Automatic chemical feeding device of hot rolling heating furnace

Abstract

The utility model provides an automatic chemical feeding device for a hot rolling heating furnace, which is used for feeding chemicals to the hot rolling heating furnace and comprises a chemical storage hopper used for storing chemicals and connected with the heating furnace through a channel; the partition bin is arranged in the channel and is used for limiting the amount of medicine passing through the partition bin; the agent stirrer is used for stirring the hot rolling heating furnace; the water replenishing valve correspondingly replenishes water or stops water replenishing according to the liquid level height, detected by the water level gauge, of the hot rolling heating furnace. The automatic chemical feeding device of the hot rolling heating furnace can automatically feed chemicals.

Description

Technical Field

[0001] The present application relates to a hot rolling heating furnace, and in particular to an automatic dosing device for the hot rolling heating furnace. Background Art

[0002] The steel rolling production workshop has high requirements for the water quality of the heating furnace. Trisodium phosphate needs to be added to the furnace reinforcement pipe of the gasification furnace to ensure that the water quality is alkaline. Once the water quality indicators fluctuate greatly, it will bring safety risks to the operation of the heating furnace. Therefore, water samples need to be checked regularly, and reagents are added in proportion based on the analysis of the sampled water quality. If reagents are placed on site, it does not comply with the workshop's 6S and environmental protection management.

[0003] In the existing technology, CN 110465236 A discloses an intelligent system for vaporizing, cooling and dosing a heating furnace, including a dissolving and diluting tank, a medicine liquid storage tank, a soft water tank, a proportioning tank and a plurality of heating furnaces. A liquid inlet pipe 1 and a water inlet pipe 1 are provided on the top of the dissolving and diluting tank. The dissolving and diluting tank is connected to the medicine liquid storage tank through the liquid inlet pipe 1. The dissolving and diluting tank is connected to the soft water tank through the water inlet pipe 1. A liquid outlet pipe 1 is provided on the bottom of the dissolving and diluting tank. A liquid concentration sensor is provided on the liquid outlet pipe 1. The dissolving and diluting tank is respectively connected to the proportioning tank and a plurality of heating furnaces through the liquid outlet pipe 1. A liquid inlet pipe 2 and a water inlet pipe 2 are provided on the top of the proportioning tank. The proportioning tank is respectively connected to the liquid outlet pipe 1 and the bottom of the medicine liquid storage tank through the liquid inlet pipe 2. The proportioning tank is connected to the soft water tank through the water inlet pipe 2. A liquid outlet pipe 2 is provided on the bottom of the proportioning tank. The proportioning tank is respectively connected to the plurality of heating furnaces through the liquid outlet pipe 2.

[0004] Although this design can automatically add medicine, its structure is complicated and requires the design of precision equipment such as proportioning tanks, sensors, metering pumps, etc., resulting in high design costs. Especially for existing heating furnaces, large-scale transformation is required. Summary of the invention

[0005] In view of this, it is necessary to provide a simple-structured automatic dosing device for a hot rolling heating furnace to achieve automatic dosing.

[0006] An automatic dosing device for a hot rolling heating furnace, used for adding chemicals to the hot rolling heating furnace, comprising:

[0007] A medicine storage hopper is used to store medicine and is connected to the heating furnace through a channel;

[0008] A compartment, provided in the passage, for limiting the amount of medicine passing therethrough;

[0009] A reagent mixer is used to stir the hot rolling heating furnace;

[0010] The water supply valve replenishes or stops water supply according to the liquid level height of the hot rolling heating furnace detected by the water level gauge.

[0011] Furthermore, the partition chamber includes a first partition chamber valve and a second partition chamber valve, and the first partition chamber valve and the second partition chamber valve are surrounded by the channel wall to form a closed space, and the first partition chamber valve is closer to the medicine storage hopper than the second partition chamber valve; when the first partition chamber valve is opened and the second partition chamber valve is closed, the medicine storage hopper injects medicine into the partition chamber; when the first partition chamber valve is closed and the second partition chamber valve is opened, the partition chamber injects medicine into the hot rolling heating furnace.

[0012] Furthermore, the first compartment valve and the second compartment valve are respectively opened and closed by cylinder control.

[0013] Furthermore, the medicine storage hopper is located at the top of the hot rolling heating furnace, and the automatic medicine adding device of the hot rolling heating furnace also includes a ladder track and a medicine placing hopper; the two ends of the ladder track are respectively located at the medicine storage hopper and the bottom surface; the medicine placing hopper is movably arranged on the ladder track for receiving the medicine from the bottom surface and transferring it to the medicine storage hopper.

[0014] Furthermore, the automatic dosing device for the hot rolling heating furnace also includes a drug detector, which is used to detect the concentration of the drug in the hot rolling heating furnace. When the concentration of the drug is lower than the set value, the drug is added through the compartment.

[0015] Beneficial effects: The present application adds medicine to the heating furnace through the medicine storage hopper. By adding a compartment on the channel, quantitative addition of medicine can be achieved. The compartment is formed by the first compartment valve and the second compartment valve around the channel wall, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic block diagram of an automatic dosing device for a hot rolling heating furnace according to an embodiment of the utility model.

