Slag extractor
The water level detection device, which combines a float and a drive rod, solves the problem of inaccurate water level detection in the slag discharge machine, achieves accurate water level detection and reliable automatic water replenishment, and improves the operational stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-10
AI Technical Summary
The existing slag discharge machine has inaccurate water level detection, which leads to errors in the automatic water replenishment system, resulting in problems such as water levels that are too low or too high.
The water level detection device, which uses a combination of a float and a drive rod, moves the indicator unit when the water level changes. Combined with the guide component and the detection component, it can accurately detect the water level and automatically replenish water through a water replenishment device.
It improves the accuracy of water level detection, avoids the influence of suspended solids and foam on water level detection, ensures the reliability and timeliness of automatic water replenishment, and reduces equipment failures.
Smart Images
Figure CN223985180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste treatment equipment technology, and in particular to a slag discharge machine. Background Technology
[0002] As the mainstream waste incineration method, grate incinerators come in various forms and account for over 80% of the global waste incineration market. The biggest advantage of this type of incinerator lies in its mature technology, stable and reliable operation, and wide adaptability. Most solid waste can be directly burned in the furnace without any pretreatment. It is particularly suitable for large-scale centralized waste treatment, enabling waste-to-energy (or heat) generation. In waste-to-energy projects, approximately 25% of the high-temperature dry ash (including slag and fly ash, the specific proportion depending on the local waste composition) is still discharged as secondary waste. The ash on the grate and the ash leaking from the ash hopper enter the slag discharge machine through the slag discharge well. The slag discharge machine is the slag conveying equipment, and currently, a water bath method is often used to extinguish the slag using wastewater.
[0003] Because the slag discharger contains ash and slag for a long time, and the water source used is production wastewater, the water in the slag discharger's water tank is prone to producing suspended solids and foam, and sludge at the bottom. This causes the radar and other liquid level switches to measure inaccurately, which in turn causes errors in the automatic water replenishment switch of the slag discharger, resulting in problems such as low water level in the tank and excessive dust in the slag discharger. Utility Model Content
[0004] The main purpose of this utility model is to propose a slag discharge machine, which aims to solve the problem of inaccurate water level detection by the water level detection component in existing slag discharge equipment.
[0005] To achieve the above objectives, this utility model proposes a slag discharge machine, comprising a slag discharge machine body, a water level detection device, and a water replenishment device. The slag discharge machine body has a water storage chamber and a slag removal chamber that are interconnected. The water replenishment device is connected to the water storage chamber. The water level detection device includes a float, an indicator, a drive rod, and a detection component capable of detecting the position of the indicator. The float is disposed in the water storage chamber. One end of the drive rod is connected to the float, and the other end is drivenly connected to the indicator. The drive rod moves in the vertical direction and drives the indicator to move. The water level detection device also includes a guide component for limiting the horizontal movement of the drive rod.
[0006] According to some embodiments of the present invention, the guide assembly includes a guide tube sleeved on the drive rod, the guide tube extending in the vertical direction.
[0007] According to some embodiments of the present invention, the water replenishment device includes a water replenishment pipe and an electric valve disposed on the water replenishment pipe, the water replenishment pipe is connected to the water storage chamber, and the detection component is electrically connected to the electric valve.
[0008] According to some embodiments of the present invention, the indicator is movable in the vertical direction, the detection component includes three proximity switches, all of which are electrically connected to the electric valve, and the three proximity switches are spaced apart in the vertical direction and are all within the moving stroke of the indicator.
[0009] According to some embodiments of the present invention, the detection component further includes two warning switches capable of sending warning signals. Both warning switches are located on the travel distance of the indicator, with one located above the three proximity switches and the other located below the three proximity switches.
[0010] According to some embodiments of this utility model, the water supply pipe is connected to the water storage chamber via a float valve.
[0011] According to some embodiments of this utility model, the water storage cavity is connected to an overflow pipe, and the overflow pipe is connected to the water storage cavity at a position below the water replenishment device connection port.
