KR100625211B1 - Hydro-extrating Vehicle System - Google Patents

Abstract

The present invention relates to a dehydration vehicle system that can continuously and continuously process the entire process of coagulation and dehydration from inhalation of manure or sludge as quickly as possible.

According to the present invention, the flocculation solution is stirred for about 30-40 minutes in the flocculant dilution tank, and the flocculant liquid completely diluted in water is stored in the flocculant storage tank, and the treated sludge is pumped from the storage tank at any time according to the progress of dehydration. An appropriate amount of dilute flocculant can be supplied to the coagulation tank, and the sludge inside the coagulation tank has a low specific gravity, so that the flocculation sludge floating on the coagulation tank top due to buoyancy is stored in the coagulation sludge storage tank and continuously supplied to the dehydrator by its own gravity. As a result, it is possible to effectively flocculate the sucked sludge while using the minimum flocculant, and to continuously supply the flocculating sludge to the dehydrator without a separate indentation pump.

Moisture in the coagulated sludge supplied to the hollow shaft of the rotating shaft from the coagulated sludge storage tank by its own weight is discharged to the outside of the outer cylinder screen by the centrifugal force due to the rotation of the outer cylinder screen, so that it can be manufactured in a small size and light weight, and an excellent dehydration effect can be obtained. Not only does the blinding of the outer cylinder screen resolve itself by centrifugal force, but also the screw blades, which are in close contact with the inner wall of the outer cylinder screen and rotate at a different speed than the outer cylinder screen, carry forward action of the flocculating sludge and the dewatering sludge attached to the inner wall. Since the scraping and conveying action, it is possible to continue the dehydration work without cleaning the screen during the operation.

Dewatering, sludge, sludge, flocculation

Description

Dehydration Vehicle System {Hydro-extrating Vehicle System}

1 is a block diagram showing the overall configuration of a conventional mobile sludge dewatering vehicle equipped with a screw press type dehydrator.

Figure 2 is a block diagram showing the overall configuration of a dehydration vehicle system according to an embodiment of the present invention.

3 and 4 are a plan view and a side view of a dehydration vehicle system showing the arrangement of main components.

5 is a view showing an embodiment in which a filter net is installed in the coagulated sludge discharge pipe.

6A and 6B show an embodiment in which a feeding means is provided in a dewatered sludge discharge tube.

<Explanation of symbols for the main parts of the drawings>

11: flocculant storage tank 12: flocculant dilution tank

13: flocculant encouragement 14: flocculation tank

15: coagulated sludge storage tank 22: outer cylinder screen

23: rotating shaft 24: screw blade

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehydration vehicle system for dehydrating collectively manure and sludge on-site while traveling through a small wastewater treatment facility or a manure treatment facility distributed in apartments, factories or residential complexes. The present invention relates to a dehydration vehicle system that can be manufactured in a small size and light weight and can be manufactured at low cost, and can continuously process the whole process of coagulation and dehydration from suction of manure or sludge as quickly as possible.

Regarding the daily lives of people, sewage discharged from flush toilets, baths, and kitchens, manure or sludge, liquid and solid contaminants collected from toilets, or manure or livestock wastewater from livestock, is primarily applied to each household or industry. After being treated in installed sewage purification facilities or septic tanks, it is finally treated in sewage treatment plants, wastewater treatment plants or wastewater treatment facilities.

The primary treatment in homes and industries is processed in a batch manner, that is, when a certain amount of sewage, manure, sludge, etc. is collected and moved to a final treatment place by a separate transport vehicle. Sewage, manure, sludge, etc. (hereinafter referred to as "sludge"), which is a treatment object, which is itself used as a storage tank of a transport vehicle and transported to a final treatment place. As the whole sludge is transported, it requires a large number of transportation vehicles, and in addition, a large storage facility and various sewage treatment facilities must be provided at the terminal treatment site to store and process the collected sludge. In addition, there was a problem in that facility costs and disposal costs are very high.

Accordingly, in consideration of the economics of transportation and final processing, mobile dehydration vehicles equipped with dehydration means are disclosed in Korean Patent Laid-Open Publication Nos. 2001-1499 and 2002-3594 to dehydrate the sludge at the collection site. It is.

In the former, sludge formed by agglomeration of sludge collides with a plurality of filter panels installed inside the sludge separation tank, and the sludge is loaded in the sludge separation tank as it is, and water passing through the filter panel passes through the drainage pipe and the water under the sludge separation tank. The latter is separated by a tank, and the latter is provided so that two endless filter cloth belts pass through a number of rollers, and the sludge agglomerated between the two filter cloths is depressurized.

