Water circulation system of slag treatment plant

Abstract

The utility model discloses a water circulation system of a slag treatment plant. The water circulation system comprises a sewage tank, a pump tank, a sedimentation tank, a clean water tank, a filter press and a filter press pump, the sewage pool is connected with a light material discharge hole of a water reducing hopper of the slag treatment system; the sewage pool is communicated with the pump pool, at least one filter press pump is arranged in the pump pool, an outlet of the at least one filter press pump is connected with an inlet of the at least one filter press, and a water outlet of the filter press is connected with the clean water pool; supernatant of the sedimentation tank is conveyed to the clean water tank through a clean water pump at the upper part of the sedimentation tank; and clean water in the clean water tank is pumped into an iron beating machine, a sanding machine, a first wet separator, a second wet separator and a jigger of the slag treatment system through a water pump. No sewage is discharged in the slag treatment process, so that the environmental pollution is reduced; clear water obtained after filter pressing is circulated to front-end water consumption equipment, the water recycling efficiency is improved, purchase of new water is reduced, and energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slag plant sewage treatment, in particular to a water circulation system of a slag treatment plant. Background Art

[0002] The residues produced during the incineration process are generally inorganic substances, mainly metal oxides, hydroxides and carbonates, sulfates, phosphates and silicates. Large amounts of residues, especially those containing heavy metal compounds, can cause great harm to the environment.

[0003] like Figure 1 As shown, the slag processing procedures in the slag plant include: magnetic materials and non-magnetic materials are obtained after magnetic separation of the slag, the magnetic materials enter the iron forging machine, the iron forging machine crushes the magnetic materials, the tailings of the iron forging machine enter the 1# wet separator, the discharge of the magnetic material discharge port of the 1# wet separator is iron, the non-magnetic material discharge port of the 1# wet separator is connected to the inlet of the low-level sedimentation well, the materials in the low-level sedimentation well are pumped to the water reduction bucket by a slurry pump, and the sand discharge port at the bottom of the water reduction bucket is connected to the inlet of the dewatering screen; the non-magnetic materials enter the sand blasting machine, the sand blasting machine crushes the non-magnetic materials, the tailings of the sand blasting machine enter the 2# wet separator, and the discharge of the magnetic material discharge port of the 2# wet separator is iron. The non-magnetic material discharge port of the 2# wet separator is connected to the feed port of the jig; the sand discharge port at the bottom of the jig is connected to the feed port of the shaking table, the shaker concentrate is copper, and the tailings are transported to the low-level sand settling well, and the light material on the top of the jig enters the spiral classifier; the light material discharge port of the spiral classifier is connected to the feed port of the water reduction bucket, the heavy material discharge port of the spiral classifier is connected to the feed port of the leap screen, the fine material discharge port of the leap screen is connected to the feed port of the dewatering screen, the underside of the dewatering screen is transported to the low-level sand settling well, and the above the screen is environmentally friendly sand, the coarse material discharge port of the leap screen is connected to the feed port of the aluminum selection machine, and the two products of the aluminum selection machine are environmentally friendly sand and aluminum.

[0004] During the slag treatment process, the cleaned wastewater contains impurities and heavy metals and cannot be discharged at will; the existing treatment method is to transport the slurry from the light material outlet on the upper part of the water reduction bucket to the sewage pool for centralized disposal, which causes a large demand for new water, the sewage pool is easy to stagnate, the treatment cost is high, and the production efficiency is low. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a water circulation system for a slag treatment plant.

[0006] The utility model discloses a water circulation system of a slag treatment plant, comprising: a sewage pool, a pump pool, a sedimentation pool, a clear water pool, a filter press and a filter press pump;

[0007] The sewage pool is connected to the light material discharge port of the water reduction bucket of the slag treatment system;

[0008] The sewage pool is connected to the pump pool, at least one filter press pump is arranged in the pump pool, at least one filter press pump outlet is connected to at least one filter press inlet, and the filter press outlet is connected to the clean water pool;

[0009] The sedimentation tank is connected to the sewage tank, and the supernatant of the sedimentation tank is transported to the clean water tank through a clean water pump on the upper part of the sedimentation tank;

[0010] The clean water in the clean water tank is pumped to the iron making machine, sand making machine, No. 1 wet separator, No. 2 wet separator and jig machine of the slag treatment system through a water pump.

[0011] As a further improvement of the utility model, a water hole is provided on the upper part of the pool wall between the sedimentation pool and the sewage pool.

[0012] As a further improvement of the utility model, a slurry pump is provided at the bottom of the clean water tank, and the sludge deposited in the clean water tank is transported to the sewage tank through the slurry pump.

