Liquid level monitoring device for chemical furnace and chemical furnace

Abstract

The invention relates to the technical field of chemical furnaces, in particular to a liquid level monitoring device for a chemical furnace and the chemical furnace, the liquid level monitoring device comprises a liquid level monitoring piece and a buzzer, the liquid level monitoring piece comprises a connecting seat, a fixing plate, a guide rod and a floating adjusting piece, and the liquid level monitoring piece is connected to the floating adjusting piece through a floating plate stretching into the chemical furnace; according to the chemical furnace liquid level monitoring alarm device, when the floating plate floats up and down along with the change of the liquid level in a chemical furnace, the floating adjusting piece is promoted to slide up and down on the guide rod, and when the floating adjusting piece slides to be in contact with the fixed plate, the alarm switch and the buzzer are triggered to buzz to give an alarm, so that the liquid level in the chemical furnace is monitored and alarmed, and the safety and the liquid level monitoring accuracy are improved; and the device is simple in structure, and maintenance and replacement cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chemical furnaces, and in particular to a liquid level monitoring device for a chemical furnace and a chemical furnace. Background Art

[0002] Chemical furnaces include chemical smelting furnaces and chemical reactors. Chemical smelting furnaces are used to melt metal ingots and some scrap metals, add necessary alloy components, and melt them into the required alloy liquid through processes such as slagging and refining. Chemical reactors are also called reactors, reaction barrels, etc., which are used to add different reaction materials to the reactor for dissolution, melting, and heat preservation to promote the normal progress of chemical reactions. Most existing chemical furnaces observe the liquid level in the furnace by setting an observation port, which leads to high safety hazards and inaccurate liquid level control in the chemical furnace.

[0003] Therefore, a large number of studies on liquid level monitoring devices in chemical furnaces have emerged in the prior art. For example, patent application No. 202221631125.0 discloses an online monitoring and alarm device for the weight of aluminum liquid in the furnace. A distance measuring part is set on the support part, and the distance measuring part is connected to the alarm light wire. The distance measuring part is set corresponding to the aluminum liquid in the aluminum liquid supply box through a through port, so as to achieve real-time detection of the height of the aluminum liquid in the insulation furnace and improve the monitoring accuracy. The distance measuring part includes a laser rangefinder and a heat insulation layer. The laser rangefinder is located directly above the baffle plate, the laser rangefinder is fixedly connected to the fixed frame, the laser rangefinder is connected to the alarm light wire, and the heat insulation layer is sleeved outside the laser rangefinder, and the heat insulation layer is fixedly connected to the fixed frame.

[0004] Another example: Patent application No. 202222810966.4 discloses a boiler liquid level monitoring and alarm device, including a monitoring shell fixedly connected to one side of the boiler, the lower half of the monitoring shell is in communication with the inside of the boiler, a first piston is interference fit in the monitoring shell, an upper shell is fixedly connected to the top of the monitoring shell, a lower shell is fixedly connected to the side wall of the boiler, a connecting cylinder is fixedly arranged between the upper half of the lower shell and the bottom of the monitoring shell, a liquid discharge portion is arranged in the connecting cylinder, a first tube is passed through the lower half of one side of the upper shell, a second tube is passed through the upper half of one side of the boiler, an adjusting tube is passed through the upper half of one side of the monitoring shell, the bottom of the first tube and the top of the second tube are both in communication with the adjusting tube, and a liquid inlet portion is arranged in the adjusting tube. When the boiler liquid level is high or low, the boiler can be drained and liquid can be added, so that the boiler liquid level always maintains a suitable height, thereby improving the applicability of the boiler liquid level monitoring device.

[0005] For another example: Patent application No. 202421096631.3 discloses a liquid level control system, including a liquid level measurement unit, a liquid level control unit and a discharge valve unit, which uses an isotope radiation source, a detector and a signal converter to monitor and control the liquid level.

