A device for automatically adjusting water quantity and preheating water temperature for a mixer

Abstract

This utility model relates to the field of mixing technology in sintering plants, and provides a device for automatically adjusting the water supply and preheating the water temperature in a mixer. It includes a preheating water tank, a direct water tank, a heating system, and a control system. The heating system is located inside the preheating water tank and the direct water tank. An upper electric valve connected to the direct water tank is located on the lower side of one end of the preheating water tank. An upper steam heating pipe is horizontally installed inside the preheating water tank. An upper electric steam inlet valve and an upper electric steam outlet valve are installed at the steam inlet and outlet ends of the upper steam heating pipe. An upper electric water inlet valve and a maintenance port are located on the upper side. Water temperature and level detectors A and B for the preheating water tank are installed on the side wall. A lower steam heating pipe is horizontally installed inside the direct water tank. A lower electric steam inlet valve and a lower electric steam outlet valve are installed at the steam inlet and outlet ends of the lower steam heating pipe. Water temperature and level detectors A and B for the direct water tank and a water supply valve are installed on the side wall. The control system includes an automatic water supply control system, a valve opening and closing control system, and a humidity sensor at the mixer's feed inlet.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology in sintering plants, and in particular to a device suitable for automatically adjusting the amount of water added and preheating the water temperature in a mixing machine. Background Technology

[0002] In the production process of a sintering plant, the mixing stage is crucial. The moisture content of the raw materials has a significant impact on the quality of the sinter; too much or too little moisture can lead to problems in the sintering process, such as decreased permeability and insufficient strength of the sinter. Currently, many sintering plants rely mainly on manual experience to control the amount of water added during mixing. This method makes it difficult to accurately control the amount of water added, resulting in unstable mixing quality.

[0003] Meanwhile, water temperature also has a certain impact on the mixing effect, especially in winter, when lower water temperatures may affect the uniformity of material mixing and the progress of chemical reactions. However, existing mixing equipment often lacks measures for preheating the water. Utility Model Content

[0004] The main objective of this invention is to provide a device for automatically adjusting the water addition and preheating the water temperature in a mixing machine, so as to effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a device for automatically adjusting the water addition and preheating the water temperature of a mixing machine, comprising a preheating water tank, a direct water tank, a heating system, and a control system. The heating system is installed inside the preheating water tank and the direct water tank, with the preheating water tank on the upper side and the direct water tank on the lower side. An upper electric valve is provided on the lower side of one end of the preheating water tank, which is connected to the direct water tank.

[0006] Preferably, the preheating water tank has an upper steam heating pipe of the heating system horizontally arranged inside. The upper steam heating pipe has an upper electric steam inlet valve at the steam inlet end and an upper electric steam outlet valve at the steam outlet end. An upper electric water inlet valve and an inspection port are arranged on the upper side of the preheating water tank. A preheating water tank temperature and level detector A is arranged on the upper part of the side wall away from the upper electric steam inlet valve, and a preheating water tank temperature and level detector B is arranged on the lower part.

[0007] Preferably, the direct water tank has a horizontally arranged lower steam heating pipe of the heating system. The lower steam heating pipe has a lower electric steam inlet valve at the steam inlet end and a lower electric steam outlet valve at the steam outlet end. The upper part of the side wall of the direct water tank away from the lower electric steam inlet valve is equipped with a direct water tank water temperature and level detector A, and the lower part is equipped with a direct water tank water temperature and level detector B and a water supply valve.

[0008] Preferably, the control system includes an automatic water filling control system and a valve opening and closing control system.

[0009] Preferably, the automatic water addition control system includes a high-precision humidity sensor (not shown in the figure) installed at the feed inlet of the mixer. The humidity sensor can detect the humidity of the raw materials entering the mixer in real time. The automatic water addition control system compares the actual humidity value with the preset standard value, calculates the amount of water to be added through the water addition calculation model, and controls the opening and closing of the water supply valve, thereby controlling the humidity of the raw materials.

