Continuous industrial solid waste slip-form dam construction and storage integrated construction method

Abstract

The application discloses a continuous industrial solid waste slip-form dam construction and storage integrated method, which comprises a storage pool slip-form dam and a storage pool filling construction, wherein the storage pool slip-form dam comprises raw material supply and transportation and slip-form dam forming construction steps, the storage pool filling comprises raw material supply and transportation and storage pool filling construction steps; the storage pool slip-form dam and the storage pool filling construction production line are independently arranged to work, the storage pool dam body is poured through the storage pool slip-form dam, the single-layer dam body after pouring is detected, and after the detection is qualified, low-concentration industrial solid waste raw material mixture is filled into the storage pool through the storage pool filling construction production line to be stored, dam body pouring is performed after waiting for solidification, filling is detected, and the recycling, treatment and storage of the industrial solid waste raw material mixture are effectively realized.

Description

Technical Field

[0001] This invention relates to the field of industrial solid waste storage and treatment technology, and in particular to an integrated construction method for continuous industrial solid waste slipform dam construction and storage. Background Technology

[0002] Industrial solid waste refers to solid waste generated during industrial production activities. One category of solid waste includes various waste residues, dust, and other waste discharged into the environment during industrial production processes. It can be divided into general industrial waste (such as blast furnace slag, steel slag, red mud, non-ferrous metal slag, fly ash, coal slag, sulfuric acid slag, waste gypsum, desulfurization ash, carbide slag, salt mud, etc.) and hazardous industrial solid waste, also known as dangerous solid waste.

[0003] With the increase in industrial solid waste treatment facilities, the improvement in treatment rates, and the deepening of treatment processes in my country, many industrial solid wastes generated in my country's industrial production sectors still lack effective treatment measures. At the same time, due to various local factors, their recycling and utilization effects are also poor. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated construction method for continuous industrial solid waste slipform dam construction and storage, in order to solve the problem that industrial solid waste still lacks effective treatment measures and is also subject to various local factors that limit its recycling efficiency.

[0005] The technical solution of this invention: a continuous industrial solid waste slipform damming and storage integrated construction method, including slipform damming of the storage pool and filling construction of the storage pool:

[0006] The slipform damming of the storage pool includes the following construction steps:

[0007] Step A1, raw material supply and transportation: The industrial solid waste raw material mixture is transported to the slipform dam construction feeding bin by a closed transport vehicle. The slipform dam construction feeding bin is equipped with a belt conveyor at the discharge outlet. The industrial solid waste raw material mixture is transported to a high-concentration horizontal twin-shaft mixing tank for mixing by the belt conveyor.

[0008] Step A2, slipform dam formation: The industrial solid waste raw material mixture after stirring in step A1 is transported to the hopper of the slipform machine by a high-concentration conveying pump. The hopper level of the slipform machine is maintained at 40% to 70% for continuous feeding. The slipform machine moves at a constant speed along the designed trajectory of the storage pool. Through the integrated operation of extrusion and high-frequency vibration, the dam body is formed into a storage pool in one go.

[0009] The filling of the storage tank includes the following construction steps;

[0010] Step A11, raw material supply and transportation: the industrial solid waste raw material mixture is transported to the storage pool filling feed hopper by a closed transport vehicle. The storage pool filling feed hopper is equipped with a belt conveyor at the discharge outlet. The industrial solid waste raw material mixture is transported to a low-concentration horizontal twin-shaft mixing tank for mixing by the belt conveyor.

[0011] Step A22, filling the storage tank: The industrial solid waste raw material mixture after being stirred in step A11 above is transported to the inside of the formed storage tank by a low-concentration conveying pump. The industrial solid waste raw material mixture automatically levels and compacts itself by relying on its gravity flow characteristics, so that its filling height is flush with the top surface of the dam of the storage tank.

