Screening device for engineering slurry treatment
By introducing a two-stage cyclone separator and reasonable structural design into the engineering mud treatment device, the problem that traditional screening devices cannot effectively separate large-grain mud is solved, and the extraction rate and treatment efficiency of finished sand are improved.
Patent Information
- Application Number
- CN202420901515.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-28
AI Technical Summary
Traditional mud screening devices cannot effectively separate large particles of sand-containing mud, resulting in waste of sand and reduced finished sand extraction rate.
A screening device including a drum screen, a dehydration screen and a two-stage cyclone separator was designed. By connecting the first-stage and second-stage cyclone separators in series, the effective separation of large particles is achieved, and waste materials are installed on the working platform and The independent discharge area of finished sand is used to improve the collection efficiency of waste and finished sand by using the flow pipe and collection cylinder.
It effectively avoids the waste of sand, improves the extraction rate of finished sand, and simplifies the cleaning and transportation process of waste and finished sand through reasonable structural design.
Smart Images
Figure CN222274345U_ABST
Abstract
Description
Technical field:
[0002] The utility model relates to a screening device for engineering mud treatment. Background technology:
[0004] Engineering mud refers to the mud-water mixture produced during the construction of construction projects, tunnel projects, foundation projects, etc. Engineering mud has a huge impact on the environment. If it is not handled in time, it will cause soil erosion. The use of building materials is currently an ideal way to deal with engineering mud. The mud cake after dehydration of engineering mud is used as a raw material for building materials, generally including for making ceramsite, bricks and lightweight aggregates. my country is actively promoting the comprehensive utilization of mud cake building materials.
[0005] At present, when engineering mud is used for building materials, it is necessary to screen the mud in order to obtain finished sand. However, traditional mud screening is only achieved through a drum screen, followed by dehydration. Although this can filter out some small stones, shells and other waste materials (>50mm), some large particles of sand-containing mud cannot be effectively separated, resulting in a waste of sand and a reduction in the extraction rate of finished sand. Therefore, it is necessary to improve the above technical problems, and this case was born. Utility model content:
[0007] The utility model makes improvements on the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the utility model is to provide a screening device for engineering mud treatment.
[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a screening device for engineering mud treatment, comprising a drum screen and a dewatering screen arranged on a working platform, the feed end of the drum screen is connected to the mud water delivery pipe, and a primary cyclone separator and a secondary cyclone separator connected in series are arranged between the drum screen and the dewatering screen, the feed end of the primary cyclone separator is connected to the underflow output end of the drum screen, and the underflow output end of the secondary cyclone separator is connected to the feed end of the dewatering screen.
[0009] Furthermore, a waste discharge area and a finished sand discharge area are provided on the left and right sides of the front side of the working platform. The waste discharge area corresponds to the position of the drum screen, and the finished sand discharge area corresponds to the position of the dewatering screen.
[0010] Furthermore, the drum screen is inclined with a low front end and a high rear end, and a discharge port is provided on the working platform at a position corresponding to the position of the waste discharge port at the front end of the drum screen, and a guide pipe extending forward to the waste discharge area is provided at the lower end of the discharge port; the solid material discharge port of the dewatering screen extends forward to the finished sand discharge area.
[0011] Furthermore, a first support frame is provided in the waste discharge area, a waste collecting cylinder with an open top is provided on the first support frame, a waste discharge pipe is connected to the bottom of the waste collecting cylinder, and a first control valve is provided on the waste discharge pipe; a second support frame is provided in the finished sand discharge area, a finished sand collecting cylinder with an open top is provided on the second support frame, a finished sand discharge pipe is connected to the bottom of the finished sand collecting cylinder, and a second control valve is provided on the finished sand discharge pipe.
[0012] Furthermore, it also includes a mud water input mechanism, which includes a mud storage tank for receiving mud transported by a tank truck, the top of the mud storage tank is open and is provided with a filter plate to facilitate the passage of mud water, the lower end of the mud storage tank is connected to at least one stirring barrel through a discharge pipe, each stirring barrel is provided with a stirring assembly for stirring the mud water, and each stirring barrel is connected to a water injection pipe.
