor and the sealed storage container. There is a problem with the interior becoming dirty.

This phenomenon is an electrically automatic operation in which the input valve automatically opens and closes when the time is right, and the series of processes of opening and closing when the time is right is continuously repeated regardless of whether the transported material inside the machine and pipe is transported. It arises during the operating process.

Therefore, the above conventional technology can only be used by manually disconnecting the piping line when the pneumatic conveyor is blocked, completely removing the sludge that was blocking the pipe, cleaning the piping, and reassembling it, so it requires cleaning and disassembly. There is a cumbersome and inconvenient problem.

In addition, pneumatic conveyors also use a timer transfer method to transport waste generated at sewage and wastewater treatment plants.

In the timer transfer method, after installing a device at a sewage and wastewater treatment plant, the amount of waste discharged differently at each site is visually estimated and the timer is initially set based on average data, thereby preventing unnecessary transfer by the timer even when the amount of waste is not sufficient. When the operation is performed and there is a large amount of sewage and wastewater inflow, especially during the rainy season, the amount of waste increases. If you do not respond quickly, such as by setting the cycle time faster, the waste may overflow out of the device, contaminating the surrounding area or preventing smooth operation. Operation becomes difficult.

To improve this problem, a weight-sensing fixed-quantity transfer method was developed, which measures the amount of waste flowing into the device and transfers it when the desired amount is reached.

However, this method is also transferable only when the amount of waste reaches a certain amount, so it is possible to respond appropriately when the amount of waste is small or a large amount is suddenly discharged. However, in sewage and wastewater treatment plants in rural areas where there are relatively few people living, the amount of waste is small. As this is normal, transfer is usually carried out once a day or once every few days. As a result, a hardening phenomenon occurs in which the waste accumulated inside the conveyor hardens, and at the time of transfer, the initial point of the transfer pipe is blocked, preventing smooth transfer operation. There is a difficult problem.

In addition, the dome valve configured in the pneumatic conveyor system is not suitable for transporting sediment. In particular, sand sticks between the dome valve surface and the rubber packing, which not only seriously affects sealing, but also causes sand to form on the inner wall of the dome valve body when the conveyed material is transported within the body while the dome valve is closed. It sticks, and as a result, the surface of the dome valve is scratched due to friction, and air leaks through this, causing great disruption to the transport of sediment.

Republic of Korea Patent Registration No. 10-0535906 relates to a waste transport device using pneumatic and hydraulic pressure, which includes an airtight storage container for collecting dehydrated cakes or grains discharged from a dehydrator and a grain processor, and a lower center portion of the airtight storage container. In the waste transport device using pneumatic pressure, which consists of a transfer pipe that is connected to and transports the discharged matter in the sealed storage container to a designated location, and a solenoid valve installed on one side of the sealed storage container to open and close the air pressure into the sealed storage container, A pressure gauge installed on one side of the sealed storage container and checking the pressure within the sealed storage container; A strain gauge is attached to the inside of the sealed storage container and measures the weight by compressing the contents flowing into the sealed storage container, and is attached to the pipe of the solenoid valve attached to one side of the sealed storage container to emit a predetermined water pressure. A hydraulic solenoid valve capable of this; It is configured to include a control panel that can be controlled by connecting the pressure gauge, strain gauge, solenoid valve, and water pressure solenoid valve, and deviates from the existing automatic operation method based on a timer to accurately transfer the conveyor per time and eliminate unnecessary pneumatic consumption. It prevents power loss and achieves economical use at the same time, and when the pneumatic conveyor is clogged, the conveyed material within the pipe can be easily removed without a person disconnecting the piping line, enabling the use of a stable, convenient, and reliable waste transportation device. We are making it possible.