[0012] Furthermore, the industrial solid waste raw material mixture consists of gasification slag, fly ash, furnace slag, and desulfurization gypsum, with a moisture content ≤30% and a particle size ≤3cm.

[0013] Furthermore, the industrial solid waste raw material mixture in step A1 is a high-concentration industrial solid waste raw material mixture, and the feeding speed of the slipform dam construction feeding bin is set to 0-100t / h.

[0014] Furthermore, the belt conveyors in both step A1 and step A2 are equipped with belt meters.

[0015] Furthermore, the storage pool dam formed in step A2 has a bottom width of 0.8m, a top width of 0.4m, a height of 0.5-1.0m, and a density of ≥93%.

[0016] Furthermore, in step A11, the industrial solid waste raw material mixture is a low-concentration industrial solid waste raw material mixture, and the feeding speed of the storage tank filling feed hopper is 0-500 t / h.

[0017] Furthermore, in step A11, the low-concentration industrial solid waste raw material mixture is transported to a low-concentration horizontal twin-shaft mixing tank with a moisture content of 60% to 65% and stirred for ≥2 minutes to prepare a mixture with good fluidity and achieve self-leveling.

[0018] Furthermore, the slipform damming of the storage pool and the filling of the storage pool also include the following construction steps:

[0019] Step A3: Inspect the single-layer dam storage pool formed in Step A2 above. After construction reaches the design height, the equipment is stopped in sequence. The overall size of the storage pool, the flatness of the dam, the verticality, the density, and the inward distance are inspected. After the indicators meet the standards, proceed to Step A22 to put in a low-concentration industrial solid waste raw material mixture for storage.

[0020] Step A4: After the dam storage pool formed in steps A2 and A22 is completed and the storage pool is filled, the current top surface is used as a reference. Laser marking is performed to position the upper dam construction trajectory by shrinking inward by 0.5 to 0.8 meters in the horizontal direction. The slipform machine continues to build the upper dam along the new trajectory. The low-concentration delivery pump simultaneously fills the upper area with materials. The dual construction is carried out continuously without interruption. The construction is carried out layer by layer until the design height is reached, and finally a multi-level stepped inward structure storage pool is formed.

[0021] The advantages of this invention compared to existing technologies are as follows: the slipform dam construction and storage pool filling production lines are set up independently and operate independently. The storage pool dam body is poured first through slipform dam construction, and the poured single-layer dam body is tested. If the test is qualified, the low-concentration industrial solid waste raw material mixture is filled into the storage pool through the storage pool filling production line for storage. After solidification, the dam body is poured again, and the filling is tested. This effectively recycles, processes, and stores the industrial solid waste raw material mixture. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall production line for slipform dam construction of the storage pool according to the present invention;

[0023] Figure 2 This is a schematic diagram of the overall construction production line for filling the storage tank according to the present invention. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0026] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0027] See Figure 1-2 The continuous industrial solid waste slipform damming and storage integrated construction method of this invention includes slipform damming of the storage pool and storage pool filling construction. The two construction production lines are set up independently, and the storage pool slipform damming is carried out first, followed by the storage pool filling construction.

[0028] The construction of the slipform dam for the storage pool includes the following steps:

