Engineering slurry treatment system
By designing the engineering mud treatment system, using equipment such as drum screening machine, two-stage cyclone and plate frame filter press, the problem of difficulty in dehydration and resource utilization of sand materials in engineering mud is solved, and the recovery of sand materials and The reuse of water resources reduces the cost of mud treatment.
Patent Information
- Application Number
- CN202420894902.3
- 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
During the construction process, the mud of the project contains sand and mud, which is difficult to dehydrate naturally and recycle, and the high moisture content leads to difficulty in dehydration.
An engineering mud treatment system was designed, including roller screening machine, two-stage cyclone, wheel bucket sand washing machine, dehydration screen, plate and frame filter press and other equipment, through cyclone grading, sand washing, dehydration and depth Filtration pressure treatment realizes the recycling of sand material and the reuse of water resources.
The moisture content of the engineering mud is effectively reduced, from about 60% to less than 30%, reducing the mud outbound volume and treatment cost, realizing the resource utilization of sand materials and the reuse of water resources.
Smart Images
Figure CN222274340U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an engineering mud processing system. Background Art
[0002] During the construction process, high-water content mud excavation will be carried out, among which pile driving and mud water are engineering mud, which can be divided into self-hardening mud and non-hardening mud. The properties of engineering mud are mainly affected by soil properties and water content, and have the following characteristics: ① The appearance is light yellow or black; ② The pH value is high, mostly alkaline; ③ It is generally composed of inorganic substances, and the chemical composition mainly includes SiO2, Al2O3, Fe2O3, CaO, etc., containing a small amount of heavy metal elements; ④ The viscosity content is high, the average particle size is about 10μm, and it is difficult to settle naturally; ⑤ The water content is high, generally 60% to 80%, dehydration is difficult, and the natural air drying process is slow.
[0003] Since engineering mud contains sand and mud, if it can be recycled, it will help to achieve resource utilization. For this reason, an engineering mud treatment system is needed. Utility Model Content
[0004] The utility model aims to provide an engineering mud processing system, which is convenient for processing engineering mud and realizing sand material recovery for resource utilization.
[0005] The technical solution of the utility model is: an engineering mud processing system, comprising an engineering mud storage tank, the storage tank is connected to a drum screening machine via a first pump body, the underflow output pipeline of the drum screening machine is connected to a primary classification cyclone, the underflow output pipeline of the primary classification cyclone is connected to a secondary classification cyclone, the underflow output pipeline of the secondary classification cyclone is connected to a wheel bucket sand washing machine, the sand material output end of the wheel bucket sand washing machine is connected to a dewatering screen, and the particle output end of the dewatering screen is connected to a belt conveyor.
[0006] Furthermore, a second pump body is provided on the underflow output pipeline of the drum screening machine, and a third pump body is provided on the underflow output pipeline of the first-stage grading cyclone.
[0007] Furthermore, the overflow pipeline of the bucket wheel sand washing machine is connected to the secondary classification cyclone, and the underflow output pipeline of the dewatering screen is connected to the secondary classification cyclone.
[0008] Furthermore, the overflow pipelines of the primary grading cyclone and the secondary grading cyclone are connected to the overflow tank, the overflow tank is connected to the conditioning and concentrating tank via a pipeline with a fourth pump body, and the sludge output pipeline of the conditioning and concentrating tank is connected to the plate and frame filter press.
[0009] Furthermore, the sludge output pipeline is connected to the input end of the plate and frame filter press through the fifth pump body.
[0010] Furthermore, the wastewater output pipeline of the conditioning and concentrating tank and the wastewater output pipeline of the plate and frame filter press are both connected to the input end of the tertiary sedimentation tank, and the terminal tank body of the tertiary sedimentation tank is provided with water supply pipelines leading to the drum screening machine, the first-level grading cyclone, and the second-level grading cyclone respectively.