Republic of Korea Patent Publication No. 10-2011-0073499 relates to a method and device for a pneumatic transfer system, which involves converting the tank space of a supply tank or feed chute into a conveyor pipe in a pneumatic material transfer system, such as a waste transfer system for materials such as waste materials. To drain; The tank space includes at least one injection opening for injecting material into the tank space, at least one outlet opening for draining the tank space with a conveyor pipe, and an outlet provided between the conveyor pipe and the tank space. side valve, which regulates the access of the material to the conveyor pipe through the outlet opening of the material container, wherein the negative pressure applied within the conveyor pipe during the draining phase, together with the ambient air pressure applied within the supply tank, allows the material to enter the supply tank. 1. A device provided for transfer from a conveyor pipe to a conveyor pipe, wherein a wall member located within the supply tank is positioned away from an outlet opening of the supply tank and/or away from an outlet valve in two positions, namely: so that the wall member operates between a first position in which access of material near the outlet opening of the supply tank is regulated and a second position in which the wall member essentially does not restrict access of material near the outlet opening of the supply tank. and configured to include means for movement of the wall member from the first position to the second position to effect rapid and effective draining from the supply tank to the conveyor pipe.

Republic of Korea Patent Registration No. 10-1203739 relates to a conveyor-type fixed-quantity distribution waste supply device. It is a supply device for transporting waste such as sludge or waste vinyl and supplying it to a designated location, and has a storage space of a certain capacity. a waste storage tank formed to store waste; A conveyor consisting of a transfer belt driven by an actuator, the end of the transfer belt is arranged to be connected to the waste storage tank, and the conveyor receives the waste discharged from the waste storage tank and transfers it to a designated location; It is provided with a waste distribution port installed to be spaced upward from the upper surface of the transport belt, and the waste distribution port reciprocates back and forth along the transport direction of the transport belt, and the height of the waste loaded and transported on the upper surface of the transport belt Includes a distributor to ensure that is uniform; The distributor includes a fixed frame installed at a predetermined height on a predetermined position of the conveyor; a driving motor fixed to the fixed frame; a rotating plate coupled to the rotating shaft of the driving motor; a drive shaft whose both ends are rotatably fixed to the fixed frame; a link bar, one end of which is pin-connected to a position spaced apart from the center of the rotating plate, and the other end of which is pin-connected to the drive shaft; It is coupled to the drive shaft and extends downward, but is installed to be spaced upward from the upper surface of the transfer belt, and includes a waste distribution port in the shape of a plate, wherein the rotational movement of the rotary plate according to the operation of the drive motor moves the link bar. It is transmitted to the drive shaft through the drive shaft and is configured to reciprocate back and forth between the drive shaft and the waste distribution port in a predetermined angle range, so that the waste can be evenly spread and transported below a certain height through the front and back reciprocation of the waste distribution port. It can be supplied in a fixed quantity to the desired location, and when used for sludge treatment, the sludge is evenly distributed over the entire surface of the transport belt, thereby increasing the efficiency of sludge treatment.

However, the above-mentioned technologies only allow the transport operation of the transported object to be performed according to preset standards, and the transport operation of the transported object is performed variably by appropriately linking the load cell and timer information, or weather changes such as external temperature, summer These technologies were insufficient to effectively perform transfer operations by appropriately combining seasonal conditions such as winter and winter.

1. Republic of Korea Patent Registration No. 10-0535906 (registered on December 5, 2005, name: waste transport device using pneumatic and hydraulic pressure) 2. Republic of Korea Patent Publication No. 10-2011-0073499 (published on June 29, 2011, name: method and device of pneumatic conveying system) 3. Republic of Korea Patent Registration No. 10-1203739 (Registered on November 15, 2012, Name: Conveyor-type fixed-quantity distribution waste supply device)

The purpose of the present invention is to prevent scratches on the surface of the dome valve caused by sediment adhering to the dome valve by cleaning the dome valve that opens and closes at regular intervals to feed the conveyed material from the hopper to the main body case, thereby preventing air leakage. The goal is to provide a pneumatic conveyor operation system that prevents the transfer efficiency of transported materials from decreasing.

Another object of the present invention is to provide a pneumatic conveyor operating system that can prevent the hardening of the conveyed material inside the main case, which may occur when the conveyed material remaining inside the main case is left unattended due to a decrease in conveying efficiency. .