[0012] According to some embodiments of the present invention, the slag discharge machine body includes a shell and a slag pushing device. The shell is provided with a water storage chamber and a slag removal chamber, and the shell is provided with a slag inlet and a slag outlet. The slag inlet and the slag outlet are both connected to the slag removal chamber. The slag pushing device includes a slag pushing part disposed in the slag removal chamber. The slag pushing part moves toward the slag outlet, and the moving stroke of the slag pushing part passes below the slag inlet.
[0013] According to some embodiments of the present invention, the slag pushing part includes a plurality of slag pushing plates connected end to end in sequence, and the upper part of each slag pushing plate cooperates to form a plurality of stepped surfaces, which gradually descend towards the slag outlet.
[0014] According to some embodiments of the present invention, the slag outlet is inclined upward and gradually widened in a direction away from the slag removal chamber.
[0015] This utility model has at least the following beneficial effects:
[0016] In this invention, wastewater is pumped into the slag removal chamber through the water storage chamber to extinguish ash and slag. Generally, the water level in the water storage chamber is higher than the connection point between the water storage chamber and the slag removal chamber to achieve a water seal effect, preventing ash and slag from entering the water storage chamber. Simultaneously, it ensures that when the wastewater in the slag removal chamber is discharged along with the extinguished ash and slag, the wastewater in the water storage chamber can be replenished in a timely manner. Therefore, when the wastewater level in the water storage chamber is lower than the connection point between the water storage chamber and the slag removal chamber, water needs to be replenished into the water storage chamber promptly. This invention places a float ball in the water storage chamber. When the water level rises or falls, the float ball rises or falls accordingly, causing the drive rod to move vertically, thereby moving the indicator. The current water level information can be obtained by detecting the position of the indicator by the detection component. Based on the water level information, it is determined whether the water replenishment device should replenish wastewater into the water storage chamber. This invention relies on the float and the drive rod to associate the water level with the position of the indicator. The water level can be detected by detecting the current position of the indicator through the detection component. Since the float floats on the water surface, compared with the existing slag discharge equipment that directly detects the water level through radar and other liquid level detection components, the influence of suspended matter and foam on the detection results can be eliminated, thereby improving the accuracy of water level detection. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the structure of a slag discharge machine provided in an embodiment of this utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of the water storage chamber and water level detection device.
[0020] Explanation of reference numerals in the attached figures:
[0021] 100-Slag discharger; 1-Slag discharger body; 11-Shell; 111-Water storage chamber; 112-Slag removal chamber; 113-Slag inlet; 114-Slag outlet; 115-Wear-resistant plate; 12-Slag pushing device; 121-Slag pushing part; 1211-Slag pushing plate; 122-Drive part; 123-Transmission rod; 2-Water level detection device; 21-Float ball; 22-Indicator part; 23-Drive rod; 24-Detection component; 241-Proximity switch; 242-Warning switch; 25-Guide component; 251-Guide pipe; 3-Water replenishment device; 31-Water replenishment pipe; 32-Electric valve; 33-Float valve. Detailed Implementation
[0022] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0025] This utility model provides a slag discharge machine. Figures 1 to 2 This is a specific embodiment of a slag discharge machine provided by this utility model.
[0026] like Figure 1 and Figure 2As shown, this utility model embodiment provides a slag discharge machine 100, including a slag discharge machine body 1, a water level detection device 2, and a water replenishment device 3. The slag discharge machine body 1 has a water storage chamber 111 and a slag removal chamber 112 that are interconnected. The water level detection device 2 includes a float 21, an indicator 22, a drive rod 23, and a detection component 24 that can detect the position of the indicator 22. The float 21 is disposed in the water storage chamber 111. One end of the drive rod 23 is connected to the float 21, and the other end is drivenly connected to the indicator 22. The drive rod 23 moves in the vertical direction and drives the indicator 22 to move. The water level detection device 2 also includes a guide component 25 for limiting the horizontal movement of the drive rod 23.
