Steelmaking continuous casting cooling water filtering device

Abstract

The utility model belongs to accessory equipment in a continuous casting area of a steel plant, and particularly relates to a steelmaking continuous casting cooling water filtering device. In order to solve the problem that impurities and sludge in an existing water storage tank block a pipeline system of continuous casting cooling water, the device for filtering water with impurities flowing back to the water storage tank secondarily is designed, and the effect of purifying the water flowing back to the water storage tank is achieved. Comprising a collecting water tank located at the bottom of the continuous casting machine and used for collecting cooling water flowing down from the billet surface. A sewer pipe is arranged at the bottom of the collecting water tank and used for guiding cooling backflow water to the water storage pool. A material receiving and overturning unit is arranged between the sewer pipe and the water storage tank and comprises a material collecting hopper, a water leakage hole is formed in the bottom of the material collecting hopper, cooling water is allowed to pass through the water leakage hole, and meanwhile large-particle residues are blocked. A slag tank is arranged on one side, far away from the reservoir, of the collecting hopper; and the collecting hopper is driven by a rotary driving mechanism to rotate so as to pour the slag into the slag tank.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the steel plant continuous casting area accessory equipment especially relates to a steelmaking continuous casting cooling water filter device. BACKGROUND

[0002] In the steel production process, continuous casting process is an important link, and the stable operation of its cooling water system is directly related to the continuity of production and the quality of billets. At present, the common way of continuous casting cooling water is to extract water source from the water storage pool by the water supply pump to cool the billets. The cooled water is returned to the water storage pool through secondary reflux to form a recycling mode.

[0003] However, this recycling mode has significant drawbacks. Since the water storage pool uses circulating water as the cooling water source, a large amount of continuous casting billet scale impurities will be carried in the secondary reflux water. Over time, these impurities will gradually deposit at the bottom of the water storage pool, forming an impurity sludge layer. In order to maintain normal operation of the system, the water storage pool needs to be cleaned frequently by hand. If not cleaned in time, impurity sludge is very easy to cause blockage of the continuous casting cooling water supply pump pipeline and the nozzle. This not only interferes with the normal water supply of the cooling system, but also affects the cooling effect of the nozzle on the billets, thereby seriously affecting normal production, leading to reduced production efficiency, unstable product quality, and even causing equipment failure, increasing maintenance cost and production risk. Therefore, it is urgent to develop a technology that can effectively solve the problem of impurities in continuous casting cooling water. SUMMARY

[0004] The utility model is aimed at the defects in the prior art, and provides a steelmaking continuous casting cooling water filter device. It is designed to filter the water with impurities that is returned to the water storage pool, to realize the purification of the water returned to the water storage pool, greatly reduce the risk of continuous casting cooling system blockage, and reduce the cleaning frequency of the water storage pool.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme, a filter device for a steelmaking continuous casting cooling water system, including the water collecting groove at the bottom of the continuous casting machine, for collecting the cooling water flowing down from the surface of the billet.

[0006] The bottom of the collecting water tank is provided with a drain pipe for guiding the cooling backflow water to the water storage pool.

[0007] A material receiving and overturning unit is arranged between the drain pipe and the water storage pool, which includes a material collecting hopper provided with a water leakage hole at the bottom, allowing cooling water to pass while blocking larger particle slags, so that the slags are intercepted in the material collecting hopper.

[0008] The slag pool is arranged on the side of the collecting hopper far from the water pool.

[0009] Further, the collecting hopper comprises a sliding material channel and a hopper body connected with the sliding material channel, wherein a water leakage hole is arranged at the bottom of the hopper body, and the sliding material channel is driven to rotate by the rotating driving mechanism.

[0010] Further, the rotating driving mechanism comprises a mounting seat, a support is arranged at the top of the mounting seat, a supporting arm is rotatably connected to the support through a rotating shaft, and the supporting arm is connected with the free end of the sliding material channel.

[0011] Further, a motor is further arranged at the top of the mounting seat, a motor shaft of the motor is connected with the rotating shaft through a shaft coupling, and the rotating shaft is driven to rotate.

[0012] Further, the rotating shaft is fixedly connected with the supporting arm, and the rotating shaft can freely rotate relative to the support.

[0013] Further, the free end of the sewer pipe is located above the water pool, and the water pool is used for storing filtered cooling water.

[0014] Further, the filtering device further comprises a water inlet pipe connected to a water pump, the water pump is used for pumping water source from the water pool and supplying the spray head through a water outlet pipe, so that the cooling water can be recycled; the spray head is arranged above the continuous casting machine and used for spraying cooling water to cool the billet.

[0015] Further, the material receiving and overturning unit further comprises a limiting rod, one end of the limiting rod is fixed to the side wall of the mounting seat, and the other end of the limiting rod extends horizontally above the water pool.

[0016] Compared with the prior art, the utility model has the beneficial effects.