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, the pneumatic conveyor operating system of the present invention that can prevent hardening of conveyed material is

If it is determined that a certain weight of conveyed material has been input into the main body case by analyzing the detection signal of the load cell, the dome valve is cleaned by controlling the cleaning means for the time set by the timer, and no more transported material is input into the main body from the hopper. The opening and closing means is controlled so that the conveyed material inside the main body is transferred to the storage means, and when it is determined that there is no transported material inside the main body by analyzing the detection signal of the load cell, the opening and closing means is opened and closed so that the conveyed material is fed back into the main body from the hopper. Control means for controlling the cycle of controlling the means to be repeatedly performed;

A conveyed material input hopper into which the transported material is input;

A main body case with a chute installed inside to lower the conveyed material;

An intermediate connection pipe installed between the outlet of the conveyed material input hopper and the inlet of the main body case to deliver the transported material discharged from the transported material input hopper to a chute within the main body case;

a transfer material discharge pipe that delivers the transfer material discharged from the main body case to a transfer material storage means;

Opening/closing means for opening or closing the inlet of the intermediate connection pipe according to a control signal from the control means to allow or not allow the transported material in the transported material input hopper into the main body case;

Compressed air supply means for supplying compressed air into the chute of the main body case according to a control signal from the control means so that the conveyed material in the chute is moved to the transported material storage means through the transported material discharge pipe by the driving force of the compressed air;

a cleaning means for removing sediment adhering to the dome valve by spraying cleaning water on the dome valve of the opening and closing means according to a control signal from the control means;

A load cell that detects the weight of the transported material loaded inside the main case; and

It is characterized in that it consists of a timer that counts the cleaning water supply time of the cleaning means.

In the present invention, the control means is

A first step of opening the dome valve of the opening and closing means to inject the conveyed material in the conveyed material input hopper into the main body case;

A second step of analyzing in real time the weight of the transported material loaded in the main body case detected by the load cell;

A third step of controlling the cleaning means to clean the dome valve when the conveyed material loaded inside the main body reaches the set weight;

When the cleaning of the dome valve for a certain period of time is completed, a fourth step of closing the dome valve of the opening and closing means to block further transfer material from being input into the main body from the hopper;

A fifth step of allowing the transfer material loaded inside the main body to be transferred to the storage means through the transfer pipe; and

When all the conveyed material loaded in the main case is transferred to the storage means, the dome valve of the opening and closing means is opened to allow the conveyed material to be introduced from the hopper into the main case again; the transport operation is controlled. .

In the present invention, the control means is

It is characterized by variably setting the spray time of the cleaning water sprayed onto the dome valve through the cleaning means according to the weight of the transported material loaded inside the main body.

In the present invention, the cleaning means is

It is characterized in that a cleaning operation is performed on the intermediate connector and the chute of the main body case under the control of the control means.

In the present invention, the cleaning means is

A ring-shaped washing water supply pipe fixedly installed inside the intermediate connection pipe;

a main washing water supply pipe installed through the outer wall of the intermediate connection pipe, the end of which is connected to the ring-shaped washing water supply pipe, and delivering washing water to the ring-shaped washing water supply pipe;

a washing water spray nozzle mounted on the outer circumferential surface of the ring-shaped washing water supply pipe and spraying washing water to the inside of the intermediate connection pipe, the inside of the chute, and the dome valve;

A solenoid valve for washing water control, which is installed in the main washing water supply pipe and opens or closes the valve according to a control signal from the control means to supply or block washing water to the ring-shaped washing water supply pipe; And

A check valve for washing water control is installed on the main washing water supply pipe disposed between the solenoid valve for controlling the washing water and the ring-shaped washing water supply pipe to prevent the washing water flowing in the direction of the ring-shaped washing water supply pipe from flowing back.

According to the pneumatic conveyor operating system of the present invention, which can prevent hardening of transported materials, the dome valve that opens and closes to input the transported materials from the hopper into the main case is cleaned at regular intervals, causing sediment to adhere to the dome valve. By preventing scratches on the surface of the dome valve, a decrease in transfer efficiency due to air leakage can be prevented.

In addition, some transfer material that has not yet been transferred to the storage means remains inside the main body case, especially in the chute, etc., and if the transfer operation of the transfer material is not performed for a long time in this state, the remaining transfer material hardens. When this happens, the main body can be transferred to the storage means. The weight of the transported material loaded inside the case cannot be accurately determined. Therefore, in the present invention, the transfer operation is performed when the weight of the transfer material loaded inside the main case reaches a certain weight to improve transfer efficiency, and the durability of the dome valve can also be improved by cleaning the dome valve through a cleaning means. there is.