However, in the case of the former using the filter panel, since the water in the sludge is separated only by the inertia and gravity when it hits the filter, a large amount of water remains in the sludge, and sufficient dehydration effect is not obtained, There is a problem that the filter is clogged by fine sludge and the dehydration rate is sharply lowered.

In the latter case using the filter cloth belt, the sludge located between the filter cloth belts can be passed through a number of rollers and pressurized and dewatered to be discharged as a cake.However, in order to obtain a sufficient dehydration effect, the filter cloth is formed long, and the roller is also multi-stage. Since it is necessary to install, the device is complicated and enlarged, so it is expensive to manufacture, and it takes a lot of time to dewater. In addition, it must be periodically cleaned in order to solve the blinding phenomenon of the filter cloth so that dehydration can be continuously performed. Cleaning the filter cloth belt, which is complicatedly installed in a zigzag form, removes snow blindness, which is very cumbersome and time consuming, resulting in delayed work time and high maintenance costs.

In order to solve the above-mentioned disadvantages of the belt press type dehydrator equipped dehydration vehicle, Japanese Patent Laid-Open No. 10-34196 discloses a mobile sludge dewatering vehicle equipped with a screw press type dehydrator.

1 is a view showing the overall configuration, the sludge suctioned by the pump 106a from the local storage tank 106 is stored in the sludge tank 102 once, and then mixed by a press-fit pump 103 installed at the rear end thereof. The coagulant supplied to the tank 104 and stored in the coagulant dissolution tank 105 is supplied to the mixing tank 104 by the coagulant supply pump 105a to agglomerate sludge to form sludge. The sludge formed therein is supplied to the screw press 101.

The screw press 101 is configured such that a cone shaft 101e having a screw blade 101f formed on an outer circumferential surface thereof is rotatably installed inside the outer cylinder screen 101d, and the outer circumferential surface of the screw blade is formed on an outer cylinder. It is installed in close contact with the inner circumferential surface of the screen to form a dehydration chamber in the space between the coaxial shaft screw wing-outer screen, the sludge supply hole (101g) is opened at the front end of the coaxial shaft 101e, through which the dehydration chamber To fill the sludge.

The sludge filled in the dehydration chamber is transported forward as the coaxial is rotated. As the diameter of the coaxial is increased toward the front, the volume of the dehydration chamber gradually decreases, so that the water in the sludge is gradually compressed as the sludge is transported forward. Is separated through the outer cylinder screen 101d, and the sludge from which moisture is removed is discharged to the front of the screw press in the form of a cake and transported to the final treatment place for processing.

As described above, the mobile sludge dewatering car equipped with the screw press type dehydrator has the advantage of being compact and lightweight compared to the vehicle equipped with the belt press type dehydrator, which is easy to move, but the difference in the volume of the processing chamber due to the change in the diameter of the conical coaxial shaft. As the sludge is pressurized by the dehydration, the dewatering effect is generated. Thus, the dewatering effect is lower than that of the direct pressurization of the sludge between the filter cloth belts and the pressurization in the dehydration chamber is smoothly generated. In order to do this, the flocculating sludge of the mixing tank 104 must be supplied to fill the dehydration chamber to some extent by the pressure of the indentation pump 103, so that the sludge is easily supplied to the dehydration chamber together with the flocculant without being sufficiently agglomerated in the mixing tank. Therefore, there was a problem that the consumption rate of the flocculant is greater than the dehydration effect. Compared to the filter cloth belt, the tub screen 101d is less severe in eye comfort and relatively easy to clean. However, in order to allow dehydration to be effectively performed, this also requires a separate cleaning tube 101a to be frequently cleaned. there was.                         

In addition, the dewatered sludge discharged from the discharge part of the dehydrator is transported to the final treatment place and processed, and since the discharge port of the dehydrator is located near the bottom of the loading box of the dehydration vehicle, it is not easy to load the sludge into the transport vehicle. According to the vehicle system, a conveyor belt (101b) or the like is installed in the lower portion of the dewatering sludge discharge port, discharge the cake dewatered sludge discharged from the dehydrator to the cake storage hopper 110 placed on the floor outside the vehicle and then Since it had to be reloaded on the transport vehicle, there was a problem that it takes a lot of manpower and time.