[0013] As a further improvement of the utility model, a new water replenishment pipe is provided on the clean water tank.

[0014] As a further improvement of the utility model, the number of the filter presses and the filter press pumps are both multiple, each of the filter press pumps is connected to all the filter presses through a pipeline, and a valve is provided on the pipeline.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model transports the ore pulp discharged from the light material discharge port on the upper part of the water reducing bucket to the sewage pool, and then transports the ore pulp in the sewage pool to the filter press through the filter press pump for filtration, and the filter press presses out the filter cake for sale, and the clean water discharged from the filter press is transported to the clean water pool, and the clean water in the clean water pool is pumped into the iron making machine, the sand making machine, the 1# wet separator, the 2# wet separator, and the jig machine for recycling; there is no external discharge, which reduces environmental pollution, improves the efficiency of water recycling, improves the quality of the working environment of workers, meets production needs, reduces production costs, reduces the purchase of new water for production, and achieves energy conservation and emission reduction;

[0017] The utility model is also provided with a sedimentation tank, which can flow the extra slurry in the sewage tank to the sedimentation tank, where the slurry is precipitated, and the upper layer of clean water is pumped into the clean water tank to achieve recycling; a time window is provided for the siltation and desilting work of the sewage tank and the filter press pump;

[0018] The utility model is provided with a slurry pump at the bottom of the clear water pool, which can transport the sludge at the bottom of the clear water pool to the sewage pool through the slurry pump. The sludge at the bottom of the pool can be removed by timing the slurry pump to clear the sludge on the daily basis, thus reducing the problem of easy clogging of old pools.

[0019] The filter press and the filter press pump of the utility model are connected in parallel through pipelines and controlled by valves, so that any filter press can be connected to any filter press pump, thereby improving work efficiency and reducing downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a flow chart of the existing slag handling system;

[0021] Figure 2 A schematic diagram of a water circulation system for a slag treatment plant disclosed in one embodiment of the utility model;

[0022] Figure 3 A top view of a sewage tank, a pump tank, a sedimentation tank and a clear water tank disclosed in an embodiment of the utility model;

[0023] Figure 4 The utility model discloses a connection diagram between a filter press and a filter press pump according to an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Sewage tank; 2. Pump tank; 3. Sedimentation tank; 4. Clean water tank; 5. Filter press; 6. Filter press pump; 7. Valve. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0030] like Figures 2-3 As shown, the utility model provides a slag treatment plant water circulation system for Figure 1 The wastewater generated in the slag treatment system shown in the figure is subjected to water circulation treatment; it comprises: a sewage pool 1, a pump pool 2, a sedimentation pool 3, a clean water pool 4, a filter press 5 and a filter press pump 6; wherein,

[0031] The sewage pool 1 of the utility model is connected to the light material discharge port of the water reducing bucket of the slag treatment system, and the slurry discharged from the light material discharge port of the water reducing bucket is transported to the sewage pool 1; a connected pump pool 2 is provided in the sewage pool 1, and at least one filter press pump 6 is provided in the pump pool 2, and the outlet of at least one filter press pump 6 is connected to the inlet of at least one filter press 5, and the outlet of the filter press 5 is connected to the clean water pool 4; the filter press 5 filters the slurry to produce filter cakes for sale; the clean water produced enters the clean water pool 4 through a pipeline (a valve can be optionally provided on the pipeline), and the conveying power of the clean water can be pumped or flowed by gravity under the action of height difference. Figure 4 As shown, an embodiment is: the number of filter presses and filter press pumps are both three, each filter press pump is connected to all filter presses through a pipeline, and six valves are provided on the pipeline, and the connection between any filter press pump and the filter press can be achieved by opening and closing the six valves; in normal use, two filter press pumps work to supply three filter presses, and the other filter press pump is on standby; that is, the valve at the outlet of the rightmost filter press pump is closed, and the remaining five valves are opened; when a filter press pump is clogged, the valve at the outlet of the clogged filter press pump can be closed, and the valve at the outlet of the standby filter press pump can be opened, thereby ensuring the normal operation of the equipment.