Other effects will be readily apparent to those skilled in the art from the description below.

1 is a front view of a pneumatic conveyor operating system capable of preventing hardening of conveyed material according to an embodiment of the present invention;
Figure 2 is a side view of Figure 1;
3 is a plan view of the cleaning means;
Figure 4 is a side view of the cleaning means;
Figure 5 is a diagram showing the sand and sludge coating phenomenon caused by air leakage from the dome valve.
Figure 6 is a control configuration diagram of a pneumatic conveyor operating system capable of preventing hardening of conveyed material according to an embodiment of the present invention.
Figure 7 is a diagram showing a basic cycle without the operation of the cleaning means in the present invention.
Figure 8 is a diagram showing a basic cycle including the operation of the cleaning means in the present invention.
9 is a flowchart of the operation of the present invention.
A clear embodiment of the present invention is shown through the drawings and is described in more detail in the following. These drawings are not intended to limit the scope of the present invention in any way, but are intended to help those skilled in the art understand the concept of the present invention with reference to specific embodiments.

Since the present invention can be subject to various changes and have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text.

However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.

below. Embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a front view of a pneumatic conveyor operating system capable of preventing hardening of conveyed material according to an embodiment of the present invention, Figure 2 is a side view of Figure 1, Figure 3 is a top view of a cleaning means, Figure 4 is a cleaning means This is a side view. Figure 5 is a diagram showing the sand and sludge coating phenomenon caused by air leakage from the dome valve. Figure 6 is a control configuration diagram of a pneumatic conveyor operating system that can prevent hardening of conveyed material according to an embodiment of the present invention. Figure 7 is a diagram showing the basic cycle in the present invention without the operation of the cleaning means. Figure 8 is a diagram showing a basic cycle including the operation of the cleaning means in the present invention. Figure 9 is an operational flow chart of the present invention.

As shown in FIGS. 1, 2, and 6, the pneumatic conveyor operating system that can prevent the hardening phenomenon of the conveyed material according to the present invention includes a conveyed material input hopper 110 into which the transported material is input; A main body case 120 with a chute 121 installed therein for lowering the conveyed material; An intermediate device installed between the outlet of the conveyed material input hopper 110 and the inlet of the main body case 120 to deliver the conveyed material discharged from the transported material input hopper 110 to the chute 121 within the main body case 120. Connector 130; A transfer material discharge pipe 140 that delivers the transfer material discharged from the main case 120 to the transfer material storage means; Opening and closing means ( 150); Compressed air is supplied into the chute 121 of the main case 120 in accordance with the control signal from the control means 100, and the conveyed material in the chute 121 is transferred through the conveyed material discharge pipe 140 by the driving force of the compressed air. Compressed air supply means (160) for moving to the water storage means; A cleaning means 170 for spraying washing water to the dome valve 151 of the opening and closing means 150 in accordance with a control signal from the control means 100 to remove stuck sediment, etc.; And opening or closing the opening and closing means 150, and operating the compressed air supply means 160 when the opening and closing means 150 is closed after the conveyed material is introduced into the chute 121 of the main case 120, It includes a control means (100) that operates the cleaning means (170) to clean the dome valve (151).

The opening and closing means 150 secures the dome valve 151, which opens or closes the inlet of the intermediate connector 130, to the inside of the intermediate connector 130, A shaft rotation means 152, at one end of which protrudes outward from the middle connector 130, is installed on the middle connector 130, and supports the shaft rotation means 152, as well as a shaft rotation means 152. ) is erected in the shape of a '1' on the outside of the main body case 120, and a bearing means 153 for smoothly rotating, and the stroke of the piston rod is controlled according to a control signal from the control means 100. The adjusting actuator 154 and the lower part of the actuator 154 are connected to the outer surface of the main body case 120, and the lower part of the actuator 154 is connected to the main body case 120. Between the actuator lower shaft rotation means 155 that rotates the axis in the front-back direction, the end of the shaft rotation means 152 protruding outside of the intermediate connector 130, and the end of the piston rod of the actuator 154. It is installed and consists of a motion conversion means (156) that changes the linear motion of the piston rod into a rotary motion and rotates the shaft rotation means (152).