[0006] However, most of the devices for monitoring and controlling (alarming) the liquid level in chemical furnaces in the prior art obtain the liquid level height in the chemical furnace by indirectly measuring the distance between the liquid level and the measuring device, which results in inaccurate monitoring due to the influence of high temperature, and basically only realizes the limit alarm function but cannot obtain the liquid level height in the chemical furnace in time and in real time, resulting in inaccurate control of the liquid level in the chemical furnace; and, under the influence of high temperature, the service life of the liquid level monitoring and alarm devices is relatively short, and the structure of the existing liquid level monitoring and alarm devices is relatively complex, resulting in high replacement costs. Summary of the invention

[0007] Based on the above technical problems, the present invention provides a liquid level monitoring device for a chemical furnace and a chemical furnace, which utilizes the buoyancy of the liquid in the chemical furnace to match the scale to achieve real-time monitoring of the liquid height in the furnace, and installs an alarm switch on the scale, and connects the alarm switch to the buzzer wire to realize alarm, thereby ensuring the accuracy of monitoring the liquid in the furnace and improving the safety of liquid level control in the furnace; and simplifying the device structure, reducing replacement and maintenance costs.

[0008] The specific technical solution is:

[0009] One of the purposes of the present invention is to provide a liquid level monitoring device for a chemical furnace, including a liquid level monitoring component and a buzzer, the liquid level monitoring component including a connecting seat, a fixed plate is provided on the connecting seat, a guide rod is provided between the fixed plate and the bottom end of the connecting seat; a floating adjustment component is provided on the guide rod, and the floating adjustment component can slide freely on the guide rod; the floating adjustment component is connected to a floating plate that can extend into the chemical furnace; an alarm switch is provided on the fixed plate, and the floating adjustment component can trigger the alarm switch; the alarm switch is connected to the buzzer wire.

[0010] A floating plate extended into the chemical furnace is connected to a floating adjustment member, so that when the floating plate floats up and down as the liquid level in the chemical furnace changes, the floating adjustment member is prompted to slide up and down on the guide rod. When the floating adjustment member slides to contact the fixed plate, the alarm switch is triggered, and the buzzer sounds an alarm, thereby realizing liquid level monitoring and alarm in the chemical furnace, improving safety and accuracy of liquid level monitoring. The device has a simple structure and is conducive to reducing maintenance and replacement costs.

[0011] In order to achieve real-time monitoring of the liquid level in the chemical furnace, preferably, a scale is provided on the connecting seat, the height of the scale is ≥ the height of the guide rod, and the initial scale of the scale is located at the bottom end of the guide rod.

[0012] In order to meet the adjustment requirements of different liquid level monitoring alarms, preferably, the fixing plate can be slidably adjusted on the connecting seat and then locked and fixed, and the guide rod can freely extend and retract as the fixing plate slides and adjusts.

[0013] In order to reduce the difficulty of installation, preferably, a card slot is provided on the connecting seat, and a fixing block matching the card slot is provided on the chemical furnace.

[0014] In order to simplify the device structure and meet the floating adjustment requirements, preferably, the floating adjustment member includes an L-shaped plate installed on the guide rod, and the L-shaped plate can slide freely on the guide rod; a connecting plate is connected to the top end of the L-shaped plate, and a connecting rod is provided at the end of the connecting plate away from the L-shaped plate; a floating plate is fixedly connected to the bottom end of the connecting rod.

[0015] In order to enhance the stability of the floating adjustment member as it slides up and down along the floating plate, preferably, the guide rods are in two groups.

[0016] In order to prevent the buzzer from being exposed to the environment, preferably, the buzzer is installed in an alarm box, and the alarm box is fixedly installed on the chemical furnace.

[0017] The second purpose of the invention is to provide a chemical furnace, including a furnace body and the above-mentioned liquid level monitoring device for a chemical furnace installed on the furnace body. The floating plate is installed in the chemical furnace, so that the floating plate floats up and down with the change of the liquid level in the chemical furnace, and then drives the floating adjustment member to slide up and down on the guide rod, and the floating adjustment member triggers the alarm switch to make the buzzer sound, so as to achieve the purpose of monitoring the liquid level in the chemical furnace; and the overall structure of the liquid level monitoring device is simplified, and the maintenance and replacement costs are reduced.