The present invention is to solve all the problems of the conventional dehydration vehicle system as described above, while being compact and lightweight and can be manufactured inexpensively, the whole process of coagulation and dehydration from suction of sludge can be continuously processed as quickly as possible. The objective is to provide a dehydration vehicle system that enables the use of such a vehicle.

It is still another object of the present invention to provide a dewatering vehicle system having agglomeration means capable of supplying continuously a dewatering means by flocculating the sludge sucked efficiently while using a minimal flocculating agent.

It is still another object of the present invention to provide a dehydration vehicle system that is equipped with a dehydration means that is compact in weight and excellent in dehydration effect, while effectively using a limited vehicle space and minimizing maintenance costs of a vehicle.

Still another object of the present invention is to provide a dehydration vehicle system configured to quickly and easily load dehydrated sludge in a cake state discharged from a dehydrator in a transport vehicle without a separate loading operation.

The dewatering vehicle system according to the present invention for achieving the above object comprises a flocculating means for flocculating the sucked sludge and a dewatering means for dehydrating the agglomerated sludge, to collectively dewater the sludge at each site. CLAIMS 1. A dewatering vehicle system comprising: a coagulant storage tank containing a coagulant for reacting with sludge and coagulating the sludge; A flocculant dilution tank provided with a flocculant stored in the flocculant storage tank and water for diluting the coagulant, and provided with a stirring blade to stir the flocculant and the water so that the flocculant is uniformly distributed in water without solidifying; An agglomeration liquid storage tank installed at a lower portion of the coagulant dilution tank via a solenoid valve, wherein the agglomeration liquid diluted in the coagulant dilution tank is discharged and stored by its own weight when the solenoid valve is opened; A flocculation tank in which the sludge to be treated and the flocculation liquid stored in the flocculation liquid storage tank are respectively introduced by a sludge pump and a flocculation pump, and are provided with a stirring blade to stir the flocculation liquid and the sludge evenly; It is installed on the side of the coagulation tank, the specific gravity is low and coupled with the coagulation tank so that the flocculation sludge floating on the coagulation tank upper portion by buoyancy can be stored, the stored coagulation sludge is discharged to the dewatering means And a coagulated sludge storage tank in which coagulated sludge discharge pipes are formed at a predetermined distance lower than that of the coagulated sludge conveying pipe.

According to this feature of the present invention, after the coagulant is stirred for about 30-40 minutes in the flocculant dilution tank and stored in the flocculant storage tank in the state of completely diluted in water, the treatment is pumped from the storage tank at any time in accordance with the progress of dehydration A proper amount of dilute flocculant can be supplied to the flocculation tank together with the target sludge, and the flocculation sludge floated on the flocculation tank by buoyancy due to low specific gravity among the sludge inside the flocculation tank is stored in the flocculation sludge storage tank and then continuously maintained by its own gravity. Since it can be supplied to the dehydrator, it is possible to effectively coagulate the sucked sludge while using a minimum flocculant, and to continuously supply the coagulated sludge to the dehydrator without a separate indentation pump.

The inside of the coagulation tank is divided into a reaction chamber and a sludge supply chamber having a volume smaller than that of the reaction chamber by a partition having an open lower portion, and a sludge to be treated is introduced from the upper portion of the sludge supply chamber, through an opening of the partition wall. It is desirable to be fed to the bottom.

On the other hand, according to another feature of the invention, the dewatering means, the frame; An outer cylinder screen rotatably installed on the frame to separate the water in the coagulated sludge introduced therein by centrifugal force during rotation; It is rotatably installed to penetrate through the center of the outer cylinder screen, is formed in a hollow, a plurality of flocculating sludge supply holes are formed through the inside and the outside of the hollow portion, the flocculation sludge supplied into the hollow portion is the flocculation sludge A rotating shaft which feeds into the outer cylinder screen through a supply hole; An outer cylinder screen driving means for rotating the outer cylinder screen; Rotary shaft drive means for driving the rotary shaft differently from the outer cylinder screen; Spirally disposed along the outer circumferential length direction of the rotary shaft and rotated integrally with the rotary shaft, the outer circumferential surface is installed to be in close contact with the inner circumferential surface of the outer cylinder screen, while conveying the cohesive sludge supplied inside the outer cylinder screen forward, A screw blade for scraping and transporting the dewatered sludge attached to the inner wall of the outer cylinder screen by a relative rotational movement with the outer cylinder screen; It is fixed on the frame to surround the outer cylinder screen so that the dehydration liquid discharged through the outer cylinder screen is not scattered, the dehydration liquid outlet is formed in the lower center, the rear opening of the outer cylinder screen at the rear lower portion And a collection cover having a dewatering sludge outlet for discharging dewatered sludge removed from the bar.

