CN108480363B - A water conservancy engineering device for river dredging - Google Patents

Abstract

The invention relates to a hydraulic engineering device for dredging a river channel, which comprises a crushing cavity, a stone removing device, a conveying chamber, a centrifugal separation chamber, a first mixing chamber, a first filtering chamber, a second mixing chamber and a second filtering chamber. Through setting up specific construction and with broken chamber complex remove the stone device for simple can get rid of the stone in the silt, remove used water of silt through the setting then and carry out recovery processing, realized the environment innocent treatment of silt.

Description

A water conservancy engineering device for river dredging

technical field

The invention belongs to the field of water conservancy engineering equipment, in particular to a water conservancy engineering device for dredging a river.

Background technique

In water conservancy projects, it is often necessary to clean up the silt in the river channel. The current cleaning device mainly uses small machinery to cooperate with other machinery to work together, and it is transported after being sucked by a suction pump. However, since this implementation requires the simultaneous cooperation of multiple mechanical equipment, the cost between links is virtually increased, and because the river silt has a certain adsorption effect on harmful pollutant elements such as heavy metals in the water body for a long time, it will be long-term in the river silt. There are harmful elements such as heavy metals. If they are simply transported and placed, after rainfall or snowfall, these harmful elements such as heavy metals will re-enter the water body of the groundwater, and the stacked sludge will easily cause secondary pollution to the environment. At the same time, because the river silt is basically mixed with hard block solids such as stones, when the silt is further processed, the existence of these hard block solids will cause great damage to the subsequent processing equipment. The stratified filtration method removes the stones, but because the sludge is easy to form a certain secondary silt during the treatment process, it is easy to cause the low separation effect of the two in many cases. High viscosity is easy to cause clogging of the filter equipment, which further deteriorates the separation effect of the two.

SUMMARY OF THE INVENTION

The present invention proposes a water conservancy engineering device for river dredging.

This is achieved through the following technical means:

The utility model relates to a water conservancy engineering device for river dredging, comprising a crushing chamber, a stone removing device, a conveying chamber, a centrifugal separation chamber, a first mixing chamber, a first filtering chamber, a second mixing chamber and a second filtering chamber.

The crushing cavity includes a crushing cavity shell, a suction mud pump, a high-pressure nozzle, a crushing cavity inlet, a crushing shaft, a crushing knife, a stirring chamber, an upper stirring shaft and an outlet of the crushing cavity; the suction mud pump is arranged on the outer top of the crushing cavity shell, It is communicated with the crushing cavity inlet arranged on the top of the crushing cavity shell. The suction mud pump is used to suck the silt in the river channel into the crushing cavity through the crushing cavity entrance. A plurality of high-pressure nozzles are arranged on the side wall of the cavity, and the high-pressure nozzles disperse the sludge by means of high-pressure water jets. There is a helical crushing knife, a stirring chamber is arranged at the terminal end of the crushing shaft, an upper stirring shaft is vertically arranged in the center of the top of the stirring chamber, and a crushing cavity outlet is arranged directly below the upper stirring shaft, and the crushing cavity is The outlet is formed in an arc downward from the edge of the stirring chamber.

The stone removal device is arranged directly below the outlet of the crushing chamber, and includes a stone removal device shell, a left roller part, a right roller part and a distribution groove; the left roller part and the right roller part are arranged in the stone removal device. Inside the shell, the distribution groove is arranged in the shape of a square funnel, and the bottom of the distribution groove runs through the bottom of the shell of the stone removal device and protrudes from the bottom of the shell of the stone removal device; the left roller part includes a left roller, a left roller shaft, Left chute and spring; the left roller rotates with the left roller shaft as the axis, the left roller is laterally arranged and includes the left roller shaft and the spring, and one end of the spring is connected to the left side of the left roller The other end is connected with the left roller shaft, the left top of the distribution groove is fixedly connected with the left roller shaft, and the right roller part includes a right roller, a right roller shaft, a right chute and a slider ; The right roller rotates with the right roller shaft as the axis, and is provided with a right chute on the left, and a slider is arranged in the right chute, and the right top of the distribution groove is fixedly connected with the slider, The left and right movement of the distribution groove is realized by the left and right movement of the left roller shaft; the left and right rollers are arranged in a horizontal axis shape, and the junction of the left and right rollers is located just below the outlet of the crushing chamber.

The transfer chamber includes a transfer chamber shell, a stone conveyor belt, a silt conveyor belt, an inclined baffle, a stone block deflector, a silt deflector, a transfer chamber water outlet and a stone block storage box; the stone block conveyor belt and the silt conveyor belt are It is arranged inside the casing of the conveying chamber from top to bottom in sequence, the right end of the stone conveying belt is located just below the leftmost end to which the distribution trough can move, and the left end is connected with the stone deflector, and the stone guide The flow plate is inclined downward, and the terminal end of the stone deflector is arranged in the stone storage box, and the stone storage box is used to store the stones conveyed from the stone conveying belt; the silt conveying belt The right end is located just below the rightmost end to which the distribution trough can move, and the left end is connected to the silt deflector; the stone conveyor belt and the silt conveyor belt are both conveyed from right to left, and the stone conveyor belt Both the rightmost end of the sludge conveyor belt and the rightmost end of the sludge conveyor belt are provided with inclined baffle plates upward; and the bottom of the conveyor chamber shell under the sludge conveyor belt is provided with a conveyor chamber water outlet.

The centrifugal separation chamber includes a separation inner barrel, a separation outer barrel, a rotating shaft, a separation solid outlet, a separation liquid outlet, and a sludge storage tank; the separation outer barrel is a hollow drum structure, and a separation inner barrel is coaxially arranged in the inner barrel. The separation inner barrel is divided into a lower main structure and an upper additional structure, the lower main structure is a funnel-shaped structure, and the upper additional structure is an inverted funnel-shaped structure. The structure accommodates the lower end of the silt deflector therein, so that almost all of the silt derived from the silt deflector can enter the separation inner barrel, and the rotating shaft is arranged at the axial center of the separation inner barrel and the separation outer barrel, And make the separation inner barrel rotate at a high speed with the rotating shaft as the axis, the separation solids outlet is arranged in the center of the bottom of the separation inner barrel, a sludge storage tank is connected through a pipeline below the separation solids outlet, and the separation liquid outlet is arranged at the bottom of the separation inner barrel. The bottom of the side wall of the separation outer tub is described.