[0029] Step A1, raw material supply and transportation: The industrial solid waste mixture is transported to the slipform dam construction feeding silo 1 using sealed transport vehicles. This industrial solid waste mixture is a high-concentration industrial solid waste mixture. The slipform dam construction feeding silo 1 is a trapezoidal steel structure silo, wider at the top and narrower at the bottom. The top opening is 6m long and 3m wide, and the bottom opening is 4m long and 1.2m wide. The bottom of the silo is equipped with a frequency converter speed-regulating discharge port, and the discharge speed is adjustable from 0 to 100t / h. The effective volume meets the requirements for continuous feeding. Furthermore, a belt conveyor 2 is installed at its outlet. The belt conveyor has a width of 1.4m, an effective conveying length of 20 to 30m, and a conveying speed of 0.8 to 1.5m / s. It features an overall enclosed dustproof design, the belt surface is made of wear-resistant rubber material, and it is equipped with deviation protection, pull rope emergency stop, and overload protection devices. The belt conveyor is also equipped with a belt meter 3, which provides precise belt-type metering with an accuracy of ±1% and a range of 0–100 t / h. Real-time weight data is uploaded to the PLC control system to automatically match the water and reinforcing agent addition ratio. The belt conveyor transports the industrial solid waste mixture to a high-concentration horizontal twin-shaft mixing tank 4 for mixing. The mixing shaft rotates at 20–35 r / min, with a drive power of 45 kW. It is equipped with dual-channel variable frequency metering interfaces for water and reinforcing agent supply, achieving a mixing uniformity ≥95%. Simultaneously, it is mixed with a moisture content of 25%–35% to prepare a mixture that meets the requirements for slipform extrusion molding.

[0030] Step A2, slipform dam formation: The industrial solid waste mixture after stirring in step A1 is transported to the hopper of the slipform machine 6 by a high-concentration conveying pump 5. The high-concentration conveying pump can be a pump with a working pressure of 10-15MPa and a rated conveying capacity of 30-60m³ / h, which is specially used for high-pressure conveying of dry, hard, high-concentration materials. The material level in the slipform machine hopper is maintained at 40%-70% for continuous feeding. The slipform machine travels at a uniform speed along the designed trajectory of the storage pool. Through integrated extrusion and high-frequency vibration, the dam body is formed into the storage pool 7 in one continuous operation. The slipform machine 6 is a self-propelled extrusion and vibration integrated structure with a travel speed of 0.5-1.0m / min; a forming cavity width of 0.8-1.2m and a height of 0.5-0.8m; a vibration frequency of 50-60Hz; and is equipped with laser positioning and correction, with a dam body verticality deviation of ≤±0.5%.

[0031] The filling of the storage tank includes the following construction steps;

[0032] Step A11, raw material supply and transportation: The industrial solid waste raw material mixture is transported to the storage tank filling feed silo 11 by a closed transport vehicle. The industrial solid waste raw material mixture is a low-concentration industrial solid waste raw material mixture. The storage tank filling feed silo 11 is a trapezoidal steel structure silo with a wider top and a narrower bottom. The upper opening is 6m long and 3m wide, and the lower opening is 4m long and 1.2m wide. The bottom of the silo is equipped with a frequency conversion speed regulating discharge port, and the discharge speed is adjustable from 0 to 500t / h to meet the needs of large flow supply. A belt conveyor 22 is installed at the discharge outlet of the filling feed hopper 11 of the storage pool. This belt conveyor 22 has a belt meter 33 with a bandwidth of 1.4m, an effective conveying length of 20-30m, and a conveying speed of 0.8-1.5m / s. It features a fully enclosed structure, a wear-resistant rubber belt surface, and standard equipment including belt misalignment protection, pull-rope emergency stop, and slippage detection. The belt meter 33 has a metering accuracy of ±1%, a measuring range of 0-500t / h, and collects material weight in real time. It also controls the addition of water and reinforcing agents. The industrial solid waste mixture is transported to a low-concentration horizontal twin-shaft mixing tank 44 for mixing. The tank dimensions are: width 2m, length 8m, height 2m; the mixing shaft speed is 20-35 r / min, and the drive power is 75kW. It is equipped with dual-channel variable frequency metering water supply and reinforcing agent supply interfaces to meet the needs of high-flow mixing. The mixing is carried out at a moisture content of 60%-65% for ≥2 minutes to prepare a low-concentration material with good fluidity and self-leveling properties. The filling height is flush with the top surface of the dam body, without depressions, voids, or segregation. During the filling process, the low-concentration material achieves internal compaction by its own weight, without the need for vibration or manual leveling. After a single filling, a horizontal, solid, and continuous working platform is formed, providing a stable support surface for the next layer of slipform dam construction.