According to the characteristics of the present invention, since the water in the flocculating sludge supplied to the hollow shaft of the rotary shaft from the flocculating sludge reservoir by its own weight is discharged to the outside of the outer cylinder screen by the centrifugal force due to the rotation of the outer cylinder screen, it can be manufactured in a small size and light weight. Excellent dehydration effect can be obtained, and the eyelid phenomenon of the outer cylinder screen is not only resolved by centrifugal force itself, but also the screw blade that is in close contact with the inner wall of the outer cylinder screen and rotates at a speed different from that of the outer cylinder screen for forward conveying action of the flocculating sludge. In addition, since the dehydration sludge attached to the inner wall is scraped and transported, the dehydration operation can be continuously performed without cleaning the screen during the operation.

The agglomeration tank and the agglomeration sludge storage tank are installed at a relatively high position of an upper portion of the agglomeration liquid storage tank, the dewatering means is installed at the bottom of the vehicle loading box, and the agglomeration sludge discharge pipe of the agglomeration sludge storage tank is a hollow part of the rotating shaft. It extends concentrically to the inside, so that the coagulated sludge discharged from the coagulated sludge discharge pipe is preferably supplied into the rotating shaft by its own weight, and unlike the screw press for dewatering the sludge by screw blades, the screw of the present invention Since the wing has a function of transporting and scraping off the sludge adhered to the inner wall, it is preferable to form a plurality of pieces without being integrally formed with the whole screw blades, and to couple them to the central axis. Urethane or Teflon rubber having a certain elasticity Or to make it with synthetic resin desirable.

According to the manufacturing test results of the dehydration vehicle system of the present invention, it was confirmed that the sludge supplied while not fully agglomerated among the agglomerated sludge supplied to the outer cylinder screen was discharged to the outside of the outer cylinder screen with moisture.

In order to prevent this, it is preferable to install a filtering net for filtering the water in the sludge discharged by its own weight in the flocculating sludge discharge pipe, and to install a bypass pipe for discharging the filtered water to the lower part of the filtering net. It is preferable to provide at least one sealing member between the sludge discharge pipe and the rotary shaft to prevent odor emission.

As described above, the dewatered sludge discharged from the discharge portion of the dehydrator is transported to the final treatment place and treated. According to another feature of the present invention, the dewatered sludge is extended to the dewatered sludge transport vehicle under the dewatered sludge discharge port and discharged. A dewatering sludge discharge tube is installed to allow sludge to be loaded into the dewatered sludge conveying vehicle. An opening means opposite to the discharge side opening of the dewatered sludge discharge tube is provided with a conveying means for feeding the dewatered sludge inside the discharge tube to the discharge side opening side. In order to prevent the dewatered sludge from flowing back to the dewatered sludge outlet by the pressure of the feed means, the dewatered sludge outlet closes the dewatered sludge outlet so that the dewatered sludge does not flow back to the dewatered sludge outlet during the operation of the feed means. And the conveying means do not operate. Bar is characterized in that the non-return check valve for opening the dewatered sludge discharge port is installed,

According to this aspect of the invention, it is possible to quickly and easily load the dewatered sludge in the cake state discharged from the dehydrator to the transport vehicle without a separate loading operation.

Compression means may be a compressed air generating means or a pneumatic or hydraulic cylinder that is periodically turned on and off, and in the case of using a cylinder, the reverse prevention check in the dewatered sludge discharge pipe so that the sludge is not reversed by the negative pressure when the piston is retracted It is desirable to install a valve.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing the overall configuration of the dehydration vehicle system according to an embodiment of the present invention, Figures 3 and 4 are a plan view and a side view of the dehydration vehicle system showing the arrangement of the main components, respectively, the present invention The condensation means is provided by aggregating means for aggregating suction sludge and pretreatment so as to be dewatered, and dewatering means for dewatering the agglomerated sludge to a cake state.