[0013] Furthermore, there are two mixing barrels, which are distributed on the left side of the mud storage tank. A discharge main pipe connected to the mud water delivery pipe is arranged on the left side of the two mixing barrels. The discharge main pipe is connected to each mixing barrel through a discharge branch pipe, and a discharge pump is installed on the discharge branch pipe; the discharge pipe includes a discharge main pipe connected to the lower end of the mud storage tank, the discharge main pipe is connected to two discharge branch pipes, and the two discharge branch pipes are respectively connected to the side walls of the two mixing barrels; a suction pump is installed on the discharge main pipe, and a feed control valve is arranged on each discharge branch pipe.
[0014] Furthermore, a walking platform is arranged just above the middle of the two mixing barrels, and the mixing assembly includes a mixing shaft vertically arranged in the middle of the mixing barrel, the mixing shaft is driven to rotate by a mixing motor installed on the walking platform, and a plurality of mixing rods are fixed to the outer surface of the mixing shaft.
[0015] Compared with the prior art, the utility model has the following effects: the utility model has a reasonable structural design, and by adding a two-stage cyclone separator, it is convenient to effectively separate large-particle sand-containing mud, effectively avoid sand waste, and improve the extraction rate of finished sand. Description of the drawings:
[0017] Figure 1 It is a schematic diagram of the top view of the structure of an embodiment of the utility model;
[0018] Figure 2 It is a side view schematic diagram of the structure of an embodiment of the utility model;
[0019] Figure 3 It is a schematic diagram of the top view of the mud water input mechanism in the embodiment of the utility model;
[0020] Figure 4 yes Figure 3 AA section diagram in . Specific implementation method:
[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0024] like Figures 1-2 As shown, the utility model is a screening device for engineering mud treatment, comprising a drum screen 31 and a dewatering screen 32 which are distributed on the left and right and arranged on a working platform 30, the feed end of the drum screen 31 is connected to a mud water conveying pipe 33, the mud water conveying pipe 33 conveys mud water to the drum screen, and the drum screen seat performs primary separation to separate waste materials (small stones, shells, etc.) larger than 50 mm; a primary cyclone separator 34 and a secondary cyclone separator 35 which are connected in series are arranged between the drum screen 31 and the dewatering screen 32, the feed end of the primary cyclone separator 34 is connected to the bottom flow output end of the drum screen 31, and the bottom flow processed by the drum screen is transported to the primary cyclone separator for separation; the bottom flow output end of the secondary cyclone separator 35 is connected to the feed end of the dewatering screen 32, and the material separated by the secondary cyclone separator is transported to the dewatering screen for dehydration treatment, so as to output finished sand, and the liquid is transported to the next process for treatment. By adding a two-stage cyclone separator, it is easier to effectively separate the large-particle sand-containing mud, effectively avoiding the waste of sand and improving the extraction rate of finished sand.
[0025] In this embodiment, the front side of the working platform 30 is provided with a waste discharge area 36 and a finished sand discharge area 37 which are distributed on the left and right and are independent of each other. The waste discharge area 36 corresponds to the position of the drum screen 31, and the small-particle waste output by the drum screen falls into the waste discharge area to facilitate subsequent loading and transportation; the finished sand discharge area 37 corresponds to the position of the dewatering screen 32, and the finished sand output by the dewatering screen falls into the finished sand discharge area.
[0026] In this embodiment, the drum screen 31 is inclined with a low front end and a high rear end. A discharge port 38 is provided on the working platform 30 at a position corresponding to the position of the waste discharge port at the front end of the drum screen 31. A guide pipe 39 extending forward to the waste discharge area 36 is provided at the lower end of the discharge port 38; the solid material discharge port of the dewatering screen 32 extends forward to the finished sand discharge area 37.
[0027] In this embodiment, a first support frame 40 is provided in the waste discharge area 36, and a waste collection barrel 41 with an open top is provided on the first support frame 40. The first support frame supports the waste collection barrel at a certain height above the ground, and the height is convenient for vehicles to accommodate; a waste discharge pipe 42 is connected to the bottom of the waste collection barrel 41, and a first control valve is provided on the waste discharge pipe. During operation, the waste output by the drum screen falls into the waste collection barrel, and then the vehicle moves to the bottom of the waste collection barrel, and the waste is discharged into the vehicle through the waste discharge pipe and transported away by the vehicle. Since the waste is no longer directly output and falls on the ground, there is no need to use a forklift to load and transport it later.