The first mixing chamber includes a first mixing chamber shell, a first mixing chamber inlet, a first stirring shaft, a first dosing port and a first mixing chamber outlet; the first mixing chamber inlet is arranged on the first mixing chamber shell The top is connected with the water outlet of the transfer chamber, a first stirring shaft is vertically arranged on the top of the first mixing chamber shell, and a first dosing port is also set on the top of the first mixing chamber shell. A first mixing chamber outlet is arranged in the center of the bottom of the chamber shell. The first dosing port is used for adding alkaline substances such as calcium hydroxide or calcium oxide.

The first filter chamber includes a first filter chamber shell, a first filter chamber inlet, a first filter chamber water outlet, a first inclined filter plate and a sundries storage box; the first filter chamber inlet is arranged in the first filter chamber The top of the shell is connected to the outlet of the first mixing chamber, a first inclined filter plate is inclined inside the shell of the first filter chamber, and the right end of the first inclined filter plate is arranged directly below the inlet of the first filter chamber , the left end is fixedly connected with the left side of the first filter chamber shell, and an opening is provided at the upper end of the junction, and a sundries storage box is provided on the outside of the first filter chamber shell at the junction with the first inclined filter plate. The sundries storage box is used to receive and store the solid matter on the upper part of the first inclined filter plate, and the water outlet of the first filter chamber is arranged at the bottom of the shell of the first filter chamber.

The second mixing chamber includes a second mixing chamber shell, a second mixing chamber inlet, a second stirring shaft, a second dosing port and a second mixing chamber outlet; the second mixing chamber inlet is arranged on the second mixing chamber shell The top of the second mixing chamber is connected with the water outlet of the first filter chamber. A second stirring shaft is vertically arranged on the top of the second mixing chamber shell. The center of the bottom of the shell of the second mixing chamber is provided with an outlet of the second mixing chamber. The second dosing port is used for blowing carbon dioxide gas into it or directly adding carbonic acid into it.

The second filter chamber includes a second filter chamber shell, a second filter chamber inlet, a filtered water outlet, a second inclined filter plate, activated carbon particles and a calcium carbonate storage tank; the second filter chamber inlet is provided in the second filter chamber The top of the shell is connected with the outlet of the second mixing chamber, a second inclined filter plate is inclined inside the second filter chamber shell, and the right end of the second inclined filter plate is arranged directly below the entrance of the second filter chamber , the left end is fixedly connected with the left side of the second filter chamber shell and the upper end of the connection is provided with an opening, and a calcium carbonate storage box is arranged on the outside of the second filter chamber shell at the connection with the second inclined filter plate, so The calcium carbonate storage tank is used to receive and store the solid matter on the upper part of the second inclined filter plate. The inside of the second filter chamber shell below the second filter plate is filled with activated carbon particles, and the filtered water outlet It is arranged at the bottom of the second filter chamber shell.

Preferably, the distribution trough is provided in the shape of a square funnel that is open up and down (that is, a hollow inverted cube structure with open top and bottom surfaces).

Preferably, both ends of the side wall of the distribution groove in contact with the left roller and the right roller are respectively fixed with the left roller shaft and the slider, and the center is recessed downward and matched with the contact parts of the left roller and the right roller. Form a U-shaped groove.

Preferably, the top of the stirring chamber of the crushing chamber is provided with an upper dosing port. The upper dosing port is used to add acid substances into the stirring chamber.

Preferably, the stone conveyor belt and the silt conveyor belt are arranged in the form of a left high and right low inclination, and the inclination angle is 0.5~2︒.

Preferably, the surfaces of the left rolling roll and the right rolling roll are roughened cemented carbide.

Preferably, the surfaces of the left roller and the right roller are provided with square protruding blocks that mesh with each other relatively.

Preferably, the surfaces of the left rolling roll and the right rolling roll are both roughened wear-resistant steel.

Preferably, the stone conveyor belt and the sludge conveyor belt are provided with a plurality of upper and lower through holes. And the through holes are all through holes with an inner diameter of less than 2 mm.

The effect of the present invention is:

1. By setting the left roller to move left and right, when the left roller moves to the left, it means that there is a large piece of hard material between the left and right rollers. Since the sludge has been broken, even if it agglomerates It will be hard, so it must be a stone, and a funnel-shaped distribution groove is set below it. By setting the left and right positions of the beginning of the conveyor belt below it, the efficient and simple distribution of stones and silt is realized. The low-quality situation of the existing distribution method is avoided.

Due to the spring in the distribution process, not only can rebound be achieved, but at the same time, due to the pressure generated by it, the material entering the left and right rollers is squeezed to avoid the temporarily agglomerated sludge being mistakenly removed as stones, ensuring that The purity of the stone.

Since the left rolling roller is provided with a high-strength spring, in addition to the function of distributing stones, it also has the function of further rolling and crushing the sludge.

2. By integrating mud suction, crushing, stone separation, and liquid-solid separation into a whole device, the intermediate links formed by different equipment and construction machinery are avoided, thus avoiding the increase of the cost of intermediate links.

3. By spraying high-pressure water on the sludge that has just entered the crushing chamber, the sludge is dispersed in advance, which not only disperses the agglomerated sludge (pre-disintegration operation for the heavily agglomerated sludge), but also disperses the agglomerated sludge. Sludge adhering to the stones is washed away from the stones, thereby optimizing the subsequent process. After crushing, the water is firstly separated on the conveyor belt, and the liquid flows down into the shell through the through holes on the conveyor belt during the conveying process to realize the first separation of liquid and solid. Secondary separation is performed by high-speed centrifugal rotation in the separation chamber. Dosing the used water for many times (the heavy metal in the sludge is dissolved into the water when the first dosing is added, and it is precipitated from the water when the drug is added again, and the third dosing will enter the water during the process. The acid and alkali substances are uniformly formed into precipitation and removed), combined with the adsorption of activated carbon, the impurities and harmful elements in the water are removed, so that no secondary pollution is caused to the treated water body during the treatment process.