[0027] In this invention, wastewater is supplied to the slag removal chamber 112 through the water storage chamber 111 to extinguish ash and slag. Under normal circumstances, the water level of the wastewater in the water storage chamber 111 is higher than the connection point between the water storage chamber 111 and the slag removal chamber 112 to achieve a water seal effect, preventing ash and slag from entering the water storage chamber 111. At the same time, it ensures that when the wastewater in the slag removal chamber 112 is discharged along with the extinguished ash and slag, the wastewater in the water storage chamber 111 can be replenished into the slag removal chamber 112 in a timely manner. Therefore, when the water level of the wastewater in the water storage chamber 111 is lower than the connection point between the water storage chamber 111 and the slag removal chamber 112, it is necessary to replenish the water storage chamber 111 in a timely manner. This invention places a float 21 inside the water storage chamber 111. When the water level rises or falls, the float 21 rises or falls accordingly, causing the drive rod 23 to move vertically, thereby moving the indicator 22. The current water level information can be obtained by detecting the current position of the indicator 22 through the detection component 2. Based on the water level information, it is determined whether the water replenishment device 3 should replenish wastewater into the water storage chamber 111. This invention associates the water level with the position of the indicator 22 through the float 21 and the drive rod 23. The water level can be detected by detecting the current position of the indicator 22 through the detection component 24. Since the float 21 floats on the water surface, compared with existing slag discharge equipment that directly detects the water level through radar or other liquid level detection components, the influence of suspended matter and foam on the detection results can be eliminated, thereby improving the accuracy of water level detection.
[0028] Because the water level drops when the wastewater in the water storage chamber 111 is output to the slag removal chamber 112, and rises when the water replenishment device 3 inputs wastewater into the water storage chamber 111, the rise and fall of the water level, accompanied by the input and output of wastewater, causes ripples on the water surface. The float 21 is subjected to a horizontal force, which in turn causes the drive rod 23 to move horizontally, affecting the detection component 24's detection of the position of the indicator 22. Therefore, a guide component 25 is needed to limit the horizontal movement of the drive rod 23. Specifically, the structure of the guide component 25 is not limited; for example, in some embodiments, such as... Figure 2 As shown, the guide assembly 25 includes a guide tube 251 sleeved on the drive rod 23, and the guide tube 251 extends in the vertical direction. This configuration restricts the horizontal movement of the drive rod 23 via the guide tube 251, ensuring that the float 21 and the drive rod 23 can only move in the vertical direction, thus avoiding interference with the detection assembly 24's position detection of the indicator 22.
[0029] In some embodiments, such as Figure 2 As shown, the water replenishment device 3 includes a water replenishment pipe 31 and an electric valve 32 mounted on the water replenishment pipe 31. The water replenishment pipe 31 is connected to the water storage chamber 111, and the detection component 24 is electrically connected to the electric valve 32. With this configuration, the detection component 24 detects the current position of the indicator 22 to obtain the current water level information. When the wastewater level is lower than the connection point between the water storage chamber 111 and the slag removal chamber 112, the detection component 24 sends a signal to the electric valve 32 to control its opening, thus achieving automatic water replenishment from the water replenishment pipe 31 to the water storage chamber 111.
[0030] The specific structure of the detection component 24 is not limited, as long as it ensures that the detection component 24 can detect the position of the indicator 22. For example, in some embodiments, such as... Figure 2As shown, the indicator 22 is movable in the vertical direction, and the detection component 24 includes three proximity switches 241. All three proximity switches 241 are electrically connected to the electric valve 32. The three proximity switches 241 are spaced apart in the vertical direction and are all within the travel range of the indicator 22. Specifically, from top to bottom, one proximity switch 241 corresponds to the position where the water level in the water storage chamber 111 is at the connection point between the water supply pipe 31 and the water storage chamber 111; one corresponds to the normal water level in the water storage chamber 111; and one corresponds to the position where the water level in the water storage chamber 111 is lower than the connection point between the water storage chamber 111 and the slag removal chamber 112. When the wastewater level in the water storage chamber 111 drops below the connection point between the water storage chamber 111 and the slag removal chamber 112, the proximity switch 241 detects the water level information and sends a signal to the electric valve 32 to open it, and the water supply pipe 31 begins to supply water. When the wastewater level rises to the connection point between the water supply pipe 31 and the water storage chamber 111, the proximity switch 241 detects the water level information and sends a signal to the electric valve 32 to close it, stopping the water supply and preventing wastewater carrying impurities from flowing back into the water supply pipe 31, which could cause blockage of the water supply pipe 31.