[0018] In order to facilitate the fixed installation of the liquid level monitoring device on the furnace body and reduce the difficulty of installation, preferably, a mounting plate is provided on the furnace body, a fixed block matching the slot is provided on the mounting plate, a bolt is connected to the fixed block, and a rotating block is threadedly connected to the bolt; the rotating block is adapted to the fixed block.

[0019] In order to satisfy the interaction between the floating adjustment part and the floating plate connection, and to achieve sealing of the top of the furnace body to improve safety, preferably, a detachable furnace cover is provided on the top of the furnace body, a feed port is provided on the furnace cover, and a through hole is provided in the center of the furnace cover for the connecting rod to freely extend into.

[0020] In order to utilize the furnace body itself to heat, dissolve, melt and fuse the materials in the chemical furnace to form a liquid, preferably, a plurality of annular heating tubes are provided in the furnace body.

[0021] In order to discharge the liquid material in the furnace body, preferably, a discharge port is provided at the bottom of the furnace body, and a valve is provided on the discharge port.

[0022] Compared with the prior art, the technical effects created by the present invention are embodied in:

[0023] The invention utilizes the interaction between the guide rod, the floating adjustment member and the floating plate, so that the floating plate acts on the liquid material in the furnace body of the chemical furnace and floats on the liquid material, and moves up and down in the furnace body as the amount of the liquid material increases or decreases, thereby driving the floating adjustment member to slide up and down on the guide rod, and when the liquid level rises to a limited position, the floating adjustment member triggers the alarm switch to make the buzzer sound, thereby achieving the alarm purpose. The device has a simple structure, low preparation cost, and low maintenance and replacement cost.

[0024] The invention utilizes an annular heating tube to heat the furnace body, which can cause the material that needs to be dissolved, melted or melted to be heated in the furnace body to form a liquid, thereby meeting the heating requirement. After the liquid level gradually rises after dissolving, melting or melting, the floating plate moves upward and drives the floating adjustment part to move upward on the guide rod, thereby triggering an alarm switch to sound an alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to facilitate those skilled in the art to fully understand the technical solution of the present invention, the following description is made for the drawings provided in combination with the content of the technical solution and the drawings provided. The directional words described in the present invention, such as: up, down, front, back, left, right, bottom, top, etc., are all descriptions made in combination with and facing the following drawings for easy understanding, and are not limitations on the technical solution of the present invention.

[0026] Figure 1 The present invention is a schematic diagram of the overall structure of the device.

[0027] Figure 2 For installation Figure 1 Schematic diagram of the chemical furnace structure after installation.

[0028] Figure 3 for Figure 2 Schematic diagram of the cross-section structure.

[0029] Figure 4 for Figure 2 Schematic diagram of the structure from another perspective.

[0030] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0031] 1-furnace body;

[0032] 101-feeding port 102-annular heating pipe 103-alarm box 104-buzzer 105-furnace cover 106-mounting plate 107-fixing block 108-bolt 109-rotating block;

[0033] 2-Liquid level monitoring components;

[0034] 201 -connecting seat 202 -scale 203 -fixing plate 204 -alarm switch 205 -guide rod 206 -L-shaped plate 207 -connecting plate 208 -connecting rod 209 -floating plate 210 -slot. DETAILED DESCRIPTION

[0035] In order to facilitate those skilled in the art to correctly understand the present invention and enable those skilled in the art to fully understand the technical content of the present invention, the technical solution of the present invention is further explained below in conjunction with specific implementation methods and drawings. However, this explanation does not limit the scope of protection required for the present invention. The scope of protection of the present invention by those skilled in the art cannot be limited to the following explanations. Any equivalent substitutions or changes made by any those skilled in the art or persons familiar with the technology in the art based on the present invention and the technical solution and inventive concept thereof should be covered within the scope of protection of the present invention.