When the stroke of the piston rod is reduced in the opening and closing means 150, the dome valve 151 closes the inlet of the intermediate connection pipe 130 to block the input of conveyed material from the hopper 110 to the main body case 120, When the stroke of the piston rod is extended, the dome valve 151 opens the inlet of the intermediate connector 130 to enable the input of conveyed material from the hopper 110 to the main case 120.

The conveyed material discharge pipe 140 is bent in the shape of a cross-section, and has an elbow pipe 141 whose inlet is flange coupled to the outlet of the main body case 120, and an elbow pipe 141 whose inlet is connected to the outlet of the elbow pipe 141. A reducer 142, a flexible pipe 143 whose inlet is flange-connected to the outlet of the reducer 142 and is flexibly bent, and an inflexible tube 143 whose inlet is flange-connected to the outlet of the flexible pipe 143. (Inflexible) It consists of a pipe (144).

The compressed air supply means 160 is installed in the compressed air supply pipe 161 and a compressed air supply pipe 161 for supplying compressed air into the main body case 120, and is installed in the compressed air supply pipe 161 according to a control signal from the control means 200. A solenoid valve 162 for compressed air control that automatically supplies or blocks compressed air into the main case 120 is installed on the compressed air supply pipe 161, and the valve is opened at the front of the solenoid valve 162 for compressed air control. Or, a manual valve 163 for compressed air control that transmits or blocks compressed air to the solenoid valve 162 for compressed air control by closing it, and compressed air disposed between the solenoid valve 162 for compressed air control and the main body case 120. It consists of an air pressure measuring means 164 installed in the supply pipe 161 to measure the air pressure within the main case 120.

The present invention also includes a pressure release means 190 that discharges the compressed air filled in the main body case 120 to the outside of the main body case 120 in order to lower the air pressure within the main body case 120.

The pressure release means 190 includes a compressed air discharge pipe 191 branched from the compressed air supply pipe 161 disposed between the compressed air control solenoid valve 162 and the air pressure measurement means 164, and the compressed air discharge pipe A solenoid valve (192) for compressed air release, which is installed in (191) and opens and closes the valve according to a control signal from the control means (100) to discharge the compressed air filled inside the main case (120) through the compressed air discharge pipe (191). and a solenoid valve for compressed air release ( It consists of a manual valve 193 for releasing compressed air pressure that is delivered or not delivered to 192).

The cleaning means 170 is installed on the outer wall of the ring-shaped cleaning water supply pipe 171 and the intermediate connection pipe 130, and has an end connected to the ring-shaped cleaning water supply pipe 171, and has a ring-shaped A main washing water supply pipe 172 that delivers washing water to the washing water supply pipe 171, and one or more washing machines installed on the outer circumferential surface of the ring-shaped washing water supply pipe 171 to spray washing water on the dome valve 151. It consists of a water spray nozzle (173).

The ring-shaped washing water supply pipe 171 is installed at the inner top of the intermediate connection pipe 130, and the inner radius of the ring-shaped washing water supply pipe 171 is larger than the rotation radius of the dome valve 151, so that the dome valve 151 When the axis rotates, it goes in and out of the ring-shaped washing water supply pipe (171).

The washing water spray nozzle 173 includes a peripheral surface of the ring-shaped washing water supply pipe 171 diagonally facing the chute 121 in the main body case 120, and the ring-shaped washing water. It is installed on the circumferential surface of the ring-shaped washing water supply pipe 171 facing the ground at an angle of 90° relative to the horizontal plane in the supply pipe 171.

The washing means 170 is installed in the main washing water supply pipe 172 and is used for controlling washing water to supply or block washing water to the ring-shaped washing water supply pipe 171 according to a control signal from the control means 100. It is installed on the solenoid valve 174 and the main washing water supply pipe 172 disposed between the solenoid valve 174 for controlling washing water and the ring-shaped washing water supply pipe 171, and flows in the direction of the ring-shaped washing water supply pipe 171. It includes a check valve 175 for controlling the washing water to prevent the washing water from flowing back.

The present invention also includes three or more supports 210, the upper part of which is fixedly coupled to the main body case 120, and which separates the main body case 120 from the ground, and each support 210 is installed below, It further includes a load cell 221 that outputs a voltage proportional or inversely proportional to the weight transmitted through each support 210 to measure the weight transmitted through each support 210.

