A water breaking control method for a steelmaking slag crusher

Abstract

This invention discloses a water control method for a steelmaking slag crusher, comprising the following steps: (1) First, symmetrical through-beam photoelectric switches are installed on the north and south sides of the roller crusher; (2) Initialize the program, then start dumping slag, and determine whether the tilt angle of the slag pot is greater than 160°; (3) Then determine whether the position of the roller crusher is located at the through-beam photoelectric switch on the north side, and then ensure that the roller crusher can move completely from north to south through position verification; (4) Set the duration of water injection for each stroke, and set the water injection threshold for the single stroke allowed by the slag quality; (5) Then the roller crusher moves back and forth between the two through-beam photoelectric switches twice in a "three-roll and one-push" operation process, and then performs four crushing operations. This invention ensures the rationality of the water injection process, allowing operators to inject water according to the standard and quantity during the operation of the roller crusher, preventing safety and equipment accidents caused by misoperation, and reducing costs and increasing efficiency.

Description

Technical Field

[0001] This invention relates to the field of steelmaking technology, and specifically to a method for controlling water injection in a steelmaking slag crusher. Background Technology

[0002] The slag produced in steelmaking furnaces needs to be crushed in a roller crusher, and cooling and water injection are required during crushing. However, operators have difficulty controlling the amount of water injected. Too much water could easily cause an explosion; too little water would not cool the slag sufficiently, requiring more crushing cycles and increasing costs. Therefore, how to inject water precisely during roller crushing has become a pressing problem that needs to be solved. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a water control method for a steelmaking slag crusher, which ensures the rationality of water injection in the process, allows operators to inject water according to the standard and amount during the operation of the roller crusher, thereby preventing safety and equipment accidents caused by misoperation, and reducing costs and increasing efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The innovative aspect of the present invention's method for controlling water injection in a steelmaking slag crusher lies in including the following steps: (1) First, through-beam photoelectric switches are symmetrically installed on the north and south sides of the roller crusher; (2) Initialize the program, then start pouring the slag, and determine whether the tilt angle of the slag pot is greater than 160°; In the above steps, if the tilt angle of the slag pot is ≤160°, the roller crusher will return to its initial position, i.e., the north-facing photoelectric switch; if the tilt angle of the slag pot is >160°, proceed to the next step. (3) Then determine whether the position of the roller crusher is located at the north-facing photoelectric switch, and then ensure that the roller crusher can move completely from north to south through position verification; (4) Set the duration of a single water injection and set the threshold of water injection volume allowed for a single injection based on the slag quality; In the above steps, the duration of a single water dispensing session is set to 5 minutes and timed using a timer to ensure that the duration of a single water dispensing session meets safety regulations. In the above steps, the slag mass is obtained by the overhead crane weighing sensor. When the slag mass is ≤10 tons, the water volume threshold for single-trip water injection is set to 5 cubic meters; and when the slag mass is >10 tons, the water volume threshold for single-trip water injection is set to 7 cubic meters. (5) Then the roller crusher moves back and forth twice between the two photoelectric switches in the "three rolls and one push" operation process, and then performs four crushing operations. Water is not allowed during the first crushing operation, water is allowed during the second crushing operation, water is allowed during the third crushing operation, and water is not allowed during the fourth crushing operation. In the above steps, the "three-roller-one-push" operation process of the roller crusher is as follows: (5.1) First, the roller crusher runs from north to south to the photoelectric switch on the south side, and then carries out the first crushing operation. Water is not allowed during this process. (5.2) Then the roller crusher runs from south to north to the photoelectric switch on the north side, and then performs the second crushing operation. Water is allowed during this process, and the total amount of water applied during this process is ensured not to exceed the set water application threshold. The operator determines the number of times water is applied during the second crushing operation, and each water application lasts for 5 minutes, ensuring that the total amount of water applied during the second crushing operation is controlled within the set water application threshold. (5.3) Then the roller crusher runs from north to south to the photoelectric switch on the south side, and then performs the third crushing operation. Water is allowed during this process, and the total amount of water applied during this process is ensured not to exceed the set water application threshold. The operator determines the number of times water is applied during the third crushing operation, and each water application lasts for 5 minutes, ensuring that the total amount of water applied during the third crushing operation is controlled within the set water application threshold. (5.4) Then the roller crusher runs from south to north to the photoelectric switch on the north side, and then performs the fourth crushing operation. Water is not allowed during this process.