The separation process adopts high-speed centrifugal separation, and adopts the shape setting of the upper size and the lower size, which can achieve high-efficiency separation with small through holes, and also avoid the blockage of the through holes during the filtration process.

Description of drawings

FIG. 1 is a schematic structural diagram of a water conservancy engineering device for river dredging according to the present invention.

Among them: 11-suction pump, 12-high pressure nozzle, 13-crushing chamber inlet, 14-crushing shaft, 15-crushing knife, 16-mixing chamber, 17-upper mixing shaft, 18-crushing chamber outlet, 21-left grinding Roller, 22-right roller, 23-roller shaft, 24-left chute, 25-spring, 26-right chute, 27-slider, 28-distribution chute, 31-stone conveyor belt, 32-silt conveyor belt , 33- Oblique baffle, 34- Stone deflector, 35- Sludge deflector, 36- Outlet of transfer chamber, 4- Stone storage box, 51- Separate inner barrel, 52- Separate outer barrel, 53- Rotary shaft , 54-separated solid outlet, 55-silt storage tank, 6-first mixing chamber, 61-first stirring shaft, 62-first dosing port, 63-first mixing chamber outlet, 71-first inclined filter plate , 72 - sundries storage box, 8 - second mixing chamber, 81 - second stirring shaft, 82 - second dosing port, 83 - second mixing chamber outlet, 9 - second filter chamber, 91 - second tilt Filter plate, 92- activated carbon particles, 93- inlet of the second filter chamber, 94- outlet of filtered water, 95- calcium carbonate storage tank.

Detailed ways

Example 1

The utility model relates to a water conservancy engineering device for river dredging, comprising a crushing chamber, a stone removing device, a conveying chamber, a centrifugal separation chamber, a first mixing chamber, a first filtering chamber, a second mixing chamber and a second filtering chamber.

The crushing cavity includes a crushing cavity shell, a suction mud pump, a high-pressure nozzle, a crushing cavity inlet, a crushing shaft, a crushing knife, a stirring chamber, an upper stirring shaft and an outlet of the crushing cavity; the suction mud pump is arranged on the outer top of the crushing cavity shell, It is communicated with the crushing cavity inlet arranged on the top of the crushing cavity shell. The suction mud pump is used to suck the silt in the river channel into the crushing cavity through the crushing cavity entrance. Three high-pressure nozzles are arranged on the side wall of the cavity. The high-pressure nozzles disperse the sludge by spraying water at high pressure. A crushing shaft is laterally arranged on the right side of the cavity, and the crushing shaft is provided with 1 A screw-shaped crushing knife is arranged on the crushing shaft, a stirring chamber is arranged at the terminal end of the crushing shaft, an upper stirring shaft is vertically arranged in the center of the top of the stirring chamber, and an upper stirring shaft is arranged directly below the upper stirring shaft There is an outlet of the crushing chamber, and the outlet of the crushing chamber is formed in an arc downward from the edge of the stirring chamber.

The stone removal device is arranged directly below the outlet of the crushing chamber, and includes a stone removal device shell, a left roller part, a right roller part and a distribution groove; the left roller part and the right roller part are arranged in the stone removal device. Inside the shell, the distribution groove is arranged in the shape of a square funnel, and the bottom of the distribution groove runs through the bottom of the shell of the stone removal device and protrudes from the bottom of the shell of the stone removal device; the left roller part includes a left roller, a left roller shaft, Left chute and spring; the left roller rotates with the left roller shaft as the axis, the left roller is laterally arranged and includes the left roller shaft and the spring, and one end of the spring is connected to the left side of the left roller The other end is connected with the left roller shaft, the left top of the distribution groove is fixedly connected with the left roller shaft, and the right roller part includes a right roller, a right roller shaft, a right chute and a slider ; The right roller rotates with the right roller shaft as the axis, and is provided with a right chute on the left, and a slider is arranged in the right chute, and the right top of the distribution groove is fixedly connected with the slider, The left and right movement of the distribution groove is realized by the left and right movement of the left roller shaft; the left and right rollers are arranged in a horizontal axis shape, and the junction of the left and right rollers is located just below the outlet of the crushing chamber.

The transfer chamber includes a transfer chamber shell, a stone conveyor belt, a silt conveyor belt, an inclined baffle, a stone block deflector, a silt deflector, a transfer chamber water outlet and a stone block storage box; the stone block conveyor belt and the silt conveyor belt are It is arranged inside the casing of the conveying chamber from top to bottom in sequence, the right end of the stone conveying belt is located just below the leftmost end to which the distribution trough can move, and the left end is connected with the stone deflector, and the stone guide The flow plate is inclined downward, and the terminal end of the stone deflector is arranged in the stone storage box, and the stone storage box is used to store the stones conveyed from the stone conveying belt; the silt conveying belt The right end is located just below the rightmost end to which the distribution trough can move, and the left end is connected to the silt deflector; the stone conveyor belt and the silt conveyor belt are both conveyed from right to left, and the stone conveyor belt Both the rightmost end of the sludge conveyor belt and the rightmost end of the sludge conveyor belt are provided with inclined baffle plates upward; and the bottom of the conveyor chamber shell under the sludge conveyor belt is provided with a conveyor chamber water outlet.

Both the stone conveyor belt and the silt conveyor belt are provided with dense upper and lower through holes. And the through holes are all through holes with an inner diameter of less than 1.5 mm.