[0033] Step A22, filling the storage tank: The industrial solid waste mixture, stirred in step A11, is transported to the formed storage tank via a low-concentration conveying pump 55 (working pressure 2-10 MPa, rated conveying capacity 500-800 m³ / h) and a high-flow, wear-resistant centrifugal pump, suitable for long-distance, continuous conveying of low-concentration materials with dynamic flow. The industrial solid waste mixture automatically levels and compacts itself based on its gravity flow characteristics, ensuring the filling height is flush with the top surface of the dam. During the slipform dam construction, the material level in the feeding bin 1 and the storage tank filling feeding bin 11 is stably controlled at 30%-80%. Dust suppression is achieved throughout the unloading process, with the dust concentration on site ≤10 mg / m³, preventing spillage and secondary pollution.

[0034] Specifically, the industrial solid waste raw material mixture consists of gasification slag, fly ash, furnace slag, and desulfurization gypsum, with a moisture content ≤30% and a particle size ≤3cm.

[0035] Specifically, the storage pool dam formed in step A2 has a bottom width of 0.8m, a top width of 0.4m, a height of 0.5 to 1.0m, and a density of ≥93%.

[0036] Specifically, the slipform damming and filling of the storage pool also include the following construction steps:

[0037] Step A3 involves inspecting the single-layer dam storage pool formed in Step A2. After construction reaches the designed height, the equipment is shut down sequentially. The overall dimensions of the storage pool, the flatness of the dam, the verticality, the density, and the inward distance are inspected. Once the indicators meet the standards, step A22 is performed, in which a low-concentration mixture of industrial solid waste raw materials is added for storage. The storage pool, composed of the formed single-layer dam, is then inspected, and after filling, it is inspected again.

[0038] Step A4: After the dam storage pool formed in steps A2 and A22 is completed and the storage pool is filled, the current top surface is used as a reference. Laser positioning is carried out by shrinking inward by 0.5-0.8m in the horizontal direction, so that the inward distance of each layer is 0.5-0.8m, with the overall structure being larger at the bottom and smaller at the top, resulting in strong stability. The construction trajectory of the upper dam is marked, and the slipform machine continues to build the upper dam along the new trajectory. The low-concentration delivery pump simultaneously fills the upper area with materials. The dual construction is carried out continuously without interruption, and the construction is carried out layer by layer until the design height is reached, finally forming a multi-level stepped inward structure storage pool.

[0039] The two production lines for slipform dam construction and storage tank filling are centrally controlled by PLCs, operating independently, synchronously, and without interference. The system monitors parameters such as material level, belt speed, metering weight, mixing speed, pump pressure, and slipform trajectory in real time. In case of abnormalities such as deviation, overload, overpressure, blockage, or material shortage, an audible and visual alarm is immediately triggered, and the system shuts down protectively. Operation resumes automatically after the fault is cleared, ensuring continuous, safe, and stable construction. After construction is completed, the mixing tanks, conveying pumps, and pipelines are flushed with clean water to remove residual materials, prevent solidification and blockage, and ensure the equipment can operate repeatedly and continuously for extended periods.

[0040] In addition to the preferred embodiments described above, the present invention has other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection claimed by the present invention.