[0017] The utility model discloses a waste water collecting tank is arranged at the bottom of the continuous casting machine, can collect the waste water after cooling and flow back to the water pool, realizes the effective secondary collection of waste water. And, the material receiving and overturning unit is arranged at the water pool side, can realize the waste water after flowing back to filter the impurities to the collecting hopper, then regularly overturns the impurities to the impurity pool, can effectively realize waste water filtration and secondary cooling use, and can effectively guarantee the water pump and the spray head system's conveying water unobstructed. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model makes further explanation in combination with the specific embodiment and the drawing. The protection scope of the utility model is not only limited to the following content's expression.

[0019] Fig. 1 It is a kind of steelmaking continuous casting cooling water filtering device front view.

[0020] Fig. 2 It is a kind of steelmaking continuous casting cooling water filtering device receives material and overturns unit front view.

[0021] Fig. 3 It is a kind of steelmaking continuous casting cooling water filtering device receives material and overturns unit right view.

[0022] In the figure, 1, continuous casting machine;2, billet;3, spray head;4, water outlet pipe;5, water pump;6, water inlet pipe;7, collecting water tank;8, sewer;9, water storage tank;10, slag pool;11, material receiving and overturning unit;12, limiting rod;1101, mounting seat;1102, support;1103, rotating shaft;1104, coupling;1105, motor;1106, support arm;1107, material collecting hopper;1108, water leakage hole;11071, sliding material channel;11072, hopper body. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and beneficial effects of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0024] As Figs. 1-3 shown, embodiment 1: the filtering device design for the steelmaking continuous casting cooling water system aims to optimize the recycling of cooling water, improve water resource utilization rate, and ensure the quality of cooling water. It includes a collecting water tank 7 located at the bottom of the continuous casting machine, which is used to collect the cooling water flowing down from the surface of the billet. These cooling waters not only take away a lot of heat when they come into contact with the billet, but also may carry slag and other impurities generated from the billet or the surrounding environment. The design of the collecting water tank 7 takes into account the need for efficient collection and preliminary filtration. The bottom of the collecting water tank 7 is provided with a sewer 8, which guides the used cooling water to a water storage tank 9. Between the sewer 8 and the water storage tank 9, a material receiving and overturning unit 11 is provided, which includes a material collecting hopper 1107 provided with a water leakage hole 1108 at the bottom, allowing cooling water to pass through while blocking larger particles of slag, so that the slag is trapped in the material collecting hopper 1107. Considering that the slag needs to be cleaned regularly to maintain the normal operation of the system, the side of the material collecting hopper 1107 away from the water storage tank 9 is provided with a slag pool 10. When the slag in the material collecting hopper accumulates to a certain amount, a rotating drive mechanism is used to tilt the material collecting hopper, thereby dumping the slag into the slag pool 10. This process realizes effective management and disposal of the slag, reduces the need for manual intervention, and improves the automation level of the system. Specifically, the material collecting hopper 1107 is rotated by a rotating drive mechanism to realize the dumping of the slag into the slag pool 10.

[0025] The embodiment 2, the aggregate hopper 1107 comprises a sliding material channel 11071 and a hopper body 11072 connected therewith, wherein the bottom of the hopper body 11072 is provided with a water leakage hole 1108, and the sliding material channel 11071 is driven to rotate by a rotating driving mechanism. The rotating driving mechanism comprises a mounting seat 1101, the top of the mounting seat 1101 is provided with a support 1102, a supporting arm 1106 is rotatably connected to the support 1102 through a rotating shaft 1103, and the supporting arm 1106 is connected to the free end of the sliding material channel 11071. A motor 1105 is also mounted on the top of the mounting seat 1101, the motor shaft of the motor 1105 is connected to the rotating shaft 1103 through a shaft coupling 1104, and the rotating shaft 1103 is driven to rotate. The rotating shaft 1103 is fixedly connected to the supporting arm 1106, and the rotating shaft 1103 can freely rotate relative to the support 1102. Specifically, when the slag in the aggregate hopper accumulates to a certain amount, the control system starts the motor 1105, and the motor transmits power to the rotating shaft 1103 through the shaft coupling 1104. With the rotation of the rotating shaft 1103, the supporting arm 1106 fixedly connected thereto rotates, thereby driving the sliding material channel 11071 to tilt or overturn. This process realizes the automatic dumping of the slag, so that the slag falls into the slag pool, and then the system returns to the original position, preparing for the next process of collecting slag.

[0026] The embodiment 3, the filtering device further comprises a water inlet pipe 6 connected to a water pump 5, the water pump 5 is used for pumping water from a water storage tank and supplying the water to the spray head 3 through a water outlet pipe, so as to realize the recycling use of the cooling water; the spray head 3 is installed above the continuous casting machine and is used for spraying cooling water to cool the billet.