[0036] like Figure 1 As shown, in certain embodiments, a liquid level monitoring device for a chemical furnace includes a liquid level monitoring component 2 for monitoring the liquid level height in the chemical furnace and a buzzer 104 that sounds an alarm when the liquid level monitoring component 2 detects that the liquid level in the chemical furnace has reached a maximum limit value. The liquid level monitoring component 2 includes a connecting seat 201 for mounting the liquid level monitoring component 2 as a whole on the chemical furnace, and a fixing plate 203 is provided on the connecting seat 201. A guide rod 205 is provided between the fixing plate 203 and the bottom end of the connecting seat 201; a floating adjustment component is provided on the guide rod 205, and the floating adjustment component can slide freely on the guide rod 205; a floating plate 209 that can extend into the chemical furnace is connected to the floating adjustment component; an alarm switch 204 is provided on the fixing plate 203, and the floating adjustment component can trigger the alarm switch 204; the alarm switch 204 is connected to the buzzer 104 by wire. When the device is installed, as shown in FIG. Figure 2 , Figure 3 and Figure 4As shown, the connection seat 201 is fixedly mounted on the furnace body 1, and the floating plate 209 is located in the furnace body 1. When in use, as the liquid level in the furnace body 1 changes, the position of the floating plate 209 in the furnace body 1 changes, which then drives the floating adjustment member to slide freely on the guide rod 205, so that the position change of the floating plate 209 in the furnace body 1 is converted into the position change of the floating adjustment member on the guide rod 205, so as to realize the monitoring of the liquid level in the furnace body 1; when the liquid level in the furnace body 1 reaches the maximum limit, the floating adjustment member triggers the alarm switch 204 on the fixed plate 203, so that the buzzer 104 sounds, and the alarm purpose is achieved. The device has a simple structure, is easy to install, and is easy to repair and replace. It can also be directly installed and used on an existing chemical furnace, is easy to promote, and has low cost. In this embodiment, the connection between the connecting seat 201 and the furnace body 1 can be connected by several connection methods such as screw connection, snap connection or welding, as long as the floating plate 209 can be installed in the furnace body 1 and the floating adjustment member can change position on the guide rod 205 as the position of the floating plate 209 changes.

[0037] like Figure 1 and Figure 4 As shown, in some embodiments, a scale 202 is provided on the connection base 201, the height of the scale 202 is ≥ the height of the guide rod 205, and the initial scale of the scale 202 is located at the bottom end of the guide rod 205. It is possible to monitor and read the liquid level in the furnace body 1 in real time, and ensure the accuracy of liquid level monitoring.

[0038] In some embodiments, the fixing plate 203 can be locked and fixed after sliding adjustment on the connecting seat 201, and the guide rod 205 can freely expand and contract with the sliding adjustment of the fixing plate 203. The maximum limit alarm value of the liquid level in the furnace body 1 can be adjusted as needed to meet the alarm monitoring requirements of various reactions and various liquid quantities.

[0039] like Figure 1 and Figure 5 As shown, in some embodiments, the connection seat 201 is provided with a card slot 210, and the chemical furnace is provided with a fixing block 107 matching the card slot 210. The card connection is realized, the installation difficulty is reduced, and the convenience is enhanced.

[0040] like Figure 1 and Figure 2 and Figure 3 and Figure 4As shown, in some embodiments, the floating adjustment member includes an L-shaped plate 206 mounted on the guide rod 205, and the L-shaped plate 206 can slide freely on the guide rod 205; the top of the L-shaped plate 206 is connected to a connecting plate 207, and the connecting plate 207 is provided with a connecting rod 208 at one end away from the L-shaped plate 206; the bottom end of the connecting rod 208 is fixedly connected to a floating plate 209. The structure of the liquid level monitoring device is simplified. When in use, in the initial state, the float plate 209 is located at the bottom end of the furnace body 1. Raw materials are added into the furnace body 1 and heated to melt or dissolve or dissolve, so that the raw materials are in a liquid state. As the liquid increases, the float plate 209 slowly rises, driving the connecting rod 208, the connecting plate 207 and the L-shaped plate 206 to move upward as a whole. The L-shaped plate 206 slides on the guide rod 205, and in the process of the L-shaped plate 206 moving upward, when the L-shaped plate 206 contacts the alarm switch 204 and triggers the alarm switch 204, the buzzer 104 sounds an alarm to remind the staff that the liquid level inside the furnace body 1 will be too high. In some embodiments, a scale 202 is provided to facilitate the staff to intuitively check the liquid level inside the furnace body 1, thereby improving the monitoring accuracy and safety.