[0028] In this embodiment, a second support frame is provided in the finished sand discharge area 37, and a finished sand collecting cylinder 43 with an open top is provided on the second support frame. The second support frame supports the finished sand collecting cylinder at a certain height above the ground, and the height is convenient for vehicles to accommodate; the bottom of the finished sand collecting cylinder is connected to a finished sand discharge pipe, and a second control valve is provided on the finished sand discharge pipe. It should be noted that the structure composed of the second support frame, the finished sand collecting cylinder, the finished sand discharge pipe, etc. is the same as the structure in the waste discharge area. During operation, the finished sand output by the dewatering screen falls into the finished sand collecting cylinder, and then the vehicle moves to the bottom of the finished sand collecting cylinder, and the finished sand is discharged into the vehicle through the finished sand discharge pipe and transported away by the vehicle.
[0029] In another embodiment, a mud water input mechanism is further included, and the mud water input mechanism includes a mud storage tank 1 set on the ground, and the top of the mud storage tank is open. The mud storage tank 1 is used to receive the engineering mud transported by the tank truck. The top of the mud storage tank 1 is open and is provided with a filter screen 2 to facilitate the passage of mud water. The filter screen is convenient for the passage of mud water, while large particles of waste remain on the filter screen to achieve filtration; the lower end of the mud storage tank 1 is connected to at least one mixing barrel 3 through a discharge pipe, and each mixing barrel 3 is provided with a mixing assembly 4 for stirring the mud water, and each mixing barrel 3 is connected to a water injection pipe 5, and the water injection pipe is used to inject water into the mixing barrel to increase the water content of the mud water. During operation, the tank truck transports the engineering mud to the mud storage tank, and uses the tank truck's own pump or direct dumping to transport the mud to the open filter screen at the top of the mud storage tank. The mud water passes through the filter screen and enters the mud storage tank, while large particles of waste remain on the filter screen to achieve filtration. The mud water in the mud storage tank is transported to at least one mixing barrel through a discharge pipe. The mixing assembly in the mixing barrel stirs the mud water to avoid sedimentation, so that it can be sent to the next treatment process. The whole process is convenient for preliminary filtration of engineering mud, and it takes less time, which improves the processing efficiency.
[0030] In the mud water input mechanism, there are two stirring barrels 3, and the two stirring barrels 3 are distributed side by side on the left side of the mud storage tank 1. A discharge main pipe 6 connected to the mud water conveying pipe is arranged on the left side of the two stirring barrels 3. The discharge main pipe 6 is connected to each stirring barrel 3 through a discharge branch pipe 7. The discharge branch pipe 7 extends from the top of the stirring barrel 3 from top to bottom. A discharge pump is installed on the discharge branch pipe. The discharge pump is used to pump the mud water in the stirring barrel to the discharge main pipe, and then the discharge pipe is transported to the next process.
[0031] In the mud water input mechanism, the discharge pipe includes a discharge main pipe 8 connected to the lower end of the mud storage tank 1, and the discharge main pipe 8 is connected to two discharge branch pipes 9, and the two discharge branch pipes 9 are respectively connected to the side walls of the two mixing barrels 3; a suction pump 10 is installed on the discharge main pipe 8, and the suction pump is used to pump out the mud water, and each discharge branch pipe 9 is provided with a feed control valve 11.
[0032] In the mud water input mechanism, a walking platform 12 is arranged just above the middle of the two mixing barrels 3. The mixing assembly includes a mixing shaft 13 vertically arranged in the middle of the mixing barrel 3. The mixing shaft 13 is driven to rotate by a mixing motor 14 installed on the walking platform 12. A plurality of mixing rods 15 are fixed to the outer surface of the mixing shaft 13.
[0033] In the mud water input mechanism, in order to improve the protection effect, the top left end, the front end and the rear end of the mud storage tank 1 are all provided with protective retaining walls 16.