The flocculating means (1) is provided with a flocculant storage tank (11) containing a flocculant which reacts with sludge and flocculates the flocculant, a flocculant stored in the flocculant storage tank (11) and water for diluting it from the outside, The flocculant dilution tank 12 in which the stirring blade 12a which distributes the coagulant | flocculation agent and distributes evenly in water without stirring by water is provided, and the solenoid valve 12b is installed in the lower part of the flocculant dilution tank 12. When the solenoid valve is opened, the flocculation liquid storage tank 13 in which the flocculation liquid diluted in the flocculant dilution tank is discharged and stored by its own weight, and the treated sludge and the flocculation liquid storage tank 13 sucked from the storage tank 31 are stored. The flocculation liquid stored in the agglomerate pump (32) and the flocculation liquid pump (13a) are respectively introduced, and the flocculation tank (14) is provided with a stirring blade (14a) for stirring the flocculation liquid and the sludge evenly. Wow It is installed on the side of the collecting tank 14, the specific gravity is low and coupled to the upper part of the flocculation tank and the flocculation sludge conveying pipe 14b so that the flocculation sludge floating on the flocculation tank overflow due to buoyancy can be stored. And agglomerated sludge storage tank (15) in which agglomerated sludge discharge pipe (15a) is formed at a predetermined distance lower than the agglomerated sludge transport pipe (14b) so that the stored agglomerated sludge is discharged and supplied to the dewatering means (2). It consists of.

The inside of the coagulation tank 14 is divided into the reaction chamber 14c and the sludge supply chamber 14d of a relatively small volume compared with the reaction chamber by the partition 14e which the lower part opened, and the sludge to be processed is the sludge supply chamber. By being fed from the top and supplied from the bottom of the coagulation tank through the opening of the partition wall, the top of the coagulation tank is formed so that it can be supplied without mixing with the flocculated sludge, which is also supplied from the coagulant storage tank 13. 14) It is desirable to be fed from the bottom.

In the present embodiment, the coagulation tank 14 and the coagulation sludge storage tank 15 are installed in separate cylinders and connected by coagulation sludge conveying pipes 14b, but both are configured as one cylinder and coagulation between them. It is also possible to provide a partition having a height corresponding to the sludge feed pipe 14b.

As described above, the coagulated sludge stored in the coagulated sludge storage tank is supplied to the dewatering means 1 by its own weight through the coagulated sludge discharge pipe 15a. According to the manufacturing test results of the dehydration vehicle system of the present invention, Among the coagulated sludge supplied to the screen, it was confirmed that the sludge supplied while not fully agglomerated and contained a lot of water was discharged to the outside of the outer cylinder screen together with the water.

FIG. 5 is a view showing an embodiment in which a filtering net is installed in an agglomeration sludge discharge pipe in order to prevent this, and a filtering net 15b for filtering water in the sludge discharged by its own weight is installed in the lower part of the agglomeration sludge discharge pipe 15a. In the lower part of the filtering network, a bypass pipe 15c for discharging the filtered water to the outside is installed, and the water in the sludge passing through the coagulated sludge discharge pipe 15a is first separated by its own weight and then dewatering means (1). One embodiment to be able to supply to is shown.

The dewatering means 2 includes a frame 21, an outer cylinder screen 22 rotatably provided on the frame 1, and separating the moisture in the coagulated sludge introduced therein by centrifugal force during rotation, and an outer cylinder screen ( 22) rotatably installed to penetrate through the center, and formed in a hollow shape, and a plurality of flocculating sludge supply holes 23a penetrating the inside and outside of the hollow part are formed, so that the flocculating sludge supplied into the hollow part is formed. The rotating shaft 23 for supplying the inside of the outer cylinder screen 22 through the agglomeration sludge supply hole 23a, and is spirally disposed along the outer circumferential length direction of the rotating shaft 23 and rotated integrally with the rotating shaft, the outer circumferential surface of the outer cylinder screen It is installed in close contact with the inner circumferential surface of 22 to transfer the coagulated sludge supplied inside the outer cylinder screen to the front, and dewatering attached to the inner wall of the outer cylinder screen by relative rotational movement with the outer cylinder screen. Screw vane 24 to scrape the rug and transport it forward, and fixedly installed on the frame 21 to surround the outer cylinder screen 22, so that the dehydration liquid discharged through the outer cylinder screen is not scattered, dehydration in the lower center The liquid discharge port 25a is formed, and the lower part is comprised by the collection cover 25 in which the dehydration sludge discharge port 25b which discharges the dewatered sludge which falls out from the rear opening part of the outer cylinder screen is formed. Agglomerated sludge discharge pipe (15a) for supplying agglomerated sludge to the dewatering means 1 is configured to extend to the inside of the rotary shaft 23, preventing the discharge of odor between the coagulated sludge discharge pipe (15a) and the rotary shaft (23). It is preferable to provide at least one sealing member 23b, such as a mechanical seal or a gland packing.