The control means 100 calculates the total weight by adding up the weight measured from each load cell 221, and cleans the dome valve 151 when a certain weight of conveyed material is loaded inside the main case 120. Operate the cleaning means (170).

That is, as shown in FIG. 5, the dome valve 151 allows air to flow through the dome valve 151, as foreign substances (G) such as sand grains become stuck between the packing and the disk when transporting sediment, making sealing impossible. It leaks, causing sand and sludge coating.

Therefore, the problem can be solved by mounting a brush on the dome valve 151 to enable disk cleaning or by using a butterfly valve. In the present invention, the disk is cleaned by operating the cleaning means 170.

As shown in Figure 6, the operating system of the present invention includes a control means 100, an opening and closing means 150, a compressed air supply means 160, a cleaning means 170, and a timer 220. , may be configured to include a load cell 221.

The control means 100 analyzes the detection signal of the load cell 221 and, when it is determined that a certain weight (set weight) of transported material has been input into the main case 120, the cleaning means ( 170) is controlled to clean the dome valve 151, and the opening and closing means 150 is controlled to prevent any more conveyed material from being input from the hopper 110 into the main body case 120 to transfer the inside of the main body case 120. Water is transferred to the storage means through the transfer pipe 140, and when it is determined that there is no transfer material inside the main body case 120 by analyzing the detection signal of the load cell 221, the main body 120 is transferred from the hopper 110. The opening and closing means 150 is controlled so that the conveyed material is introduced back inside.

That is, control of the opening and closing means 150 for inputting the transported material from the hopper 110 into the main body 120, analysis of the weight of the transported material loaded inside the main body case 120, and conveyed material loaded inside the main body case 120. Control of the cleaning means 170 according to weight, control of the cleaning operation for the dome valve 151, control of the opening and closing means 150 for blocking the input of conveyed material from the hopper 110 into the main body case 120, main body case (120) Operation control for transferring the internal conveyed material to the storage means through the transfer pipe 140, analysis to determine whether the transported material exists inside the main body 120, and transfer from the hopper 110 to the inside of the main body 120. The cycle consisting of controlling the opening/closing means 150 for re-introducing the conveyed material is controlled to be performed repeatedly.

The opening and closing means 150 is controlled by the control means 100 to input or block the conveyed material from the hopper 110 to the main case 120, and is controlled by the dome valve 151 configured in the opening and closing means 150. The conveyed material is input or blocked depending on the opening and closing of the intermediate connector 130.

When the compressed air supply means 160 determines that the conveyed material is loaded at a certain weight inside the main body case 120, the transported material inside the main case 120 is transferred to the storage means through the transported material discharge pipe 140. Compressed air is supplied into the main body case 120 under the control of the control means 100 to ensure smooth transfer.

When the cleaning means 170 determines that a certain weight of conveyed material is loaded inside the main case 120, the cleaning means 170 cleans the dome valve 151 under the control of the control means 100.

That is, in a state in which the dome valve 151 is closed, the conveyed material loaded into the hopper 110, especially sediment, adheres to the surface of the dome valve 151. In this state, the dome valve 151 is opened to open the hopper. By repeating the operation of injecting the conveyed material from (110) into the main case 120 and closing the dome valve 151 again after the input is completed, the sediment adhering to the surface of the dome valve 151 is removed. If it remains in an untreated state, scratches may occur, and air may leak out through this, making the transfer operation inefficient. As a result, some of the transfer material will remain in the main body case 120 and harden.

Therefore, in the present invention, the dome valve 151 is opened to allow the transfer material to be input from the hopper 110 to the main body case 120, and the surface of the dome valve is cleaned by spraying cleaning water on the dome valve 151 for a certain period of time. Sediment adhering to the surface is removed.

The timer 220 is set to the time at which cleaning water is sprayed to the dome valve 151 through the cleaning means 170.

The load cell 221 detects the weight of the transported material loaded when the dome valve 151 is opened and the transported material is input from the hopper 110 to the main case 120. The loaded transport detected by the load cell 221 When the water weight reaches a preset weight, the control means 100 controls the cleaning means 170 for a certain period of time to clean the dome valve 151, and controls the transfer material to be transferred from the main case 120 to the storage means. do.