[0027] The embodiment 4, the material receiving and overturning unit 11 further comprises a limiting rod 12, one end of the limiting rod 12 is fixed to the side wall of the mounting seat 1101, and the other end of the limiting rod 12 extends horizontally to above the water storage tank. When the aggregate hopper 1107 is driven to rotate by the rotating driving mechanism, with the rotation of the rotating shaft 1103 and the supporting arm 1106, the sliding material channel 11071 also tilts or overturns. At this time, if the aggregate hopper reaches the preset maximum dumping angle, the limiting rod 12 will contact the aggregate hopper, preventing further rotation. This ensures that the aggregate hopper will not be excessively overturned due to the continuous action of the motor 1105, protecting the mechanical structure of the whole system from damage. In addition, the presence of the limiting rod 12 also allows the operator to set the automatic dumping period with confidence, without worrying about accidents or damage caused by out-of-control equipment. This design greatly improves the operation safety and reliability of the material receiving and overturning unit 11, reduces the need for manual intervention, and enhances the overall automation level of the steelmaking and continuous casting cooling water system.

[0028] The use process of the utility model is described in combination with the drawings and technical solutions:

[0029] 1. In the production process of continuous casting machine, the billets are conveyed out from the outlet of the continuous casting machine, and the spray head sprays cooling water onto the billets for cooling.

[0030] 2. The cooling water flows down from the surface of the billets, gathers in the collecting tank, and then flows into the collecting hopper of the water storage tank through the drain pipe of the collecting tank, and the collecting tank is installed at the bottom of the equipment to receive the cooling water.

[0031] 3. The bottom of the collecting hopper is provided with a water leakage hole, which can filter the cooling backflow water flowing into the drain pipe, so that the iron oxide scale and slag in the water are filtered by the collecting hopper, the slag is left in the collecting hopper, and the slag-free water after filtration flows into the water storage tank through the water leakage hole.

[0032] 4. The water pump sucks water source from the water storage tank through the water inlet pipe, and then supplies water to the spray head through the water outlet pipe for billet cooling.

[0033] 5. When the slag in the collecting hopper stays for a certain period of time, the motor is started to drive the rotating shaft to rotate clockwise by a certain angle, the rotating shaft drives the supporting arm, and the supporting arm drives the collecting hopper to overturn by a certain angle, so that the impurities slide from the collecting hopper to the slag pool.

[0034] 6. The slag pool needs to be cleaned regularly by manual.

[0035] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "preferred embodiment", "specific embodiment", or "preferred embodiment" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced by equivalents; therefore, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope defined by the claims of the present application.

Claims

1. A steelmaking continuous casting cooling water filtering device characterized by, The collecting tank (7) is provided with a drain pipe (8) at the bottom for guiding the cooling backflow water to a water storage pool (9). The drain pipe (8) is provided with a receiving and overturning unit (11) between the drain pipe (8) and the water storage pool (9), the receiving and overturning unit (11) comprises a collecting hopper (1107) provided with a water leakage hole (1108) at the bottom to allow the cooling water to pass through while blocking the slag, so that the slag is intercepted in the collecting hopper (1107). The collecting hopper (1107) is provided with a slag pool (10) on the side away from the water storage pool (9), and the collecting hopper (1107) is driven to rotate by a rotating drive mechanism to realize the overturning of the slag into the slag pool (10). The collecting hopper (1107) comprises a sliding material channel (11071) and a hopper body (11072) in communication with the sliding material channel (11071), wherein the hopper body (11072) is provided with a water leakage hole (1108) at the bottom, and the sliding material channel (11071) is driven to rotate by the rotating drive mechanism.

2. The steel-making continuous casting cooling water filtering device according to claim 1, characterized by, The rotating drive mechanism comprises a mounting seat (1101) provided with a support (1102) at the top, and a support arm (1106) is rotatably connected to the support (1102) through a rotating shaft (1103), and the support arm (1106) is connected to the free end of the sliding material channel (11071).

3. The steel-making continuous casting cooling water filtering device according to claim 2, characterized by, The mounting seat (1101) is further provided with a motor (1105) at the top, and the motor shaft of the motor (1105) is connected to the rotating shaft (1103) through a shaft coupling (1104) to drive the rotating shaft (1103) to rotate.

4. The steel-making continuous casting cooling water filtering device according to claim 3, characterized by, The rotating shaft (1103) is fixedly connected to the support arm (1106), and the rotating shaft (1103) can freely rotate relative to the support (1102).

5. The steelmaking continuous casting cooling water filtering device according to claim 3 or 4, characterized by, The free end of the drain pipe (8) is located above the water storage pool (9), and the water storage pool (9) is used for storing filtered cooling water.

6. The steel-making continuous casting cooling water filtering device according to claim 1, characterized by, The filtering device further comprises a water inlet pipe (6) connected to a water pump (5), the water pump (5) is used for pumping water from the water storage pool and supplying the spray head (3) through a water outlet pipe to realize the recycling of the cooling water; the spray head (3) is installed above the continuous casting machine for spraying cooling water to cool the billet.

7. The steel-making continuous casting cooling water filtering device according to claim 1, characterized by, The receiving and overturning unit (11) further comprises a limiting rod (12), one end of the limiting rod (12) is fixed to the side wall of the mounting seat (1101), and the other end of the limiting rod (12) extends horizontally above the water storage pool.

8. The steel-making continuous casting cooling water filtering device according to claim 3, characterized by, ​

Images