[0017] In the figure: 1. Ladder track; 2. Medicine placing hopper; 3. Partition; 4. Medicine receiving and storage hopper; 5. Medicine mixer; 6. Water supply pneumatic valve; 7. Water level meter; 8. Control panel; 9. Partition cylinder. DETAILED DESCRIPTION

[0018] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0019] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0020] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0021] See also Figure 1 The utility model provides an automatic dosing device for a hot rolling heating furnace, which is used to add chemicals to the hot rolling heating furnace, including:

[0022] A medicine receiving storage hopper 4 is used to store medicine and is connected to the heating furnace through a channel;

[0023] A compartment 3, provided in the passage, for limiting the amount of medicine passing therethrough;

[0024] A reagent mixer 5, used for stirring the hot rolling heating furnace;

[0025] The water supply pneumatic valve 6 supplies water or stops supplying water according to the liquid level height of the hot rolling heating furnace detected by the water level meter 7.

[0026] Furthermore, the compartment 3 includes a first compartment valve and a second compartment valve, and the first compartment valve and the second compartment valve are surrounded by the channel wall to form a closed space, and the first compartment valve is closer to the medicine receiving and storage hopper 4 than the second compartment valve; when the first compartment valve is opened and the second compartment valve is closed, the medicine receiving and storage hopper 4 injects medicine into the compartment 3; when the first compartment valve is closed and the second compartment valve is opened, the compartment 3 injects medicine into the hot rolling heating furnace.

[0027] Furthermore, the first compartment valve and the second compartment valve are respectively controlled to open and close by the compartment cylinder 9 .

[0028] Furthermore, the medicine receiving and storage hopper 4 is located at the top of the hot rolling heating furnace, and the automatic medicine adding device of the hot rolling heating furnace also includes a ladder track 1 and a medicine placing hopper 2; the two ends of the ladder track 1 are respectively located at the medicine storage hopper 2 and the bottom surface; the medicine placing hopper 2 is movably arranged on the ladder track 1 for receiving the medicine from the bottom surface and transferring it to the medicine receiving and storage hopper 4.

[0029] Furthermore, the automatic dosing device for the hot rolling heating furnace also includes a drug detector, which is used to detect the concentration of the drug in the hot rolling heating furnace. When the concentration of the drug is lower than the set value, the drug is added through the compartment.

[0030] The automatic dosing device for the hot rolling heating furnace is also provided with a PLC and a control panel 8 for manual control.

[0031] When the automatic dosing device for hot rolling heating furnace is used: the medicine is put into the hopper 2 through the hand operator and transferred to the medicine receiving storage hopper 4 through the ladder track 1, which is convenient for dosing, and a partition 3 is made in the middle to ensure that the amount of each filling is constant;

[0032] Two compartment cylinders 9 are used to control the dosage. In the first action, the first compartment valve near the medicine receiving and storing hopper 4 is opened first, and the cylinder is closed after the medicine is put down, so that the medicine enters the compartment, and then the second compartment valve is opened, and the medicine enters the medicine barrel of the heating furnace;

[0033] 3. When the water level meter 7 detects that the water level in the medicine barrel of the heating furnace reaches a low level, the water supply pneumatic valve 6 is automatically opened to supply water to the medicine barrel. When the water level reaches a high level, the water supply pneumatic valve 6 is automatically closed to stop supplying water.

[0034] 4. Add dosing and water replenishment control procedures to the instrument room PLC to adjust the dosage according to water quality requirements.

[0035] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not intended to limit the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. An automatic dosing device for a hot rolling heating furnace, used for adding chemicals to a hot rolling heating furnace, characterized in that: include: A medicine storage hopper is used to store medicine and is connected to the heating furnace through a channel; A compartment, provided in the passage, for limiting the amount of medicine passing therethrough; A reagent mixer is used to stir the hot rolling heating furnace; The water supply valve replenishes or stops water supply according to the liquid level height of the hot rolling heating furnace detected by the water level gauge.

2. The automatic dosing device for hot rolling heating furnace according to claim 1, characterized in that: The partition chamber includes a first partition chamber valve and a second partition chamber valve, which are surrounded by a channel wall to form a closed space, and the first partition chamber valve is closer to the medicine storage hopper than the second partition chamber valve; when the first partition chamber valve is opened and the second partition chamber valve is closed, the medicine storage hopper injects medicine into the partition chamber; when the first partition chamber valve is closed and the second partition chamber valve is opened, the partition chamber injects medicine into the hot rolling heating furnace.

3. The automatic dosing device for hot rolling heating furnace according to claim 2, characterized in that: The first compartment valve and the second compartment valve are respectively controlled to open and close by cylinders.

4. The automatic dosing device for hot rolling heating furnace according to claim 1, characterized in that: The medicine storage hopper is located at the top of the hot rolling heating furnace, and the automatic medicine adding device of the hot rolling heating furnace also includes a ladder track and a medicine placing hopper; the two ends of the ladder track are respectively located at the medicine storage hopper and the bottom surface; the medicine placing hopper is movably arranged on the ladder track for receiving the medicine from the bottom surface and transferring it to the medicine storage hopper.

5. The automatic dosing device for hot rolling heating furnace according to claim 1, characterized in that: The automatic dosing device for the hot rolling heating furnace also includes a drug detector, which is used to detect the concentration of the drug in the hot rolling heating furnace. When the concentration of the drug is lower than the set value, the drug is added through the compartment.

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