[0011] Compared with the prior art, the utility model has the following advantages:
[0012] The system uses two-stage high-efficiency hydrocyclones to separate the sand in the engineering mud, first separate and clean the less sand in the engineering mud, and then use a high-pressure plate and frame diaphragm filter press to deeply deslud and dehydrate the remaining mud, reducing the water content of the engineering mud from the original 60% to below 30%, greatly reducing the amount of mud shipped and the final processing cost of the mud cake. Finally, the mud cake is shipped out for resource utilization in building materials and other aspects and the sand is recycled. In addition, water resources are recycled and reused to reduce water consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a system diagram of the utility model;
[0014] In the figure: 1- engineering mud temporary storage tank 10- storage tank 11- first pump body 20- drum screen 21- second pump body 30- primary classification cyclone 31- third pump body 40- secondary classification cyclone 50- bucket sand washing machine 60- dewatering screen 61- belt conveyor 70- overflow tank 71- fourth pump body 80- conditioning and concentration tank 81- fifth pump body 90- plate and frame filter press 100- tertiary sedimentation tank 101- water supply pipeline. DETAILED DESCRIPTION
[0015] In order to make the above features and advantages of the present invention more understandable, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.
[0016] refer to Figure 1
[0017] An engineering mud treatment system includes an engineering mud storage tank 10, which is connected to a drum screening machine 20 through a first pump body 11, and the drum screening machine model is GTS-1540; the drum screening machine is used to screen out organic impurities with a diameter greater than 50 mm. The underflow output pipeline of the drum screening machine is connected to a primary classification cyclone 30, and the underflow output pipeline of the primary classification cyclone is connected to a secondary classification cyclone 40, so that the engineering mud is subjected to cyclone classification. The underflow output pipeline of the secondary classification cyclone is connected to a wheel bucket sand washer 50, and the sand and gravel materials are stirred, turned over, and washed in water by the wheel bucket sand washer. The sand material output end of the wheel bucket sand washer is connected to a dewatering screen 60, and the dewatering screen model is TSS1535. Thus, the cleaned sand material is sent to the dewatering screen for dehydration. The particle output end of the dewatering screen is connected to a belt conveyor 61, so that the product sand is output through the belt conveyor for subsequent sales.
[0018] In this embodiment, a second pump body 21 is provided on the underflow output pipeline of the drum screening machine, so that the underflow product of the drum screening machine is input into the primary classification cyclone for cyclone classification through the second pump body. A third pump body 31 is provided on the underflow output pipeline of the primary classification cyclone, so that the underflow product of the primary classification cyclone is input into the secondary classification cyclone for secondary cyclone classification through the third pump body.
[0019] In this embodiment, the first-stage classification cyclone and the second-stage classification cyclone are Enmate C-type high-efficiency hydrocyclones, model ENX-FJ550 / GT.
[0020] In this embodiment, the overflow pipeline of the bucket wheel sand washing machine is connected to the secondary classification cyclone, and the underflow output pipeline of the dewatering screen is connected to the secondary classification cyclone, so that the overflowing mixed liquid is sent to the secondary classification cyclone again for cyclone classification, thereby improving the sand recovery effect and reducing the generation of sewage.
[0021] In this embodiment, the overflow pipelines of the primary classification cyclone and the secondary classification cyclone are connected to the overflow tank 70, the overflow tank is connected to the conditioning and concentration tank 80 through the pipeline with the fourth pump body 71, and the sludge output pipeline of the conditioning and concentration tank is connected to the input end of the plate and frame filter press 90 through the fifth pump body 81. The plate and frame filter press is a high-pressure plate and frame diaphragm filter press, model XMYZG500-1600-U (1.2Mpa).
[0022] In this embodiment, the wastewater output pipeline of the conditioning and concentrating tank and the wastewater output path 91 of the plate and frame filter press are both connected to the input end of the tertiary sedimentation tank 100, and the terminal tank body of the tertiary sedimentation tank is provided with water supply pipelines 101 leading to the drum screening machine, the first-level grading cyclone, and the second-level grading cyclone respectively.