[0010] Preferably, the valve opening and closing control system controls the opening size of the upper electric steam inlet valve, upper electric steam outlet valve, lower electric steam inlet valve, and lower electric steam outlet valve respectively based on the feedback data from the preheating water tank temperature and level detector A, the preheating water tank temperature and level detector B, the direct water tank temperature and level detector A, and the direct water tank temperature and level detector B, so as to control the water temperature in the preheating water tank and the direct water tank; at the same time, it controls the opening and closing of the upper electric inlet valve and the upper electric valve to control the water level.

[0011] The beneficial effects of this utility model are: automatic and precise control of the amount of water added, so that the moisture content of the raw materials after mixing is kept within a suitable range, avoiding adverse effects on the sintering process due to excessive or insufficient moisture, thereby improving the quality and strength of the sintered ore. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Appendix Figure 1 In the middle, there are: preheating water tank 1-1, direct water tank 1-2, upper electric inlet valve 2-1, upper electric valve 2-2, water supply valve 2-3, upper electric steam inlet valve 3-1, upper electric steam outlet valve 3-2, lower electric steam inlet valve 3-3, lower electric steam outlet valve 3-4, inspection port 4, preheating water tank temperature and level detector A5-1, preheating water tank temperature and level detector B5-2, direct water tank temperature and level detector A5-3, direct water tank temperature and level detector B5-4, upper steam heating pipe 6, and lower steam heating pipe 7. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Appendix Figure 1As shown, a device for automatically adjusting the water addition and preheating the water temperature of a mixing machine includes a preheating water tank 1-1, a direct water tank 1-2, and a heating system. The heating system is installed inside the preheating water tank 1-1 and the direct water tank 1-2. An upper electric valve 2-2 is provided on the lower side of one end of the preheating water tank 1-1 and is connected to the direct water tank 1-2.

[0016] The preheating water tank 1-1 is equipped with an upper steam heating pipe 6 horizontally. The upper steam heating pipe 6 has an upper electric steam inlet valve 3-1 at the inlet end and an upper electric steam outlet valve 3-2 at the outlet end. The upper electric water inlet valve 2-1 and the inspection port 4 are located on the upper side of the preheating water tank 1-1. The water temperature and level detector A5-1 of the preheating water tank is located on the upper part of the side wall away from the upper electric steam inlet valve 3-1, and the water temperature and level detector B5-2 of the preheating water tank is located on the lower part.

[0017] The direct water tank 1-2 is equipped with a lower steam heating pipe 7 horizontally. The lower steam heating pipe 7 has a lower electric steam inlet valve 3-3 at the inlet end and a lower electric steam outlet valve 3-4 at the outlet end. The direct water tank 1-2 is equipped with a direct water tank water temperature and level detector A5-3 on the upper part of the side wall away from the lower electric steam inlet valve 3-3, and a direct water tank water temperature and level detector B5-4 and a water supply valve 2-3 are installed on the lower part.

[0018] The control system includes an automatic water filling control system and a valve opening and closing control system.

[0019] The automatic water addition control system includes a high-precision humidity sensor (not shown in the figure) installed at the feed inlet of the mixer. The humidity sensor can detect the humidity of the raw materials entering the mixer in real time. The automatic water addition control system compares the actual humidity value with the preset standard value, calculates the amount of water to be added through the water addition calculation model, and controls the opening and closing of the water supply valves 2-3, thereby controlling the humidity of the raw materials.

[0020] The valve opening and closing control system, based on feedback data from the preheating water tank temperature and level detectors A5-1, B5-2, A5-3, and B5-4, controls the opening size of the upper electric steam inlet valve 3-1, upper electric steam outlet valve 3-2, lower electric steam inlet valve 3-3, and lower electric steam outlet valve 3-4 to control the water temperature in the preheating water tank 1-1 and the direct water tank 1-2; simultaneously, it controls the opening and closing of the upper electric inlet valve 2-1 and upper electric valve 2-2 to control the water level.