[0031] Furthermore, in some embodiments, such as Figure 2 As shown, the water storage chamber 111 is connected to an overflow pipe. The overflow pipe is connected to the water storage chamber 111 at a position below the connection port of the water replenishment device 3. Excess wastewater can be discharged from the overflow pipe to prevent wastewater carrying impurities from flowing back into the water replenishment device 3 and causing the water replenishment device 3 to become blocked.
[0032] When the proximity switch 241 or the electric valve 32 fails, in some embodiments, to avoid the water level being too high or too low, such as... Figure 2 As shown, the detection component 24 also includes two warning switches 242 capable of sending warning signals. Both warning switches 242 are located within the travel range of the indicator 22, with one positioned above the three proximity switches 241 and the other below them. Specifically, one warning switch 242 corresponds to the highest water level position in the water storage chamber 111, and the other warning switch 242 corresponds to the lowest water level position in the water storage chamber 111. When the proximity switches 241 or the electric valve 32 fail, and the wastewater level in the water storage chamber 111 drops to its lowest or rises to its highest, the corresponding warning switch 242 can send a warning signal to alert personnel. It should be noted that the warning switch 242 can either control an indicator light to illuminate or send a warning signal to a host computer in the monitoring room to alert personnel.
[0033] When the proximity switch 241 or the electric valve 32 fails, in some embodiments, to avoid excessive water replenishment, such as... Figure 2 As shown, the water supply pipe 31 is connected to the water storage chamber 111 via a float valve 33. With this configuration, when the wastewater level exceeds the connection point of the water supply pipe 31, the mechanical valve of the float valve 33 can close the water supply channel of the water supply pipe 31, thereby stopping water supply.
[0034] In some embodiments, such as Figure 1 As shown, the slag discharger body 1 includes a shell 11 and a slag pushing device 12. The shell 11 is provided with a water storage chamber 111 and a slag removal chamber 112. The shell 11 is provided with a slag inlet 113 and a slag outlet 114. The slag inlet 113 and the slag outlet 114 are both connected to the slag removal chamber 112. The slag pushing device 12 includes a slag pushing part 121 disposed in the slag removal chamber 112. The slag pushing part 121 moves toward the slag outlet 114. The moving stroke of the slag pushing part 121 passes below the slag inlet 113. With this configuration, ash is fed into the ash removal chamber 112 through the ash inlet 113. The wastewater in the ash removal chamber 112 extinguishes the ash, which then sinks to the bottom of the ash removal chamber 112. The ash is then pushed towards the ash outlet 114 by the ash pusher 121. Finally, the ash is discharged from the ash outlet 114 to the ash storage pit under the action of inertia.
[0035] Specifically, the slag pushing device 12 further includes a drive unit 122 and a transmission rod 123. One end of the transmission rod 123 is connected to the output shaft of the drive unit 122, and the other end is rotatably connected to the slag pushing unit 121. The transmission rod 123 converts the rotation of the output shaft into the translation of the slag pushing unit 121. The drive unit 122 can be a motor, a hydraulic cylinder combined with a transmission mechanism, or other drive mechanisms known to those skilled in the art for rotating the output shaft.
[0036] Furthermore, in some embodiments, such as Figure 1 As shown, the slag pushing part 121 contacts the bottom of the slag removal chamber 112, and the contact surface of the slag pushing part 121 is adapted to the shape of the bottom surface of the slag removal chamber 112, so that the slag pushing part 121 can discharge the ash and slag in the slag removal chamber 112 as much as possible.