[0005] Preferably, in step (1) above, the installation positions of the two through-beam photoelectric switches must ensure that the traveling position of the roller crusher is within its range, and that its signal is stable and reliable.

[0006] Preferably, in step (3) above, if the position check determines that the roller crusher is not at the north-facing photoelectric switch, the roller crusher returns to its initial position, i.e., at the north-facing photoelectric switch; if the position check determines that the roller crusher is at the north-facing photoelectric switch, the next step can be executed.

[0007] The beneficial effects of this invention are: (1) This invention ensures the rationality of water spraying in the process, allowing operators to spray water according to the standard and quantity during the operation of the roller press, thereby preventing safety and equipment accidents caused by misoperation, and reducing costs and increasing efficiency; (2) This invention standardizes the operator's standardization of the crushing process, ensuring that the operator must reach the installation position of the through-beam photoelectric switch every time the operation is carried out; (3) The present invention can monitor various aspects through equipment detection and operation, and operators only need to retain manual decision-making, thereby reducing the labor intensity of operators. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of a water control method for a steelmaking slag crusher according to the present invention. Detailed Implementation

[0009] The technical solution of the present invention will be clearly and completely described below through specific embodiments.

[0010] The present invention provides a water control method for a steelmaking slag crusher, such as... Figure 1 As shown, it includes the following steps: (1) First, through-beam photoelectric switches are symmetrically installed on the north and south sides of the roller crusher; In the above steps, both of the through-beam photoelectric switches are model V2R-1200CDP, and their installation positions must ensure that the travel position of the roller crusher is within their range, and that their signals are stable and reliable.

[0011] This invention achieves hard limiting of the moving endpoint by setting up a through-beam photoelectric switch to form a spatial positioning closed loop.

[0012] (2) Initialize the program, then start pouring the slag, and determine whether the tilt angle of the slag pot is greater than 160°; In the above steps, if the tilt angle of the slag pot is ≤160°, the roller crusher will return to its initial position, i.e., the north-facing photoelectric switch; if the tilt angle of the slag pot is >160°, the next step will be executed.

[0013] (3) Then determine whether the position of the roller crusher is located at the north-facing photoelectric switch, and then ensure that the roller crusher can move completely from north to south through position verification; In the above steps, if the position check determines that the roller crusher is not at the north-facing photoelectric switch, the roller crusher will return to its initial position, i.e., at the north-facing photoelectric switch; if the position check determines that the roller crusher is at the north-facing photoelectric switch, the next step can be executed.

[0014] (4) Set the duration of a single water injection and set the threshold of water injection volume allowed for a single injection based on the slag quality; In the above steps, the duration of each water dispensing session is set to 5 minutes and timed using a timer to ensure that the duration of each water dispensing session meets safety regulations.

[0015] In the above steps, the slag mass is obtained by the overhead crane weighing sensor. When the slag mass is ≤10 tons, the water volume threshold for single-trip water injection is set to 5 cubic meters; and when the slag mass is >10 tons, the water volume threshold for single-trip water injection is set to 7 cubic meters.

[0016] (5) Then the roller crusher moves back and forth between the two photoelectric switches twice in the "three rolls and one push" operation process, and then performs four crushing operations. Water is not allowed during the first crushing operation, water is allowed during the second crushing operation, water is allowed during the third crushing operation, and water is not allowed during the fourth crushing operation.

[0017] In the above steps, the "three-roller-one-push" operation process of the roller crusher is as follows: (5.1) First, the roller crusher runs from north to south to the photoelectric switch on the south side, and then carries out the first crushing operation. Water is not allowed during this process.

[0018] (5.2) Then the roller crusher runs from south to north to the photoelectric switch on the north side, and then performs the second crushing operation. Water is allowed during this process, and the total amount of water applied during this process is ensured not to exceed the set water application threshold. The operator determines the number of times water is applied during the second crushing operation, with each application lasting 5 minutes, and ensures that the total amount of water applied during the second crushing operation is controlled within the set water application threshold.

[0019] (5.3) Then the roller crusher runs from north to south to the photoelectric switch on the south side, and then performs the third crushing operation. Water is allowed during this process, and the total amount of water applied during this process is ensured not to exceed the set water application threshold. The operator determines the number of times water is applied during the third crushing operation, with each application lasting 5 minutes, and ensures that the total amount of water applied during the third crushing operation is controlled within the set water application threshold.