[0021] In operation, the control system controls the electric inlet valve 2-1 to control the water level in the preheating tank 1-1. Water temperature and level detectors A5-1 and B5-2 control the opening and closing of the electric inlet valve 2-1 via the valve opening and closing control system, thereby achieving water level stability. The upper electric steam inlet valve 3-1 and upper electric steam outlet valve 3-2 are the steam inlet and outlet, respectively, used to heat the water in the preheating tank 1-1. The amount of steam supplied is controlled by the water temperature and level detectors A5-1 and B5-2.

[0022] The direct water tank 1-2 is used for adding water to the raw materials in the direct mixer. The heated water in the preheating water tank 1-1 is supplied into the direct water tank 1-2 by the upper electric valve 2-2. In order to keep the water temperature in the direct water tank 1-2 constant, the water temperature and water level detectors A5-3 and B5-4 inside the direct water tank 1-2 measure the water temperature and control the lower electric steam inlet valve 3-3 and the lower electric steam outlet valve 3-4 to preheat the water temperature with steam. After the detected water level drops, the upper electric valve 2-2 is opened to supply water to the direct water tank 1-2.

[0023] The automatic water supply control system controls the opening and closing of water supply valves 2-3 based on the moisture content data measured by the high-precision humidity sensor installed at the feed inlet of the mixer.

[0024] Inspection port 4 allows for real-time monitoring of water level changes inside the tank.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for automatically adjusting the water addition and preheating the water temperature in a mixer, characterized in that: It includes a preheating water tank, a direct water tank, a heating system, and a control system. The heating system is installed inside the preheating water tank and the direct water tank, with the preheating water tank on the upper side and the direct water tank on the lower side. An upper electric valve is installed at the lower end of one end of the preheating water tank, which is connected to the direct water tank.

2. The device for automatically adjusting the water quantity and preheating the water temperature of a mixer according to claim 1, characterized in that: The preheating water tank is equipped with an upper steam heating pipe of the heating system, which is horizontally installed inside. The upper steam heating pipe is equipped with an upper electric steam inlet valve at the steam inlet end and an upper electric steam outlet valve at the steam outlet end. An upper electric water inlet valve and an inspection port are installed on the upper side of the preheating water tank. A preheating water tank temperature and level detector A is installed on the upper part of the side wall away from the upper electric steam inlet valve, and a preheating water tank temperature and level detector B is installed on the lower part.

3. The device for automatically adjusting the water quantity and preheating the water temperature of a mixer according to claim 1, characterized in that: The direct water tank is equipped with a lower steam heating pipe of the heating system, which is horizontally installed inside. The lower steam heating pipe is equipped with a lower electric steam inlet valve at the steam inlet end and a lower electric steam outlet valve at the steam outlet end. A direct water tank water temperature and level detector A is installed on the upper part of the side wall away from the lower electric steam inlet valve, and a direct water tank water temperature and level detector B and a water supply valve are installed on the lower part.

4. The device for automatically adjusting the water quantity and preheating the water temperature of a mixer according to claim 1, characterized in that: The control system includes an automatic water filling control system and a valve opening and closing control system.

5. The device for automatically adjusting the water quantity and preheating the water temperature of a mixer according to claim 4, characterized in that: The automatic water addition control system includes a high-precision humidity sensor installed at the feed inlet of the mixer. The humidity sensor can detect the humidity of the raw materials entering the mixer in real time. The automatic water addition control system compares the actual humidity value with the preset standard value, calculates the amount of water to be added through the water addition calculation model, and controls the opening and closing of the water supply valve to control the humidity of the raw materials.

6. The device for automatically adjusting the water addition and preheating the water temperature in a mixer according to claim 4, characterized in that: The valve opening and closing control system, based on feedback data from the preheating water tank temperature and level detector A, the preheating water tank temperature and level detector B, the direct water tank temperature and level detector A, and the direct water tank temperature and level detector B, controls the opening size of the upper electric steam inlet valve, the upper electric steam outlet valve, the lower electric steam inlet valve, and the lower electric steam outlet valve respectively, in order to control the water temperature in the preheating water tank and the direct water tank; at the same time, it controls the opening and closing of the upper electric inlet valve and the upper electric valve to control the water level.

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