In the pneumatic conveyor operating system of the present invention configured as described above, the basic cycle that does not include a cleaning operation is as shown in FIG. 7, where the dome valve 151 is opened and the conveyed material ( M) is input (a), and the load cell 221 detects whether the weight of the transported object loaded (input) into the main case 120 reaches the set weight, and determines whether the weight of the transported object reaches the set weight ( b), with the dome valve 151 closed, the conveyed material (M) is transferred from the main body case 120 to the storage means (c), and the transported material is loaded into the main body case 120 by the load cell 221 Detecting whether all (M) has been transferred to the storage means (d), and opening the dome valve 151 again to allow the transferred material (M) to be re-introduced from the hopper 110 to the main case 120 (e) This is repeated.

On the other hand, in the cycle including the cleaning operation in the pneumatic conveyor operating system of the present invention, as shown in FIG. 8, the dome valve 151 is opened and the conveyed material (M) is transferred from the hopper 110 to the main case 120. It is detected by the load cell 221 (b) whether the weight of the transported material loaded (introduced) into the main case 120 reaches the set weight (b), and the sediment, etc. is adhered and remains in an open state. The dome valve 151 is cleaned through the cleaning means 170 (c), and the dome valve 151 from which sediments have been removed is closed to prevent further input of conveyed material from the hopper 110 to the main case 120. In the blocked state, the conveyed material (M) is transferred from the main case 120 to the storage means (d), and the load cell 221 indicates that all the transported materials (M) loaded on the main case 120 have been transferred to the storage means. It is detected by (e), and the operation (f) of opening the dome valve 151 again to re-introduce the conveyed material (M) from the hopper 110 to the main case 120 is repeatedly performed.

The overall operational flow of the present invention is described with reference to FIG. 9 as follows.

The control means 100 opens the dome valve 151 to inject the transported material in the hopper 110 into the main case 120 (S10).

Next, the control means 100 analyzes the weight of the transported material in the main body 120 detected by the load cell 221 in real time (S20).

Next, as a result of the analysis by the control means 100, when the weight of the transported material loaded inside the main case 120 reaches the set weight, the cleaning means 170 is operated to clean the dome valve 151. (S30) )

Next, when the cleaning of the dome valve 151 is completed for a certain period of time, the control means 100 controls the opening and closing means 150 to close the dome valve 151, thereby removing the main body case 120 from the hopper 110. Blocks any further transfer material from entering the interior (S40).

Next, the control means 100 controls the transfer material loaded inside the main case 120 to be transferred to the storage means through the transfer pipe 140 (S50).

Next, as a result of analyzing the detection signal by the load cell 221, the control means 100 determines that there is no transported material inside the main body 120, that is, all of the transported material from the main body case 120 to the storage means is If it is determined that it has been transferred, the opening and closing means 150 is controlled to open the dome valve 151 so that the transferred material is again introduced from the hopper 110 into the main body case 120 (S60).

According to the present invention, cleaning water is saved by accurately detecting the weight of the transported material loaded on the main case 120 through the load cell 221 and then operating the cleaning means 170 while counting the time by the timer 220. Of course, transfer efficiency can be improved by preventing the transferred material from hardening around the dome valve 151 and on the inner wall of the chute 121 within the main body case 120.

In other words, when the pneumatic conveyor is used for a long time, sediment, etc. adheres to the dome valve and becomes stuck, which usually causes a load when operating the dome valve. However, in the present invention, the area around the dome valve 151 is always kept clean. As it can be maintained, it is possible to prevent overload caused by the conveyed material being caught when the dome valve (151) rotates.

As described above, in the detailed description of the present invention, preferred embodiments of the present invention have been described, but this is an illustrative description of the best embodiment of the present invention and does not limit the present invention. In addition, it goes without saying that anyone with ordinary knowledge in the technical field to which the present invention pertains can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Accordingly, the scope of the present invention is not limited to the above-described embodiments, but may be implemented in various forms of embodiments within the scope of the appended claims. In addition, it is considered to be within the scope of the claims of the present invention to the extent that anyone skilled in the art can make changes without departing from the gist of the invention claimed in the claims.