[0023] In this embodiment, a temporary storage tank 1 for engineering mud is also provided, and the mud in the storage tank can be transported to a storage tank through a mortar pump. A mud mixer is provided in the storage tank, and the mixer model is XCK2500 (CS); and a reagent mixer is provided in the conditioning and concentration tank, and the model is ZCX1000 (CS).
[0024] In this embodiment, the first pump body, the second pump body, the third pump body, and the fourth pump body are mortar pumps, and the fifth pump body can be a slurry pump.
[0025] The mud entering the storage pool is injected with water to increase the water content to 80% for subsequent treatment. The mud enters the drum screening machine through the first pump body for primary separation. After screening by the drum screen, waste materials >50mm (small stones, shells, etc.) are discharged to the waste pile through the waste port and loaded and transported by a forklift. The sand-containing mud water with large particles removed is sent to the cyclone separator, and after primary and secondary cyclone separation, the clean finished sand is extracted after sand washing by a wheel bucket sand washing machine. The product sand can be transported to the finished sand storage site for temporary storage after dehydration (the moisture content of the finished sand is about 10%).
[0026] The muddy water wastewater after screening and separation flows into the overflow tank, and then is lifted to the conditioning and concentration tank through the fourth pump body for drug addition treatment. After flocculation and sedimentation, the supernatant enters the tertiary sedimentation tank, is returned to production after sedimentation, and a small part is discharged externally; the muddy water in the conditioning and concentration tank is pumped into the plate and frame filter press by the sludge pump for filtration, and the obtained mud cake is loaded and transported by a forklift, and the water content of the mud cake is about 30%; the clean water after filtration enters the tertiary sedimentation tank, and the clean water is recycled for circulation.
[0027] If the words "first", "second" and the like are used in the above-mentioned utility model to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above-mentioned words have no special meaning.
[0028] 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 fixed connection to each other 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).
[0029] 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.
[0030] 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.
[0031] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.
Claims
1. An engineering mud treatment system, comprising an engineering mud storage tank, characterized in that: The storage tank is connected to the drum screening machine through the first pump body, the underflow output pipeline of the drum screening machine is connected to the primary classification cyclone, the underflow output pipeline of the primary classification cyclone is connected to the secondary classification cyclone, the underflow output pipeline of the secondary classification cyclone is connected to the bucket wheel sand washing machine, the sand output end of the bucket wheel sand washing machine is connected to the dewatering screen, and the particle output end of the dewatering screen is connected to the belt conveyor.
2. The engineering mud treatment system according to claim 1, characterized in that: A second pump body is arranged on the underflow output pipeline of the drum screening machine, and a third pump body is arranged on the underflow output pipeline of the first-stage grading cyclone.
3. The engineering mud treatment system according to claim 1 or 2, characterized in that: The overflow pipeline of the bucket wheel sand washing machine is connected to the secondary classification cyclone, and the underflow output pipeline of the dewatering screen is connected to the secondary classification cyclone.
4. The engineering mud treatment system according to claim 1 or 2, characterized in that: The overflow pipelines of the primary grading cyclone and the secondary grading cyclone are connected to the overflow tank, the overflow tank is connected to the conditioning and concentrating tank through the pipeline with the fourth pump body, and the sludge output pipeline of the conditioning and concentrating tank is connected to the plate and frame filter press.
5. The engineering mud treatment system according to claim 4, characterized in that: The sludge output pipeline is connected to the input end of the plate and frame filter press through the fifth pump body.
6. The engineering mud treatment system according to claim 4, characterized in that: The wastewater output pipeline of the conditioning and concentrating tank and the wastewater output line of the plate and frame filter press are all connected to the input end of the tertiary sedimentation tank. The terminal tank body of the tertiary sedimentation tank is provided with water supply pipelines leading to the drum screening machine, the first-level grading cyclone and the second-level grading cyclone respectively.
Citation Information
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