[0034] In the mud water input mechanism, a waste receiving groove 18 is provided at the top right end of the mud storage tank 1, and the top of the waste receiving groove 18 is open; the right end of the filter screen plate 2 is hinged to the top right end of the mud storage tank 1 through a longitudinal rotating shaft, and the filter screen plate 2 is driven by the driving assembly to swing up and down around the longitudinal rotating shaft. When the filter screen plate swings upward, the waste on the filter screen plate 2 falls down to the waste receiving groove to collect the filtered waste. Specifically, the driving assembly includes two transverse support rods 19 arranged at the upper end of the protective retaining wall 16 at the left end of the mud storage tank 1, and the two transverse support rods 19 are distributed at intervals along the longitudinal direction. A pulley 20 is installed at the right end of the transverse support rod 19, and a winch 21 is provided on the left side of the transverse support rod 19. The steel rope 22 on the winch 21 passes around the pulley 20 and is connected to the left end of the filter screen plate 2. During operation, the winch reels in the steel rope, and the steel rope pulls the filter screen to swing upward; when the winch releases the steel rope, the steel rope drives the filter screen to swing downward.
[0035] It should be noted that the drum screen, dewatering screen and cyclone separator are all existing mature products, and their structures and working principles will not be repeated here.
[0036] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an one-piece molding process).
[0037] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.
[0038] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.
Claims
1. A screening device for engineering mud treatment, comprising a drum screen and a dewatering screen arranged on a working platform, characterized in that: The feed end of the drum screen is connected to the mud water conveying pipe, and a primary cyclone separator and a secondary cyclone separator connected in series are arranged between the drum screen and the dewatering screen. The feed end of the primary cyclone separator is connected to the underflow output end of the drum screen, and the underflow output end of the secondary cyclone separator is connected to the feed end of the dewatering screen.
2. A screening device for processing engineering mud according to claim 1, characterized in that: The front side of the working platform is provided with a waste discharge area and a finished sand discharge area distributed on the left and right. The waste discharge area corresponds to the position of the drum screen, and the finished sand discharge area corresponds to the position of the dewatering screen.
3. A screening device for processing engineering mud according to claim 2, characterized in that: The drum screen is inclined with a low front end and a high rear end. A discharge port is provided on the working platform at a position corresponding to the waste discharge port at the front end of the drum screen. A guide pipe extending forward to the waste discharge area is provided at the lower end of the discharge port; the solid material discharge port of the dewatering screen extends forward to the finished sand discharge area.
4. A screening device for processing engineering mud according to claim 2, characterized in that: A first support frame is provided in the waste discharge area, and a waste collecting cylinder with an open top is provided on the first support frame, a waste discharge pipe is connected to the bottom of the waste collecting cylinder, and a first control valve is provided on the waste discharge pipe; a second support frame is provided in the finished sand discharge area, and a finished sand collecting cylinder with an open top is provided on the second support frame, a finished sand discharge pipe is connected to the bottom of the finished sand collecting cylinder, and a second control valve is provided on the finished sand discharge pipe.
5. A screening device for processing engineering mud according to claim 1, characterized in that: It also includes a mud water input mechanism, which includes a mud storage tank for receiving mud transported by a tank truck, the top of the mud storage tank is open and is provided with a filter plate to facilitate the passage of mud water, the lower end of the mud storage tank is connected to at least one stirring barrel through a discharge pipe, each stirring barrel is provided with a stirring assembly for stirring the mud water, and each stirring barrel is connected to a water injection pipe.
6. A screening device for processing engineering mud according to claim 5, characterized in that: There are two mixing barrels, which are distributed on the left side of the mud storage tank. A discharge main pipe connected to the mud water delivery pipe is arranged on the left side of the two mixing barrels. The discharge main pipe is connected to each mixing barrel through a discharge branch pipe, and a discharge pump is installed on the discharge branch pipe; the discharge pipe includes a discharge main pipe connected to the lower end of the mud storage tank, and the discharge main pipe is connected to two discharge branch pipes, and the two discharge branch pipes are respectively connected to the side walls of the two mixing barrels; a suction pump is installed on the discharge main pipe, and a feed control valve is arranged on each discharge branch pipe.
7. A screening device for processing engineering mud according to claim 6, characterized in that: A walking platform is arranged just above the middle of the two mixing barrels. The mixing assembly comprises a mixing shaft vertically arranged in the middle of the mixing barrel. The mixing shaft is driven to rotate by a mixing motor installed on the walking platform. A plurality of mixing rods are fixed to the outer surface of the mixing shaft.