Claims

1. A continuous industrial solid waste slipform damming and storage integrated construction method, including slipform damming of the storage pool and filling of the storage pool, characterized in that: The slipform damming of the storage pool includes the following construction steps: Step A1, raw material supply and transportation: The industrial solid waste raw material mixture is transported to the slipform dam construction feeding bin by a closed transport vehicle. The slipform dam construction feeding bin is equipped with a belt conveyor at the discharge outlet. The industrial solid waste raw material mixture is transported to a high-concentration horizontal twin-shaft mixing tank for mixing by the belt conveyor. Step A2, slipform dam formation: The industrial solid waste raw material mixture after stirring in step A1 is transported to the hopper of the slipform machine by a high-concentration conveying pump. The hopper level of the slipform machine is maintained at 40% to 70% for continuous feeding. The slipform machine moves at a constant speed along the designed trajectory of the storage pool. Through the integrated operation of extrusion and high-frequency vibration, the dam body is formed into a single-layer storage pool in one go. The filling of the storage tank includes the following construction steps; Step A11, raw material supply and transportation: the industrial solid waste raw material mixture is transported to the storage pool filling feed hopper by a closed transport vehicle. The storage pool filling feed hopper is equipped with a belt conveyor at the discharge outlet. The industrial solid waste raw material mixture is transported to a low-concentration horizontal twin-shaft mixing tank for mixing by the belt conveyor. Step A22, filling the storage tank: The industrial solid waste raw material mixture after being stirred in step A11 above is transported to the inside of the formed storage tank by a low-concentration conveying pump. The industrial solid waste raw material mixture automatically levels and compacts itself by relying on its gravity flow characteristics, so that its filling height is flush with the top surface of the dam of the storage tank.

2. The integrated construction method for continuous industrial solid waste slipform dam construction and storage as described in claim 1, characterized in that, The industrial solid waste raw material mixture consists of gasification slag, fly ash, furnace slag, and desulfurization gypsum, with a moisture content ≤30% and a particle size ≤3cm.

3. The integrated construction method for continuous industrial solid waste slipform dam construction and storage according to claim 1, characterized in that, The industrial solid waste raw material mixture in step A1 is a high-concentration industrial solid waste raw material mixture, and the feeding speed of the slipform dam construction feeding bin is set to 0-100t / h.

4. The integrated construction method for continuous industrial solid waste slipform dam construction and storage according to claim 2, characterized in that, Both the belt conveyor in step A1 and step A2 are equipped with belt meters.

5. The integrated construction method for continuous industrial solid waste slipform dam construction and storage according to claim 4, characterized in that, The storage pool dam formed in step A2 has a bottom width of 0.8m, a top width of 0.4m, and a height of 0.5-1.0m, with a density of ≥93%.

6. The integrated construction method for continuous industrial solid waste slipform dam construction and storage according to claim 1, characterized in that, The industrial solid waste raw material mixture in step A11 is a low-concentration industrial solid waste raw material mixture, and the feeding speed of the storage tank filling feed hopper is 0-500t / h.

7. The integrated construction method for continuous industrial solid waste slipform dam construction and storage according to claim 6, characterized in that, In step A11, the low-concentration industrial solid waste raw material mixture is transported to a low-concentration horizontal twin-shaft mixing tank with a moisture content of 60% to 65% and stirred for ≥2 minutes to prepare a mixture with good fluidity and achieve self-leveling.

8. The integrated construction method for continuous industrial solid waste slipform dam construction and storage according to claim 1, characterized in that, The slipform damming and filling of the storage pool also include the following construction steps: Step A3: Inspect the single-layer dam storage pool formed in Step A2 above. After construction reaches the design height, the equipment is stopped in sequence. The overall size of the storage pool, the flatness of the dam, the verticality, the density, and the inward distance are inspected. After the indicators meet the standards, proceed to Step A22 to put in a low-concentration industrial solid waste raw material mixture for storage. Step A4: After the dam storage pool formed and filled in steps A2 and A22 are completed, using the current top surface as a reference, laser marking is performed to locate the upper dam construction trajectory by retracting 0.5–0.8 m horizontally inward. The slipform machine continues to build the upper dam along the new trajectory, while the low-concentration delivery pump simultaneously fills the upper area. The materials are transported through a continuous, uninterrupted dual-construction process, with each layer being constructed in a cyclical manner until the designed height is reached, ultimately forming a multi-level, stepped, inward-facing storage tank.

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