The centrifugal separation chamber includes a separation inner barrel, a separation outer barrel, a rotating shaft, a separation solid outlet, a separation liquid outlet, and a sludge storage tank; the separation outer barrel is a hollow drum structure, and a separation inner barrel is coaxially arranged in the inner barrel. The separation inner barrel is divided into a lower main structure and an upper additional structure, the lower main structure is a funnel-shaped structure, and the upper additional structure is an inverted funnel-shaped structure. The structure accommodates the lower end of the silt deflector therein, so that almost all of the silt derived from the silt deflector can enter the separation inner barrel, and the rotating shaft is arranged at the axial center of the separation inner barrel and the separation outer barrel, And make the separation inner barrel rotate at a high speed with the rotating shaft as the axis, the separation solids outlet is arranged in the center of the bottom of the separation inner barrel, a sludge storage tank is connected through a pipeline below the separation solids outlet, and the separation liquid outlet is arranged at the bottom of the separation inner barrel. The bottom of the side wall of the separation outer tub is described.

The first mixing chamber includes a first mixing chamber shell, a first mixing chamber inlet, a first stirring shaft, a first dosing port and a first mixing chamber outlet; the first mixing chamber inlet is arranged on the first mixing chamber shell The top is connected with the water outlet of the transfer chamber, a first stirring shaft is vertically arranged on the top of the first mixing chamber shell, and a first dosing port is also set on the top of the first mixing chamber shell. A first mixing chamber outlet is arranged in the center of the bottom of the chamber shell.

The first filter chamber includes a first filter chamber shell, a first filter chamber inlet, a first filter chamber water outlet, a first inclined filter plate and a sundries storage box; the first filter chamber inlet is arranged in the first filter chamber The top of the shell is connected to the outlet of the first mixing chamber, a first inclined filter plate is inclined inside the shell of the first filter chamber, and the right end of the first inclined filter plate is arranged directly below the inlet of the first filter chamber , the left end is fixedly connected with the left side of the first filter chamber shell, and an opening is provided at the upper end of the junction, and a sundries storage box is provided on the outside of the first filter chamber shell at the junction with the first inclined filter plate. The sundries storage box is used to receive and store the solid matter on the upper part of the first inclined filter plate, and the water outlet of the first filter chamber is arranged at the bottom of the shell of the first filter chamber.

The second mixing chamber includes a second mixing chamber shell, a second mixing chamber inlet, a second stirring shaft, a second dosing port and a second mixing chamber outlet; the second mixing chamber inlet is arranged on the second mixing chamber shell The top of the second mixing chamber is connected with the water outlet of the first filter chamber. A second stirring shaft is vertically arranged on the top of the second mixing chamber shell. The center of the bottom of the shell of the second mixing chamber is provided with an outlet of the second mixing chamber.

The second filter chamber includes a second filter chamber shell, a second filter chamber inlet, a filtered water outlet, a second inclined filter plate, activated carbon particles and a calcium carbonate storage tank; the second filter chamber inlet is provided in the second filter chamber The top of the shell is connected with the outlet of the second mixing chamber, a second inclined filter plate is inclined inside the second filter chamber shell, and the right end of the second inclined filter plate is arranged directly below the entrance of the second filter chamber , the left end is fixedly connected with the left side of the second filter chamber shell and the upper end of the connection is provided with an opening, and a calcium carbonate storage box is arranged on the outside of the second filter chamber shell at the connection with the second inclined filter plate, so The calcium carbonate storage tank is used to receive and store the solid matter on the upper part of the second inclined filter plate. The inside of the second filter chamber shell below the second filter plate is filled with activated carbon particles, and the filtered water outlet It is arranged at the bottom of the second filter chamber shell.

The distribution groove is set in the shape of a square funnel that is open up and down (that is, a hollow, inverted square table structure with open top and bottom surfaces), and the distribution groove is in contact with the left and right rollers. It is respectively fixed with the left roller shaft and the slider, and the center is recessed downward and is matched with the contact parts of the left roller and the right roller to form a U-shaped groove. Its side is provided with a downward depression to match with the left and right rollers, and a rubber plate is arranged on the recessed part matched with the right roller. It is confirmed that there will be no leakage on the side, but it has a relative displacement with the right roller. When moving to the left, the flexible rubber plate will pop up a part, thus avoiding the leakage of the right side. .

The top of the stirring chamber of the crushing chamber is provided with an upper dosing port. It is used to dissolve harmful elements such as heavy metals in sludge into water by adding hydrochloric acid.

Both the stone conveyor belt and the sludge conveyor belt are arranged horizontally.

The surfaces of the left and right rolls are both roughened cemented carbide.

Example 2

The utility model relates to a water conservancy engineering device for river dredging, comprising a crushing chamber, a stone removing device, a conveying chamber, a centrifugal separation chamber, a first mixing chamber, a first filtering chamber, a second mixing chamber and a second filtering chamber.

The crushing chamber includes a crushing chamber shell, a suction pump, a high-pressure nozzle, a crushing chamber inlet, a crushing shaft, a crushing knife, a stirring chamber, an upper stirring shaft and an outlet of the crushing chamber; the crushing shafts are two in series, and the suction The mud pump is arranged on the outer top of the crushing chamber shell and communicates with the crushing chamber inlet set on the top of the crushing chamber shell. There is a cavity directly below the cavity inlet, and 5 high-pressure nozzles are arranged on the side wall of the cavity. The high-pressure nozzles disperse the sludge by spraying water with high pressure. The crushing shaft is provided with a helical crushing knife, the terminal end of the crushing shaft is provided with a stirring chamber, and an upper stirring shaft is vertically arranged in the center of the top of the stirring chamber, just below the upper stirring shaft A crushing chamber outlet is provided, and the crushing chamber outlet is formed in an arc downward from the edge of the stirring chamber.