[0020] (5.4) Then the roller crusher runs from south to north to the photoelectric switch on the north side, and then performs the fourth crushing operation. Water is not allowed during this process.

[0021] This invention determines the duration of a single 5-minute water dispensing cycle independently of the water volume, thus forming a double-insurance mechanism that can be determined by the operator based on changes in actual working conditions.

[0022] The beneficial effects of this invention are: (1) This invention ensures the rationality of water spraying in the process, allowing operators to spray water according to the standard and quantity during the operation of the roller press, thereby preventing safety and equipment accidents caused by misoperation, and reducing costs and increasing efficiency; (2) This invention standardizes the operator's standardization of the crushing process, ensuring that the operator must reach the installation position of the through-beam photoelectric switch every time the operation is carried out; (3) The present invention can monitor various aspects through equipment detection and operation, and operators only need to retain manual decision-making, thereby reducing the labor intensity of operators.

[0023] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, all modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the technical requirements.

Claims

1. A method for controlling water injection in a steelmaking slag crusher, characterized in that... Includes the following steps: (1) First, through-beam photoelectric switches are symmetrically installed on the north and south sides of the roller crusher; (2) Initialize the program, then start pouring the slag, and determine whether the tilt angle of the slag pot is greater than 160°; In the above steps, if the tilt angle of the slag pot is ≤160°, the roller crusher will return to its initial position, i.e., the north-facing photoelectric switch; if the tilt angle of the slag pot is >160°, proceed to the next step. (3) Then determine whether the position of the roller crusher is located at the north-facing photoelectric switch, and then ensure that the roller crusher can move completely from north to south through position verification; (4) Set the duration of a single water injection and set the threshold of water injection volume allowed for a single injection based on the slag quality; In the above steps, the duration of a single water dispensing session is set to 5 minutes and timed using a timer to ensure that the duration of a single water dispensing session meets safety regulations. In the above steps, the slag mass is obtained by the overhead crane weighing sensor. When the slag mass is ≤10 tons, the water volume threshold for single-trip water injection is set to 5 cubic meters; and when the slag mass is >10 tons, the water volume threshold for single-trip water injection is set to 7 cubic meters. (5) Then the roller crusher moves back and forth twice between the two photoelectric switches in the "three rolls and one push" operation process, and then performs four crushing operations. Water is not allowed during the first crushing operation, water is allowed during the second crushing operation, water is allowed during the third crushing operation, and water is not allowed during the fourth crushing operation. In the above steps, the "three rollers and one push" operation process of the roller crusher is as follows: (5.1) First, the roller crusher runs from north to south to the photoelectric switch on the south side, and then carries out the first crushing operation. Water is not allowed during this process. (5.2) Then the roller crusher runs from south to north to the photoelectric switch on the north side, and then performs the second crushing operation. Water is allowed during this process, and the total amount of water applied during this process is ensured not to exceed the set water application threshold. The operator determines the number of times water is applied during the second crushing operation, and each water application lasts for 5 minutes, ensuring that the total amount of water applied during the second crushing operation is controlled within the set water application threshold. (5.3) Then the roller crusher runs from north to south to the photoelectric switch on the south side, and then performs the third crushing operation. Water is allowed during this process, and the total amount of water applied during this process is ensured not to exceed the set water application threshold. The operator determines the number of times water is applied during the third crushing operation, and each water application lasts for 5 minutes, ensuring that the total amount of water applied during the third crushing operation is controlled within the set water application threshold. (5.4) Then the roller crusher runs from south to north to the photoelectric switch on the north side, and then performs the fourth crushing operation. Water is not allowed during this process.

2. The water injection control method for a steelmaking slag crusher according to claim 1, characterized in that: In step (1) above, the installation positions of the two through-beam photoelectric switches must ensure that the travel position of the roller crusher is within its range, and that its signal is stable and reliable.

3. The water injection control method for a steelmaking slag crusher according to claim 1, characterized in that: In step (3) above, if the position check determines that the roller crusher is not at the north-facing photoelectric switch, the roller crusher returns to its initial position, i.e., at the north-facing photoelectric switch; if the position check determines that the roller crusher is at the north-facing photoelectric switch, the next step can be executed.

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