[0041] In some embodiments, the guide rods 205 are in two groups, which enhances the stability of the L-shaped plate 206 or the floating adjustment member sliding freely on the guide rods 205 as a whole.

[0042] like Figure 2 and Figure 3 As shown, in some embodiments, the buzzer 104 is installed in the alarm box 103, and the alarm box 103 is fixedly installed on the chemical furnace, so as to avoid the buzzer 104 being exposed.

[0043] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, a chemical furnace includes a furnace body 1 and the above-mentioned embodiment (such as Figure 1 The liquid level monitoring device for a chemical furnace provided in FIG. 1 can monitor the liquid level in the furnace body 1 in real time, and the device has a simple structure.

[0044] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, the furnace body 1 is provided with a mounting plate 106 (welded or integrally formed, etc.), the mounting plate 106 is provided with a fixing block 107 matching the slot 210, the fixing block 107 is connected with a bolt 108, and the bolt 108 is threadedly connected with a rotating block 109; the rotating block 109 is adapted to the fixing block 107. Figure 1 When the liquid level monitoring device for a chemical furnace provided by the present invention is used, the rotating block 109 is rotated to form an "I" shape with the fixed block 107, and then the slot 210 is adapted to be installed with the fixed block 107, and the fixed block 107 is sleeved in the slot 210. The rotating block 109 is rotated to form a cross shape (for example, a "X" shape) with the fixed block 107 to achieve fixed installation and connection. When maintenance or replacement is required, the rotating block 109 is rotated to form an "I" shape with the fixed block 107, and then the slot 210 is removed from the fixed block 107 to achieve disassembly.

[0045] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, a furnace cover 105 is detachably provided on the top of the furnace body 1, a feed port 101 is provided on the furnace cover 105, and a through hole is provided in the center of the furnace cover 105 for the connecting rod 208 to freely extend into, thereby ensuring the safety of the chemical furnace.

[0046] like Figure 3 As shown, in some embodiments, a plurality of annular heating tubes 102 are provided in the furnace body 1 to achieve direct heating of the furnace body 1 .

[0047] In some embodiments, a discharge port is provided at the bottom of the furnace body 1, and a valve is provided on the discharge port to facilitate discharge.

[0048] In some embodiments, the floating plate 209 is provided with a plurality of notches or a plurality of through holes penetrating the upper and lower surfaces; or the floating plate 209 is in a grid shape, so that when adding materials from the top of the furnace body 1, they can fall into the bottom of the furnace body 1 through the notches, through holes or grid holes between the grid shapes, thereby avoiding the added reactant raw materials from being accumulated in large quantities on the upper surface of the floating plate 209.

[0049] The liquid level monitoring device for chemical furnaces created by the present invention is suitable for monitoring the liquid level changes in the reaction process of adding liquid chemical materials; it is also suitable for the operation of melting metal ingots into metal liquid and adding suitable alloy components to prepare alloy liquid. Other matters not covered by the present invention can be realized by conventional technical means with reference to the prior art or common knowledge known to those skilled in the art. For example, the floating plate and connecting rod used in the present invention are materials determined according to the common knowledge of those skilled in the art. If the liquid and solid, liquid and liquid reaction at normal temperature and pressure are used to monitor the liquid level, it is sufficient to float on the liquid level to be monitored and to support the floating adjustment part and slide freely on the guide rod. If the metal ingot is dissolved at high temperature to form a metal liquid and monitor the metal liquid level, it is sufficient to float on the surface of the metal liquid and have high temperature resistance (at least the melting point is greater than the melting point of the metal ingot, that is, the floating plate still floats on the surface of the metal liquid without being melted after the metal ingot is melted into the metal liquid); specifically, the reference metal ingot melting temperature is less than 1600℃ and the density of the metal liquid formed by the melting of the metal ingot is greater than 3g / cm 3 When the melting temperature of the metal ingot is less than 2500℃ and the density of the molten metal formed by the melting of the metal ingot is greater than 3.48g / cm 3 , boron nitride ceramic material is selected.