The stone removal device is arranged directly below the outlet of the crushing chamber, and includes a stone removal device shell, a left roller part, a right roller part and a distribution groove; the left roller part and the right roller part are arranged in the stone removal device. Inside the shell, the distribution groove is arranged in the shape of a square funnel, and the bottom of the distribution groove runs through the bottom of the shell of the stone removal device and protrudes from the bottom of the shell of the stone removal device; the left roller part includes a left roller, a left roller shaft, Left chute and spring; the left roller rotates with the left roller shaft as the axis, the left roller is laterally arranged and includes the left roller shaft and the spring, and one end of the spring is connected to the left side of the left roller The other end is connected with the left roller shaft, the left top of the distribution groove is fixedly connected with the left roller shaft, and the right roller part includes a right roller, a right roller shaft, a right chute and a slider ; The right roller rotates with the right roller shaft as the axis, and is provided with a right chute on the left, and a slider is arranged in the right chute, and the right top of the distribution groove is fixedly connected with the slider, The left and right movement of the distribution groove is realized by the left and right movement of the left roller shaft; the left and right rollers are arranged in a horizontal axis shape, and the junction of the left and right rollers is located just below the outlet of the crushing chamber.

The transfer chamber includes a transfer chamber shell, a stone conveyor belt, a silt conveyor belt, an inclined baffle, a stone block deflector, a silt deflector, a transfer chamber water outlet and a stone block storage box; the stone block conveyor belt and the silt conveyor belt are It is arranged inside the casing of the conveying chamber from top to bottom in sequence, the right end of the stone conveying belt is located just below the leftmost end to which the distribution trough can move, and the left end is connected with the stone deflector, and the stone guide The flow plate is inclined downward, and the terminal end of the stone deflector is arranged in the stone storage box, and the stone storage box is used to store the stones conveyed from the stone conveying belt; the silt conveying belt The right end is located just below the rightmost end to which the distribution trough can move, and the left end is connected to the silt deflector; the stone conveyor belt and the silt conveyor belt are both conveyed from right to left, and the stone conveyor belt Both the rightmost end of the sludge conveyor belt and the rightmost end of the sludge conveyor belt are provided with inclined baffle plates upward; and the bottom of the conveyor chamber shell under the sludge conveyor belt is provided with a conveyor chamber water outlet.

The centrifugal separation chamber includes a separation inner barrel, a separation outer barrel, a rotating shaft, a separation solid outlet, a separation liquid outlet, and a sludge storage tank; the separation outer barrel is a hollow drum structure, and a separation inner barrel is coaxially arranged in the inner barrel. The separation inner barrel is divided into a lower main structure and an upper additional structure, the lower main structure is a funnel-shaped structure, and the upper additional structure is an inverted funnel-shaped structure. The structure accommodates the lower end of the silt deflector therein, so that almost all of the silt derived from the silt deflector can enter the separation inner barrel, and the rotating shaft is arranged at the axial center of the separation inner barrel and the separation outer barrel, And make the separation inner barrel rotate at a high speed with the rotating shaft as the axis, the separation solids outlet is arranged in the center of the bottom of the separation inner barrel, a sludge storage tank is connected through a pipeline below the separation solids outlet, and the separation liquid outlet is arranged at the bottom of the separation inner barrel. The bottom of the side wall of the separate outer tub is described.

The first mixing chamber includes a first mixing chamber shell, a first mixing chamber inlet, a first stirring shaft, a first dosing port and a first mixing chamber outlet; the first mixing chamber inlet is arranged on the first mixing chamber shell The top is connected with the water outlet of the transfer chamber, a first stirring shaft is vertically arranged on the top of the first mixing chamber shell, and a first dosing port is also set on the top of the first mixing chamber shell. A first mixing chamber outlet is arranged in the center of the bottom of the chamber shell.

The first filter chamber includes a first filter chamber shell, a first filter chamber inlet, a first filter chamber water outlet, a first inclined filter plate and a sundries storage box; the first filter chamber inlet is arranged in the first filter chamber The top of the shell is connected to the outlet of the first mixing chamber, a first inclined filter plate is inclined inside the shell of the first filter chamber, and the right end of the first inclined filter plate is arranged directly below the inlet of the first filter chamber , the left end is fixedly connected with the left side of the first filter chamber shell, and an opening is provided at the upper end of the junction, and a sundries storage box is provided on the outside of the first filter chamber shell at the junction with the first inclined filter plate. The sundries storage box is used to receive and store the solid matter on the upper part of the first inclined filter plate, and the water outlet of the first filter chamber is arranged at the bottom of the shell of the first filter chamber.

The second mixing chamber includes a second mixing chamber shell, a second mixing chamber inlet, a second stirring shaft, a second dosing port and a second mixing chamber outlet; the second mixing chamber inlet is arranged on the second mixing chamber shell The top of the second mixing chamber is connected with the water outlet of the first filter chamber. A second stirring shaft is vertically arranged on the top of the second mixing chamber shell. The center of the bottom of the shell of the second mixing chamber is provided with an outlet of the second mixing chamber.

The second filter chamber includes a second filter chamber shell, a second filter chamber inlet, a filtered water outlet, a second inclined filter plate, activated carbon particles and a calcium carbonate storage tank; the second filter chamber inlet is provided in the second filter chamber The top of the shell is connected with the outlet of the second mixing chamber, a second inclined filter plate is inclined inside the second filter chamber shell, and the right end of the second inclined filter plate is arranged directly below the entrance of the second filter chamber , the left end is fixedly connected with the left side of the second filter chamber shell and the upper end of the connection is provided with an opening, and a calcium carbonate storage box is arranged on the outside of the second filter chamber shell at the connection with the second inclined filter plate, so The calcium carbonate storage tank is used to receive and store the solid matter on the upper part of the second inclined filter plate. The inside of the second filter chamber shell below the second filter plate is filled with activated carbon particles, and the filtered water outlet It is arranged at the bottom of the second filter chamber shell.

The distribution tank is set in the shape of a square funnel that is open up and down (that is, a hollow inverted square table structure with open top and bottom surfaces).

The two ends of the side wall of the distribution groove in contact with the left roller and the right roller are respectively fixed with the left roller shaft and the sliding block, and the center is recessed downward and cooperates with the contact parts of the left roller and the right roller to form a U shape groove.