The rotary shaft 23 and the outer cylinder screen 22 are driven at different rotational speeds. For this purpose, the rotary shaft 23 and the outer cylinder screen 22 may be driven by using separate driving motors. The shaft 26b is rotated, and the sprockets 26c and 26d are installed on each of the rotating shaft 23 and the outer cylinder screen 22 to be coupled to the sprocket of the intermediate shaft via a chain, and the diameter of the rotating shaft sprocket 26c is relatively. An embodiment in which the rotating shaft 23 is rotationally driven at a higher speed than the outer cylinder screen 22 is shown by forming small.

As described above, the screw blade 24 is rotated integrally with the rotating shaft, the outer circumferential surface is installed in close contact with the inner circumferential surface of the outer cylinder screen, and conveys the cohesive sludge supplied inside the outer cylinder screen, and at the same time, and the outer cylinder screen By scraping the dewatered sludge attached to the inner wall of the outer cylinder screen by a relative rotational movement of the transfer to the front, in the present embodiment, the screw blade of the present invention is shown integrally formed, but the screw blade of the present invention Unlike the screw press which dewaters the sludge by pressing the screw blade, the feeding and scraping of the sludge adhered to the inner wall is performed, and thus, the central shaft is formed by forming a plurality of screw blades without having to integrally form the whole screw blade. It is also possible to combine in an inclined manner, and due to the centrifugal force caused by the rotation of the outer cylinder screen Since most of the flocculating sludge is conveyed in close contact with the wall of the outer cylinder screen, it is possible to combine the plurality of rods at a predetermined distance from the rotating shaft, and to combine the plurality of components constituting the screw blades with the rods. The furnace is preferably made of urethane, Teflon rubber or synthetic resin having some elasticity.

The dewatered sludge discharged from the discharge part of the dehydrator is transported to the final treatment place for treatment. FIG. 6 shows a dewatering sludge conveying means installed in the dewatering sludge discharge tube, so that the dewatered sludge in the cake state discharged from the dehydrator is separately loaded. One embodiment is shown so that it can be quickly and easily loaded into a transport vehicle without a load.

A dewatering sludge discharge tube 25c is provided below the dewatered sludge discharge port 25b, and a pressure feeding means 27 for feeding the dewatered sludge inside the discharge tube to the discharge side opening side is provided at an opening opposite the discharge side opening of the dewatered sludge discharge tube. The dewatering sludge outlet is installed at the dewatering sludge outlet so that the dewatering sludge does not flow back to the dewatering sludge outlet during operation of the feeding means. A check valve 25d for preventing the closing and opening of the dewatered sludge discharge port is provided while the pressure feeding means is not operated.

The pressurizing means may be a compressed air generating means periodically turned on or off, or a pneumatic or hydraulic cylinder may be used. FIG. 6 shows an embodiment using a pneumatic cylinder as the pressurizing means.

The opening on the opposite side of the discharge side opening of the dewatered sludge discharge tube 25c is composed of an elastic bellows 27a for sealing it and a reciprocating cylinder 27b for extending / contracting the bellows, and inside the dewatered sludge discharge tube 25c, the reciprocating cylinder The piston 27c of (27b) is opened and the anti-return check valve (25e) is provided to close the conduit so that the dewatered sludge inside the dewatered sludge discharge pipe is not reversed when the piston of the reciprocating cylinder is reversed. As shown in Fig. 6A, when the piston of the reciprocating cylinder is reversed, the non-return check valve 25d is opened and the anti-return check valve 25e is closed so that the dewatered sludge is discharged into the dewatered sludge discharge pipe 25c. When the piston is advanced in the reciprocating cylinder, as shown in Fig. 6B, the non-return check valve 25d is closed and the anti-retraction check valve 25e is opened to dehydrate the chain. If the discharge pipe (25c) is inside of the sludge it is pressure-feeding pressure in a forward direction.

Reference numerals 16a to 16d denote drain pipes, 33 denotes a septic tank, and 34 denote control panels.