[0037] The specific shape and structure of the slag pushing part 121 are not limited, as long as the slag pushing part 121 can push the ash and slag towards the slag outlet 114. For example, in some embodiments, such as... Figure 1As shown, the slag pushing section 121 includes multiple slag pushing plates 1211 connected end to end. The upper part of each slag pushing plate 1211 has multiple stepped surfaces that cooperate with each other, and the multiple stepped surfaces gradually descend towards the slag outlet 114. With this configuration, when the height of the ash slag is higher than the nearest smallest slag pushing plate 1211, the other slag pushing plates 1211 can push the ash slag above the smallest slag pushing plate 1211, preventing the topmost ash slag from being unable to be pushed and falling onto the side of the slag pushing section 121 away from the slag outlet 114. When the slag pushing section 121 resets, it is pushed into the water storage chamber 111.
[0038] Furthermore, in some embodiments, such as Figure 1 As shown, the slag outlet 114 is inclined upwards and gradually widens in a direction away from the slag removal chamber 112. The upward inclination of the slag outlet 114 can better control the ash discharge process and reduce dust dispersion. At the same time, the gradually widening slag outlet 114 can prevent ash from clogging the slag outlet 114.
[0039] In some embodiments, such as Figure 1 As shown, the inner wall of the slag removal chamber 112 is covered with multiple wear-resistant plates 115. Since the inner wall of the slag removal chamber 112 is in long-term contact with the slag pushing part 121 and ash, the wear-resistant plates 115 can improve the wear resistance of the slag discharger 100, thereby increasing the service life of the slag discharger 100.
[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A slag extractor characterized in that, The water level detecting device comprises a float ball, an indicating part, a driving rod and a detecting assembly capable of detecting the position of the indicating part, the float ball is arranged in the water storage cavity, one end of the driving rod is connected with the float ball and the other end is drivingly connected with the indicating part, the driving rod moves in the up-down direction and drives the indicating part to move, the water level detecting device further comprises a guiding assembly for limiting the movement of the driving rod in the horizontal direction.
2. The slag extractor of claim 1 wherein, The guiding assembly comprises a guiding pipe sleeved on the driving rod, and the guiding pipe extends in the up-down direction.
3. The slag extractor of claim 1 wherein, The water supplementing device comprises a water supplementing pipe and an electric valve arranged on the water supplementing pipe, the water supplementing pipe is communicated with the water storage cavity, and the detecting assembly is electrically connected with the electric valve.
4. The slag extractor of claim 3 wherein, The indicating part is arranged to move in the up-down direction, the detecting assembly comprises three proximity switches, the three proximity switches are electrically connected with the electric valve, the three proximity switches are arranged in the up-down direction and are all located in the moving stroke of the indicating part.
5. The slag extractor of claim 4 wherein, The detecting assembly further comprises two warning switches capable of sending warning signals, the two warning switches are both located in the moving stroke of the indicating part, one of the two warning switches is arranged above the three proximity switches and the other is arranged below the three proximity switches.
6. The slag extractor of claim 3 wherein, The water supplementing pipe is communicated with the water storage cavity through a float ball valve.
7. The slag extractor of claim 1 wherein, The water storage cavity is communicated with a water overflow pipe, and the communication position of the water overflow pipe with the water storage cavity is below the communication port of the water supplementing device.
8. The slag extractor of claim 1 wherein, The slagging-off machine body comprises a shell and a slag pushing device, the shell is provided with the water storage cavity and the slag removal cavity, and the shell is provided with a slag inlet and a slag outlet, the slag inlet and the slag outlet are both communicated with the slag removal cavity, and the slag pushing device comprises a slag pushing part arranged in the slag removal cavity, the slag pushing part moves towards the direction close to the slag outlet, and the moving stroke of the slag pushing part passes below the slag inlet.
9. The slag extractor of claim 8 wherein, The slag pushing part comprises a plurality of slag pushing plates connected in sequence, the upper portions of the slag pushing plates are matched to form a plurality of stepped surfaces, and the stepped surfaces gradually downwardly step by step towards the direction close to the slag outlet.
10. The slag extractor of claim 8 wherein, The slag outlet is upwardly and gradually expanded arranged towards the direction away from the slag removal cavity.