The top of the stirring chamber of the crushing chamber is provided with an upper dosing port. It is used to add organic acid to reduce the pH value of the mixture and dissolve the harmful elements such as heavy metals in the sludge into the water.

The stone conveyor belt and the silt conveyor belt are both arranged in the form of a left high and a right low inclination, and the inclination angle is 0.6︒. The sloping arrangement in the opposite direction of travel allows part of the moisture that falls to the conveyor belt with the stones and silt to flow further to the lower part of the shell.

The surfaces of the left roller and the right roller are provided with mutually engaging square protruding blocks, and the square protruding blocks are roughened hard steel.

Example 3

The utility model relates to a water conservancy engineering device for river dredging, comprising a crushing chamber, a stone removing device, a conveying chamber, a centrifugal separation chamber, a first mixing chamber, a first filtering chamber, a second mixing chamber and a second filtering chamber.

The crushing cavity includes a crushing cavity shell, a suction mud pump, a high-pressure nozzle, a crushing cavity inlet, a crushing shaft, a crushing knife, a stirring chamber, an upper stirring shaft and an outlet of the crushing cavity; the suction mud pump is arranged on the outer top of the crushing cavity shell, It is communicated with the crushing cavity inlet arranged on the top of the crushing cavity shell. The suction mud pump is used to suck the silt in the river channel into the crushing cavity through the crushing cavity entrance. There are 6 high-pressure nozzles on the side wall of the cavity. The high-pressure nozzles disperse the sludge by spraying water with high pressure. A crushing shaft is laterally arranged on the right side of the cavity. There is a helical crushing knife, a stirring chamber is arranged at the terminal end of the crushing shaft, an upper stirring shaft is vertically arranged in the center of the top of the stirring chamber, and a crushing cavity outlet is arranged directly below the upper stirring shaft, and the crushing cavity is The outlet is formed in an arc downward from the edge of the stirring chamber.

The stone removal device is arranged directly below the outlet of the crushing chamber, and includes a stone removal device shell, a left roller part, a right roller part and a distribution groove; the left roller part and the right roller part are arranged in the stone removal device. Inside the shell, the distribution groove is arranged in the shape of a square funnel, and the bottom of the distribution groove runs through the bottom of the shell of the stone removal device and protrudes from the bottom of the shell of the stone removal device; the left roller part includes a left roller, a left roller shaft, Left chute and spring; the left roller rotates with the left roller shaft as the axis, the left roller is laterally arranged and includes the left roller shaft and the spring, and one end of the spring is connected to the left side of the left roller The other end is connected with the left roller shaft, the left top of the distribution groove is fixedly connected with the left roller shaft, and the right roller part includes a right roller, a right roller shaft, a right chute and a slider ; The right roller rotates with the right roller shaft as the axis, and is provided with a right chute on the left, and a slider is arranged in the right chute, and the right top of the distribution groove is fixedly connected with the slider, The left and right movement of the distribution groove is realized by the left and right movement of the left roller shaft; the left and right rollers are arranged in a horizontal axis shape, and the junction of the left and right rollers is located just below the outlet of the crushing chamber.

The transfer chamber includes a transfer chamber shell, a stone conveyor belt, a silt conveyor belt, an inclined baffle, a stone block deflector, a silt deflector, a transfer chamber water outlet and a stone block storage box; the stone block conveyor belt and the silt conveyor belt are It is arranged inside the casing of the conveying chamber from top to bottom in sequence, the right end of the stone conveying belt is located just below the leftmost end to which the distribution trough can move, and the left end is connected with the stone deflector, and the stone guide The flow plate is inclined downward, and the terminal end of the stone deflector is arranged in the stone storage box, and the stone storage box is used to store the stones conveyed from the stone conveying belt; the silt conveying belt The right end is located just below the rightmost end to which the distribution trough can move, and the left end is connected to the silt deflector; the stone conveyor belt and the silt conveyor belt are both conveyed from right to left, and the stone conveyor belt Both the rightmost end of the sludge conveyor belt and the rightmost end of the sludge conveyor belt are provided with inclined baffle plates upward; and the bottom of the conveyor chamber shell under the sludge conveyor belt is provided with a conveyor chamber water outlet.

Both the stone conveyor belt and the silt conveyor belt are provided with a plurality of upper and lower through holes. And the through holes are all through holes with an inner diameter of less than 1.2 mm.

The centrifugal separation chamber includes a separation inner barrel, a separation outer barrel, a rotating shaft, a separation solid outlet, a separation liquid outlet, and a sludge storage tank; the separation outer barrel is a hollow drum structure, and a separation inner barrel is coaxially arranged in the inner barrel. The separation inner barrel is divided into a lower main structure and an upper additional structure, the lower main structure is a funnel-shaped structure, and the upper additional structure is an inverted funnel-shaped structure. The structure accommodates the lower end of the silt deflector therein, so that almost all of the silt derived from the silt deflector can enter the separation inner barrel, and the rotating shaft is arranged at the axial center of the separation inner barrel and the separation outer barrel, And make the separation inner barrel rotate at a high speed with the rotating shaft as the axis, the separation solids outlet is arranged in the center of the bottom of the separation inner barrel, a sludge storage tank is connected through a pipeline below the separation solids outlet, and the separation liquid outlet is arranged at the bottom of the separation inner barrel. The bottom of the side wall of the separation outer tub is described.

The first mixing chamber includes a first mixing chamber shell, a first mixing chamber inlet, a first stirring shaft, a first dosing port and a first mixing chamber outlet; the first mixing chamber inlet is arranged on the first mixing chamber shell The top is connected with the water outlet of the transfer chamber, a first stirring shaft is vertically arranged on the top of the first mixing chamber shell, and a first dosing port is also set on the top of the first mixing chamber shell. A first mixing chamber outlet is arranged in the center of the bottom of the chamber shell.