100: Control means 110: Transport material input hopper
120: main body case 121: suit
130: middle connector 140: conveyed material discharge pipe
150: opening and closing means 160: compressed air supply means
170: cleaning means 190: depressurizing means
210: support 220: timer
221: load cell

Claims (5)

If it is determined that a certain weight of conveyed material has been input into the main body case by analyzing the detection signal of the load cell, the dome valve is cleaned by controlling the cleaning means for the time set by the timer, and no more transported material is input into the main body from the hopper. The opening and closing means is controlled so that the conveyed material inside the main body is transferred to the storage means, and when it is determined that there is no transported material inside the main body by analyzing the detection signal of the load cell, the opening and closing means is opened and closed so that the conveyed material is fed back into the main body from the hopper. Control means for controlling the cycle of controlling the means to be repeatedly performed;
A conveyed material input hopper into which the transported material is input;
A main body case with a chute installed inside to lower the conveyed material;
An intermediate connection pipe installed between the outlet of the conveyed material input hopper and the inlet of the main body case to deliver the transported material discharged from the transported material input hopper to a chute within the main body case;
a conveyed material discharge pipe that delivers the conveyed material discharged from the main body case to a conveyed material storage means;
Opening/closing means for opening or closing the inlet of the intermediate connection pipe according to a control signal from the control means to allow or not allow the transported material in the transported material input hopper into the main body case;
Compressed air supply means for supplying compressed air into the chute of the main body case according to a control signal from the control means so that the conveyed material in the chute is moved to the transported material storage means through the transported material discharge pipe by the driving force of the compressed air;
a cleaning means for removing sediment adhering to the dome valve by spraying cleaning water on the dome valve of the opening and closing means according to a control signal from the control means;
A load cell that detects the weight of the transported material loaded inside the main case; and
Characterized in that it consists of a timer counting the cleaning water supply time of the cleaning means,
A pneumatic conveyor operating system capable of preventing hardening of conveyed material, characterized in that the cleaning means performs a cleaning operation on the chute of the intermediate connector and the main body case under the control of the control means.
In claim 1,
The control means is
A first step of opening the dome valve of the opening and closing means to inject the conveyed material in the conveyed material input hopper into the main body case;
A second step of analyzing in real time the weight of the transported material loaded in the main body case detected by the load cell;
A third step of controlling the cleaning means to clean the dome valve when the conveyed material loaded inside the main body reaches the set weight;
When the cleaning of the dome valve for a certain period of time is completed, a fourth step of closing the dome valve of the opening and closing means to block further transfer material from being input into the main body from the hopper;
A fifth step of allowing the transfer material loaded inside the main body to be transferred to the storage means through the transfer pipe;
When all the conveyed material loaded in the main case is transferred to the storage means, the dome valve of the opening and closing means is opened to allow the conveyed material to be introduced from the hopper into the main case again; Characterized in controlling the conveying operation consisting of the following. Pneumatic conveyor operating system that can prevent hardening of conveyed material.
In claim 1,
The control means is
A pneumatic conveyor operating system that can prevent hardening of conveyed material, characterized by variably setting the spray time of the cleaning water sprayed to the dome valve through the cleaning means according to the weight of the conveyed material loaded inside the main body.
delete In claim 1,
The cleaning means is
A ring-shaped washing water supply pipe fixedly installed inside the intermediate connection pipe;
a main washing water supply pipe installed through the outer wall of the intermediate connection pipe, the end of which is connected to the ring-shaped washing water supply pipe, and delivering washing water to the ring-shaped washing water supply pipe;
a washing water spray nozzle mounted on the outer circumferential surface of the ring-shaped washing water supply pipe and spraying washing water to the inside of the intermediate connection pipe, the inside of the chute, and the dome valve;
A solenoid valve for washing water control, which is installed in the main washing water supply pipe and opens or closes the valve according to a control signal from the control means to supply or block washing water to the ring-shaped washing water supply pipe; and
A check valve for washing water control installed on the main washing water supply pipe disposed between the solenoid valve for controlling the washing water and the ring-shaped washing water supply pipe to prevent the washing water flowing in the direction of the ring-shaped washing water supply pipe from flowing back. Pneumatic conveyor operating system that can prevent hardening.

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