According to the present invention configured as described above, the appropriate amount of the coagulant stored in the coagulant storage tank 11 to the coagulant dilution tank 12 through the metering pump 11b and at the same time through the raw water supply pump 11c from the outside After supplying water, the mixture was stirred for 30-40 minutes in the flocculant dilution tank 12, and the flocculant liquid completely diluted in water was stored in the flocculation liquid storage tank 13 by opening the solenoid valve 12b. In accordance with the progress of dehydration, the appropriate amount of dilution flocculation liquid is supplied to the flocculation tank 14 together with the treated sludge pumped from the storage tank 31 at any time. After the flocculation sludge floated in the flocculation sludge reservoir 15 overflows and is stored, it is installed to extend into the rotating shaft 23 so that it is continuously dehydrated by its own gravity through the flocculation sludge discharge pipe 15a. In the process, the water in the flocculating sludge is first separated through the filter net 15b installed in the flocculating sludge discharge pipe 15a and is discharged through the bypass pipe 15c.

In this way, the flocculating sludge supplied into the hollow part of the dehydrator rotating shaft 23 is supplied into the outer cylinder screen 22 through the flocculating sludge supply hole 23a, and only water is supplied by the centrifugal force due to the rotation of the outer cylinder screen. It is separated through the screen and sent to the collection place such as the septic tank 33 through the dehydration outlet 25a at the bottom of the collecting cover 25, and is attached to the inner wall of the outer cylinder screen 22 in a state where water is separated by centrifugal force. The dewatered sludge is conveyed forward by the screw vanes 24 which rotate at a relatively high speed relative to the outer cylinder screen and discharged through the dewatered sludge outlet 25b at the lower rear portion of the collecting cover 25, and then to the conveying means 27. It is loaded on the transport vehicle and transported to the final processing place for processing.

According to the dewatering vehicle system according to the present invention as described above, it is possible to manufacture inexpensive compact and lightweight, and can process the whole process of coagulation and dehydration from suction of sludge as quickly and continuously as possible, and the minimum amount of flocculant It is possible to supply the sludge sludge discharged from the dehydrator to the dehydration means continuously by effectively flocculating the sludge suctioned while using it, and also to quickly and easily load the dewatered sludge of the cake state discharged from the dehydrator into the transport vehicle effectively. At the same time, it is possible to minimize the maintenance cost of the vehicle and the processing cost due to dehydration.

Claims (9)