The first filter chamber includes a first filter chamber shell, a first filter chamber inlet, a first filter chamber water outlet, a first inclined filter plate and a sundries storage box; the first filter chamber inlet is arranged in the first filter chamber The top of the shell is connected to the outlet of the first mixing chamber, a first inclined filter plate is inclined inside the shell of the first filter chamber, and the right end of the first inclined filter plate is arranged directly below the inlet of the first filter chamber , the left end is fixedly connected with the left side of the first filter chamber shell, and an opening is provided at the upper end of the junction, and a sundries storage box is provided on the outside of the first filter chamber shell at the junction with the first inclined filter plate. The sundries storage box is used to receive and store the solid matter on the upper part of the first inclined filter plate, and the water outlet of the first filter chamber is arranged at the bottom of the shell of the first filter chamber.

The second mixing chamber includes a second mixing chamber shell, a second mixing chamber inlet, a second stirring shaft, a second dosing port and a second mixing chamber outlet; the second mixing chamber inlet is arranged on the second mixing chamber shell The top of the second mixing chamber is connected with the water outlet of the first filter chamber. A second stirring shaft is vertically arranged on the top of the second mixing chamber shell. The center of the bottom of the shell of the second mixing chamber is provided with an outlet of the second mixing chamber.

The second filter chamber includes a second filter chamber shell, a second filter chamber inlet, a filtered water outlet, a second inclined filter plate, activated carbon particles and a calcium carbonate storage tank; the second filter chamber inlet is provided in the second filter chamber The top of the shell is connected with the outlet of the second mixing chamber, a second inclined filter plate is inclined inside the second filter chamber shell, and the right end of the second inclined filter plate is arranged directly below the entrance of the second filter chamber , the left end is fixedly connected with the left side of the second filter chamber shell and the upper end of the connection is provided with an opening, and a calcium carbonate storage box is arranged on the outside of the second filter chamber shell at the connection with the second inclined filter plate, so The calcium carbonate storage tank is used to receive and store the solid matter on the upper part of the second inclined filter plate. The inside of the second filter chamber shell below the second filter plate is filled with activated carbon particles, and the filtered water outlet It is arranged at the bottom of the second filter chamber shell.

The distribution tank is set in the shape of a square funnel that is open up and down (that is, a hollow inverted square table structure with open top and bottom surfaces).

The two ends of the side wall of the distribution groove in contact with the left roller and the right roller are respectively fixed with the left roller shaft and the sliding block, and the center is recessed downward and cooperates with the contact parts of the left roller and the right roller to form a U shape groove.

The stone conveyor belt and the silt conveyor belt are arranged in the form of a left high and a right low inclination, and the inclination angle is 1.2︒. The surfaces of the left roller and the right roller are both roughened wear-resistant steel.

Claims (9)

1. A hydraulic engineering device for dredging a river channel is characterized by comprising a crushing cavity, a stone removing device, a conveying chamber, a centrifugal separation chamber, a first mixing chamber, a first filtering chamber, a second mixing chamber and a second filtering chamber;

the crushing cavity comprises a crushing cavity shell, a dredge pump, a high-pressure nozzle, a crushing cavity inlet, a crushing shaft, a crushing cutter, a stirring chamber, an upper stirring shaft and a crushing cavity outlet; the sludge suction pump is arranged at the top outside the crushing cavity shell and is communicated with a crushing cavity inlet arranged at the top of the crushing cavity shell, the sludge suction pump is used for sucking sludge in a river channel into the crushing cavity through the crushing cavity inlet, a cavity is arranged right below the crushing cavity inlet, a plurality of high-pressure nozzles are arranged on the side wall of the cavity, the high-pressure nozzles are used for scattering the sludge in a high-pressure water injection mode, a crushing shaft is transversely arranged on the right side of the cavity, a spiral crushing cutter is arranged on the crushing shaft, a stirring chamber is arranged at the terminal of the crushing shaft, an upper stirring shaft is vertically arranged in the center of the top in the stirring chamber, a crushing cavity outlet is arranged right below the upper stirring shaft, and the crushing cavity outlet is formed by downwards arc-shaped edges of the stirring chamber;

the stone removing device is arranged right below the outlet of the crushing cavity and comprises a stone removing device shell, a left grinding roller part, a right grinding roller part and a distribution groove; the left grinding roller component and the right grinding roller component are arranged inside the shell of the stone removing device, the distribution groove is in a square funnel shape, and the bottom of the distribution groove penetrates through the bottom of the shell of the stone removing device and protrudes out of the bottom of the shell of the stone removing device; the left grinding roller component comprises a left grinding roller, a left grinding roller shaft, a left sliding groove and a spring; the left grinding roller rotates by taking a left grinding roller shaft as a shaft, the left chute is transversely arranged and encloses the left grinding roller shaft and the spring, one end of the spring is connected with the left side inside the left chute, the other end of the spring is connected with the left grinding roller shaft, the left top of the distribution groove is fixedly connected with the left grinding roller shaft, and the right grinding roller component comprises a right grinding roller, a right grinding roller shaft, a right chute and a sliding block; the right grinding roller rotates by taking the right grinding roller shaft as a shaft, a right sliding groove is formed in the left part of the right grinding roller, a sliding block is arranged in the right sliding groove, the right top of the distribution groove is fixedly connected with the sliding block, and the distribution groove moves left and right through the left and right movement of the left grinding roller shaft; the left grinding roller and the right grinding roller are arranged in a cross shaft shape, and the joint of the left grinding roller and the right grinding roller is positioned right below the outlet of the crushing cavity;