[0032] The sedimentation tank 3 of the utility model is adjacent to the sewage tank 1, and a water hole is provided on the upper part of the tank wall between the sedimentation tank 3 and the sewage tank 1. The arrangement of the sedimentation tank 3 allows the slurry to flow into the sedimentation tank 3 through the water hole when the slurry in the sewage tank 1 is about to be full, and self-sedimentation is performed in the sedimentation tank 3; at the same time, a clean water pump is installed above the tank wall of the sedimentation tank 3, and the outlet of the clean water pump is connected to the clean water tank 4; based on this, the supernatant of the sedimentation tank 3 can be transported to the clean water tank 4 through the clean water pump. The utility model also installs a slurry pump at the bottom of the clean water tank 4 or the lower part of the tank wall, and the outlet of the slurry pump is connected to the sewage tank 1; thus, the sludge deposited in the clean water tank 4 can be transported to the sewage tank 1 through the slurry pump, and the sludge at the bottom of the tank can be removed by the timed opening of the slurry pump, and the daily production and daily cleaning can reduce the problem of easy clogging of old pools. Furthermore, a sludge outlet is provided at the bottom of the sedimentation tank 3 to regularly clean the sludge in the sedimentation tank; alternatively, a slurry pump is also provided at the bottom of the sedimentation tank 3 , and the outlet of the slurry pump is also connected to the sewage tank 1 .

[0033] The outlet of the clean water tank 4 of the utility model is connected to the ironmaking machine, sand maker, 1# wet separator, 2# wet separator and jig of the slag treatment system through pipelines, and a water pump is arranged on the pipeline; through the arrangement of the water pump, the clean water in the clean water tank can be pumped to the ironmaking machine, sand maker, 1# wet separator, 2# wet separator and jig of the slag treatment system, and adding water to the sand maker and ironmaking machine during crushing can reduce friction, increase crushing effect, reduce energy consumption, and reduce extreme wear. Furthermore, the clean water tank 4 of the utility model is also provided with a new water replenishment pipe, which can regularly replenish clean water into the clean water tank; the new water replenishment pipe can also be directly connected to the outlet pipe of the clean water tank.

[0034] The advantages of the utility model are:

[0035] The utility model transports the ore pulp discharged from the light material discharge port on the upper part of the water reducing bucket to the sewage pool, and then transports the ore pulp in the sewage pool to the filter press through the filter press pump for filtration, and the filter press presses out the filter cake for sale, and the clean water discharged from the filter press is transported to the clean water pool, and the clean water in the clean water pool is pumped into the iron making machine, the sand making machine, the 1# wet separator, the 2# wet separator, and the jig machine for recycling; there is no external discharge, which reduces environmental pollution, improves the efficiency of water recycling, improves the quality of the working environment of workers, meets production needs, reduces production costs, reduces the purchase of new water for production, and achieves energy conservation and emission reduction;

[0036] The utility model is also provided with a sedimentation tank, which can flow the extra slurry in the sewage tank to the sedimentation tank, where the slurry is precipitated, and the upper layer of clean water is pumped into the clean water tank to achieve recycling; a time window is provided for the siltation and desilting work of the sewage tank and the filter press pump;

[0037] The utility model is provided with a slurry pump at the bottom of the clear water pool, which can transport the sludge at the bottom of the clear water pool to the sewage pool through the slurry pump. The sludge at the bottom of the pool can be removed by timing the slurry pump to clear the sludge on the daily basis, thus reducing the problem of easy clogging of old pools.

[0038] The filter press and the filter press pump of the utility model are connected in parallel through pipelines and controlled by valves, so that any filter press can be connected to any filter press pump, thereby improving work efficiency and reducing downtime.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water circulation system for a slag treatment plant, characterized in that: include: Sewage tanks, pump tanks, sedimentation tanks, clear water tanks, filter presses and filter press pumps; The sewage pool is connected to the light material discharge port of the water reduction bucket of the slag treatment system; The sewage pool is connected to the pump pool, at least one filter press pump is arranged in the pump pool, at least one filter press pump outlet is connected to at least one filter press inlet, and the filter press outlet is connected to the clean water pool; The sedimentation tank is connected to the sewage tank, and the supernatant of the sedimentation tank is transported to the clean water tank through a clean water pump on the upper part of the sedimentation tank; The clean water in the clean water tank is pumped to the iron making machine, sand making machine, No. 1 wet separator, No. 2 wet separator and jig machine of the slag treatment system through a water pump.

2. The slag treatment plant water circulation system according to claim 1, characterized in that: A water hole is arranged on the upper part of the pool wall between the sedimentation pool and the sewage pool.

3. The slag treatment plant water circulation system according to claim 1, characterized in that: A slurry pump is provided at the bottom of the clean water tank, and the sludge deposited in the clean water tank is transported to the sewage tank through the slurry pump.

4. The slag treatment plant water circulation system according to claim 1, characterized in that: A new water replenishment pipe is arranged on the clean water tank.

5. The slag treatment plant water circulation system according to claim 1, characterized in that: There are multiple filter presses and filter press pumps, and each filter press pump is connected to all the filter presses through a pipeline, and a valve is provided on the pipeline.

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