Claims

1. A liquid level monitoring device for a chemical furnace, characterized in that: The invention comprises a liquid level monitoring component (2) and a buzzer (104), wherein the liquid level monitoring component (2) comprises a connecting seat (201), a fixing plate (203) is provided on the connecting seat (201), a guide rod (205) is provided between the fixing plate (203) and the bottom end of the connecting seat (201); a floating adjustment component is provided on the guide rod (205), and the floating adjustment component can slide freely on the guide rod (205); a floating plate (209) which can extend into a chemical furnace is connected to the floating adjustment component; an alarm switch (204) is provided on the fixing plate (203), and the floating adjustment component can trigger the alarm switch (204); the alarm switch (204) is connected to the buzzer (104) by electric wire.

2. The liquid level monitoring device for a chemical furnace as claimed in claim 1, characterized in that: The connecting seat (201) is provided with a scale (202), the height of the scale (202) is greater than or equal to the height of the guide rod (205), and the initial scale of the scale (202) is located at the bottom end of the guide rod (205).

3. The liquid level monitoring device for a chemical furnace as claimed in claim 1, characterized in that: The fixing plate (203) can be locked and fixed after sliding adjustment on the connecting seat (201), and the guide rod (205) can freely extend and retract as the fixing plate (203) slides and adjusts.

4. The liquid level monitoring device for a chemical furnace as claimed in claim 1, characterized in that: The connecting seat (201) is provided with a slot (210), and a fixing block (107) matching the slot (210) is provided on the chemical furnace.

5. The liquid level monitoring device for a chemical furnace as claimed in claim 1, characterized in that: The floating adjustment member comprises an L-shaped plate (206) mounted on the guide rod (205), and the L-shaped plate (206) can slide freely on the guide rod (205); the top end of the L-shaped plate (206) is connected to a connecting plate (207), and the connecting plate (207) is provided with a connecting rod (208) at one end away from the L-shaped plate (206); the bottom end of the connecting rod (208) is fixedly connected to a floating plate (209).

6. The liquid level monitoring device for a chemical furnace as claimed in claim 1, 2, 3 or 5, characterized in that: The guide rods (205) are divided into two groups.

7. The liquid level monitoring device for a chemical furnace as claimed in claim 1, characterized in that: The buzzer (104) is installed in the alarm box (103), and the alarm box (103) is fixedly installed on the chemical furnace.

8. A chemical furnace, characterized in that: It comprises a furnace body (1) and a liquid level monitoring device for a chemical furnace as claimed in any one of claims 1 to 7, which is installed on the furnace body (1).

9. The chemical furnace according to claim 8, characterized in that: The furnace body (1) is provided with a mounting plate (106), the mounting plate (106) is provided with a fixing block (107) matching the clamping slot (210), the fixing block (107) is connected with a bolt (108), and the bolt (108) is threadedly connected with a rotating block (109); the rotating block (109) is matched with the fixing block (107).

10. The chemical furnace according to claim 8, characterized in that: The furnace body (1) is provided with a detachable furnace cover (105) on the top, the furnace cover (105) is provided with a feed port (101), and the center of the furnace cover (105) is provided with a through hole for the connecting rod (208) to freely extend into; and / or a plurality of annular heating tubes (102) are provided in the furnace body (1); and / or a discharge port is provided at the bottom of the furnace body (1), and a valve is provided on the discharge port.

Images