the conveying chamber comprises a conveying chamber shell, a stone conveying belt, a sludge conveying belt, an inclined baffle, a stone guide plate, a sludge guide plate, a conveying chamber water outlet and a stone storage box; the stone conveyor belt and the sludge conveyor belt are sequentially arranged in the conveying chamber shell from top to bottom, the right end of the stone conveyor belt is positioned right below the leftmost end, to which the distribution groove can move, of the distribution groove, the left end of the stone conveyor belt is connected with the stone guide plate, the stone guide plate is obliquely arranged downwards, the terminal of the stone guide plate is arranged in the stone storage box, and the stone storage box is used for storing stones conveyed from the stone conveyor belt; the right end of the sludge conveyor belt is positioned right below the rightmost end to which the distribution groove can move, and the left end of the sludge conveyor belt is connected with the sludge guide plate; the stone conveyor belt and the sludge conveyor belt are both conveyed from right to left, and inclined baffles are obliquely and upwards arranged at the rightmost ends of the stone conveyor belt and the sludge conveyor belt; a conveying chamber water outlet is formed in the bottom of the conveying chamber shell below the sludge conveying belt;

the centrifugal separation chamber comprises a separation inner barrel, a separation outer barrel, a rotating shaft, a separation solid outlet, a separation liquid outlet and a sludge storage tank; the separation outer barrel is of a hollow barrel structure, a separation inner barrel is coaxially arranged in the separation outer barrel, the separation inner barrel is divided into a lower main body structure and an upper additional structure, the lower main body structure is a funnel-shaped structure, the upper additional structure is an inverted funnel-shaped structure, the side wall of the funnel of the lower main body structure is a densely distributed through hole structure, the upper additional structure accommodates the lower end of the sludge guide plate therein, so that the sludge guided out by the sludge guide plate can enter the separation inner barrel basically and completely, the rotating shaft is arranged at the axle center parts of the separation inner barrel and the separation outer barrel, and the separation inner barrel rotates at high speed by taking the rotating shaft as a shaft, the separation solid outlet is arranged at the center of the bottom of the separation inner barrel, a sludge storage tank is connected below the separated solid outlet through a pipeline, and the separated liquid outlet is arranged at the bottom of the side wall of the separation outer barrel;

the first mixing chamber comprises a first mixing chamber shell, a first mixing chamber inlet, a first stirring shaft, a first dosing port and a first mixing chamber outlet; the inlet of the first mixing chamber is arranged at the top of the first mixing chamber shell and is communicated with the water outlet of the conveying chamber, a first stirring shaft is vertically arranged at the inner top of the first mixing chamber shell, a first medicine adding port is also arranged at the top of the first mixing chamber shell, and a first mixing chamber outlet is arranged at the center of the bottom of the first mixing chamber shell;

the first filter chamber comprises a first filter chamber shell, a first filter chamber inlet, a first filter chamber water outlet, a first inclined filter plate and a sundries storage box; the inlet of the first filtering chamber is arranged at the top of the first filtering chamber shell and is communicated with the outlet of the first mixing chamber, a first inclined filtering plate is obliquely arranged in the first filtering chamber shell, the right end of the first inclined filtering plate is arranged right below the inlet of the first filtering chamber, the left end of the first inclined filtering plate is fixedly connected with the left side in the first filtering chamber shell, an opening is formed in the upper end of the joint, a sundry storage box is arranged on the outer side of the first filtering chamber shell at the joint of the first inclined filtering plate and is used for receiving and storing solid matters on the upper part of the first inclined filtering plate, and the water outlet of the first filtering chamber is arranged at the bottom of the first filtering chamber shell;

the second mixing chamber comprises a second mixing chamber shell, a second mixing chamber inlet, a second stirring shaft, a second dosing port and a second mixing chamber outlet; the inlet of the second mixing chamber is arranged at the top of the second mixing chamber shell and is communicated with the water outlet of the first filtering chamber, a second stirring shaft is vertically arranged at the inner top of the second mixing chamber shell, a second medicine feeding port is also arranged at the top of the second mixing chamber shell, and a second mixing chamber outlet is arranged at the center of the bottom of the second mixing chamber shell;

the second filter chamber comprises a second filter chamber shell, a second filter chamber inlet, a filtered water outlet, a second inclined filter plate, activated carbon particles and a calcium carbonate storage tank; the second filter chamber entry sets up at second filter chamber shell top, and with the second mixing chamber export is linked together, and the slope is provided with second slope filter in the inside slope of second filter chamber shell, second slope filter right-hand member sets up under the second filter chamber entry, left end and the second filter chamber shell in left side looks rigid coupling and be provided with the opening in the upper end of department of meeting, be provided with the calcium carbonate bin in the second filter chamber shell outside of meeting department with second slope filter, the calcium carbonate bin is used for receiving the solid matter on second slope filter upper portion and stores the second filter below the inside active carbon particle that is full of second filter chamber shell, the drainage export sets up in second filter chamber shell bottom.

2. The hydraulic engineering device for dredging a river channel according to claim 1, wherein the distribution groove is formed in a square funnel shape with an upper portion and a lower portion being hollow.

3. The hydraulic engineering device for dredging river channels according to claim 1, wherein the two ends of the side wall of the distribution groove, which is in contact with the left grinding roller and the right grinding roller, are fixedly connected with the left grinding roller shaft and the sliding block respectively, and the center of the distribution groove is recessed downwards and matched with the contact parts of the left grinding roller and the right grinding roller to form a U-shaped groove.

4. The hydraulic engineering device for dredging river channels according to claim 1, wherein an upper chemical adding port is formed in the top of the stirring chamber of the crushing cavity.

5. The hydraulic engineering device for dredging river channels of claim 1, wherein the stone conveyor belt and the sludge conveyor belt are arranged in a form of a left-high right-low inclined form, and the inclined angle is 0.5-2 ︒.

6. The hydraulic engineering device for dredging river channels according to claim 1, wherein the surfaces of the left roller and the right roller are both made of roughened hard alloy.

7. The hydraulic engineering device for dredging river channels of claim 1, wherein the surfaces of the left roller and the right roller are provided with square protruding blocks which are engaged with each other relatively.

8. The hydraulic engineering device for dredging river channels of claim 1, wherein the surfaces of the left roller and the right roller are both roughened wear-resistant steel.

9. The hydraulic engineering device for dredging a river channel according to claim 1, wherein the stone conveyor belt and the sludge conveyor belt are provided with a plurality of upper and lower through holes.

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