In a dewatering vehicle system comprising a flocculating means for flocculating suctioned sludge and a dehydrating means for dewatering the flocculated sludge, the flocculation means system for dehydrating the sludge collectively at each site, A flocculant reservoir containing a flocculant which reacts with and coagulates sludge; A flocculant dilution tank provided with a flocculant stored in the flocculant storage tank and water for diluting the coagulant, and provided with a stirring blade to stir the flocculant and the water so that the flocculant is uniformly distributed in water without solidifying; An agglomeration liquid storage tank installed at a lower portion of the coagulant dilution tank via a solenoid valve, wherein the agglomeration liquid diluted in the coagulant dilution tank is discharged and stored by its own weight when the solenoid valve is opened; A flocculation tank in which the sludge to be treated and the flocculation liquid stored in the flocculation liquid storage tank are respectively introduced by a sludge pump and a flocculation pump, and are provided with a stirring blade to stir the flocculation liquid and the sludge evenly; It is installed on the side of the coagulation tank, the specific gravity is low and coupled with the coagulation tank so that the flocculation sludge floating on the coagulation tank upper portion by buoyancy can be stored, the stored coagulation sludge is discharged to the dewatering means And a coagulated sludge storage tank in which coagulated sludge discharge pipes are formed at a predetermined distance lower than the coagulated sludge conveying pipe so as to be supplied to the coagulated sludge transport pipe. The agglomeration tank and the agglomeration sludge storage tank are installed at an upper portion of the agglomeration liquid storage tank, the dehydration means is installed at the bottom of the vehicle loading box, and the agglomeration sludge discharge pipe of the agglomeration sludge storage tank is concentrically to the inside of the hollow part of the rotating shaft. It is extended, the coagulated sludge discharged from the coagulated sludge discharge pipe is supplied into the rotating shaft by its own weight, The agglomeration sludge discharge pipe is provided with a filtering network for filtering the water in the discharge sludge, the lower portion of the filter network, characterized in that the bypass pipe for discharging the filtered water to the outside is installed. The method of claim 1, wherein the inside of the coagulation tank is divided into a reaction chamber and a sludge supply chamber having a relatively small volume compared to the reaction chamber by a partition having an open lower portion, and the sludge to be treated is introduced from an upper portion of the sludge supply chamber. Dewatering vehicle system, characterized in that. The method of claim 1 or 2, wherein the dewatering means, A frame; An outer cylinder screen rotatably installed on the frame to separate the water in the coagulated sludge introduced therein by centrifugal force during rotation; It is rotatably installed to penetrate through the center of the outer cylinder screen, is formed in a hollow, a plurality of flocculating sludge supply holes are formed through the inside and the outside of the hollow portion, the flocculation sludge supplied into the hollow portion is the flocculation sludge A rotating shaft which feeds into the outer cylinder screen through a supply hole; An outer cylinder screen driving means for rotating the outer cylinder screen; Rotary shaft drive means for driving the rotary shaft differently from the outer cylinder screen; Spirally disposed along the outer circumferential length direction of the rotary shaft and rotated integrally with the rotary shaft, the outer circumferential surface is installed to be in close contact with the inner circumferential surface of the outer cylinder screen, while conveying the cohesive sludge supplied inside the outer cylinder screen forward, A screw blade for scraping and transporting the dewatered sludge attached to the inner wall of the outer cylinder screen by a relative rotational movement with the outer cylinder screen; It is fixed on the frame to surround the outer cylinder screen so that the dehydration liquid discharged through the outer cylinder screen is not scattered, the dehydration liquid outlet is formed in the lower center, the rear opening of the outer cylinder screen at the rear lower portion And a collection cover having a dewatered sludge outlet for discharging dewatered sludge that is removed from the dewatered sludge. delete delete delete In the dehydration vehicle system comprising a flocculation means for agglomeration of the sludge suctioned and a dehydration means for dewatering the agglomerated sludge, the dewatering means system for dewatering the sludge collectively at each site, wherein the dewatering means comprises: A frame; An outer cylinder screen rotatably installed on the frame to separate the water in the coagulated sludge introduced therein by centrifugal force during rotation; It is rotatably installed to penetrate through the center of the outer cylinder screen, is formed in a hollow, a plurality of flocculating sludge supply holes are formed through the inside and the outside of the hollow portion, the flocculation sludge supplied into the hollow portion is the flocculation sludge A rotating shaft which feeds into the outer cylinder screen through a supply hole; An outer cylinder screen driving means for rotating the outer cylinder screen; Rotary shaft drive means for driving the rotary shaft differently from the outer cylinder screen; Spirally disposed along the outer circumferential length direction of the rotary shaft and rotated integrally with the rotary shaft, the outer circumferential surface is installed to be in close contact with the inner circumferential surface of the outer cylinder screen, while conveying the cohesive sludge supplied inside the outer cylinder screen forward, A screw blade for scraping and transporting the dewatered sludge attached to the inner wall of the outer cylinder screen by a relative rotational movement with the outer cylinder screen; It is fixed on the frame to surround the outer cylinder screen so that the dehydration liquid discharged through the outer cylinder screen is not scattered, the dehydration liquid outlet is formed in the lower center, the rear opening of the outer cylinder screen at the rear lower portion And a collecting cover having a dewatering sludge outlet for discharging dewatered sludge removed from the In the lower portion of the dewatering sludge discharge port, a dewatering sludge discharge tube is provided which extends to a separate dewatering sludge transporting vehicle so that the discharged dewatering sludge can be loaded into the dewatering sludge transporting vehicle, and the discharge side of the dewatering sludge discharge pipe is provided. An opening opposite to the opening is provided with a feeding means for feeding the dewatering sludge inside the discharge pipe to the discharge-side opening, and the dewatering sludge outlet has the dewatering sludge outlet so that the dewatering sludge does not flow back to the dewatering sludge outlet during operation of the feeding means. And a non-return check valve for closing the dewatering sludge outlet while the pumping means is closed. delete 8. The pressure-receiving means according to claim 7, wherein the pressure feeding means comprises an elastic bellows for sealing an opening on the opposite side of the discharge side opening of the dewatering sludge discharge tube, and a reciprocating cylinder for extending / contracting the bellows. A dehydration vehicle system, characterized in that a reverse prevention check valve is installed to open the cylinder when the piston is advanced and to close the pipeline so that the dehydration sludge inside the dehydration sludge discharge pipe does not retreat when the piston is retracted.

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