A hazardous waste crushing leak-proof sealing treatment bin

Abstract

The utility model relates to the technical field of sealed treatment bin, disclose a kind of hazardous waste crushing leakproof sealing treatment bin, including outer shell, the inside sealing mechanism of outer shell is equipped with, the effect of sealing mechanism is to strengthen sealing, the inside cleaning mechanism of sealing mechanism is equipped with, and sealing mechanism includes inner shell, the front side of inner shell is fixedly connected with inner shell cover plate, the front side middle part of inner shell cover plate is rotatably connected with sealing door one, the front side of outer shell is fixedly connected with outer shell plate, the top of outer shell is fixedly connected with air extractor. In the utility model, sealing door one is sheared and crushed to residual hazardous waste and is pushed into inner shell with sealing door one rotating closing, and air extractor is extracted into the remaining air in the cavity between outer shell and inner shell cover plate to form internal and external negative pressure, and the mechanism uses double-layer sealing structure to isolate internal hazardous waste in all directions, solve the problem of high volatile hazardous waste gas leakage risk.

Description

Technical Field

[0001] This utility model relates to the field of sealed treatment chamber technology, and in particular to a leak-proof sealed treatment chamber for hazardous waste crushing. Background Technology

[0002] The hazardous waste crushing and leak-proof sealed treatment chamber is a special closed-loop equipment designed for crushing hazardous waste, such as waste chemical containers, contaminated packaging materials, and medical waste. Its core function is to prevent toxic and harmful gases, liquids, or dust generated during the crushing process from leaking into the external environment through a strict sealing design, while also preventing operators from directly contacting hazardous substances. It is a key piece of equipment in the process of reducing the volume and rendering harmless the hazardous waste. Its main structure includes a sealed chamber, a crushing system, feeding and discharging devices, a waste gas and waste liquid collection and treatment system, and a control system and safety devices.

[0003] Traditional processing chambers often use a single-door sealing structure for the inlet. When the door is opened to allow material to enter, the negative pressure environment inside the chamber is disrupted, easily leading to the leakage of toxic gases. When the door is closed, the fit between the door and the frame is not tight, and if there is material residue, it will create a sealing gap, causing continuous leakage. To solve these problems, existing technologies have improved the situation by adding sealing strips around the door frame and installing cleaning scrapers. However, in practical applications, the single-door structure cannot completely avoid the instantaneous pressure fluctuations when the door is opened and closed, and the risk of gas leakage from highly volatile hazardous waste remains high. The sealing strips cannot actively increase the pressure between the door and the frame, resulting in limited airtightness, and the scrapers cannot clean large pieces of debris, thus limiting their effectiveness. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a hazardous waste crushing and leak-proof sealed treatment chamber, which aims to improve the problems in the existing single-door structure that can never avoid instantaneous pressure fluctuations when opening and closing the door, the high risk of gas leakage from highly volatile hazardous waste, the inability of the sealing strip to actively increase the pressure between the door and the door frame, the limited airtightness, and the inability of the scraper to clean large pieces of debris, thus limiting the effectiveness.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a hazardous waste crushing and leak-proof sealed treatment chamber, comprising an outer shell, a sealing mechanism installed inside the outer shell to enhance sealing, a cleaning mechanism installed inside the sealing mechanism to clean residual hazardous waste debris, the sealing mechanism comprising an inner shell, the inner shell being fixedly connected to the inner bottom wall of the outer shell, an inner shell cover plate fixedly connected to the front side of the inner shell, a sealing door rotatably connected to the center of the front side of the inner shell cover plate, a shearing strip fixedly connected to the center of the front side of the inner shell cover plate, an outer shell plate fixedly connected to the front side of the outer shell, a sealing door rotatably connected to the center of the front side of the outer shell plate, an air extractor fixedly connected to the top of the outer shell, an air extraction pipe connected to the rear side of the air extractor, the air extraction pipe being connected to the top rear side of the outer shell, and air sealing components installed around the sealing door 2.

[0006] As a further description of the above technical solution:

[0007] The sealing mechanism includes a miniature air pump, which is installed in the front outer wall of the sealing door. The rear side of the miniature air pump is connected to an inner air supply pipe, and the inner air supply pipe is connected to an outer expansion pipe around its perimeter. The outer expansion pipe is fixedly connected to the outer wall of the sealing door.

[0008] As a further description of the above technical solution:

[0009] The cleaning mechanism includes a motor, which is installed on the rear outer wall of the inner shell cover. A motor housing is fixedly connected to the outer side of the motor. A gear is fixedly connected to the output end of the motor. A rack is meshed with the front side of the gear. A support beam is fixedly connected to the right side of the motor. A scraping component is installed on the top right side of the rack.

[0010] As a further description of the above technical solution:

[0011] The scraping assembly includes a connecting shaft, which is rotatably connected to the middle of a gear. Brush bristles are fixedly connected to the top of the outer wall of the connecting shaft, and a scraper is fixedly connected to the bottom of the outer wall of the connecting shaft.

[0012] As a further description of the above technical solution:

[0013] A door hinge is fixedly connected to the left side of the second sealing door, and the door hinge is rotatably connected to the left side of the outer shell plate.

[0014] As a further description of the above technical solution:

[0015] A door hinge 2 is fixedly connected to the left side of the sealing door 1, and the door hinge 2 is rotatably connected to the right side of the inner shell cover plate.

[0016] As a further description of the above technical solution:

[0017] Two sliding grooves are provided on the rear side of the inner shell cover, and the motor housing is slidably connected to the rear side of the inner shell cover through the sliding grooves.

[0018] As a further description of the above technical solution:

[0019] The left end of the connecting shaft is fixedly connected to a limit cover, and the rear end of the micro air pump is fixedly connected to a fixing plate. The micro air pump is fixedly connected to the middle of the front outer wall of the second sealing door through the fixing plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the serrated cutting edge on the sealing door engages with the shearing strip on the inner shell cover plate, shearing and crushing the residual hazardous waste and pushing it into the inner shell as the sealing door rotates and closes. A micro air pump injects high-pressure air into the air sealing assembly, sealing the tiny gap between the outer shell plate and the sealing door. Finally, the air pump is turned on to draw in the remaining air in the cavity between the outer shell and the inner shell cover plate, forming a negative pressure inside and outside. This mechanism uses a double-layer sealing structure to isolate the internal hazardous waste in all directions, solving the problems of high risk of leakage of highly volatile hazardous waste gas and limited airtightness of the sealing strip.

[0022] 2. In this utility model, the starting motor drives the gear to rotate on the rack. The rotation of the gear drives the motor and the scraping assembly to move longitudinally along the rack. The reversing motor can move in the opposite direction. The motor housing fixes the motor and supports its sliding. The connecting shaft drives the scraper to scrape off hazardous waste debris or particles from the inner wall of the sealed door. The brush moves synchronously to sweep away fine particles, preventing hazardous waste from escaping from the outer shell when the sealed door is opened. The supporting longitudinal beam assists in supporting the connecting shaft, which slides back and forth within it. This mechanism can sweep without directly contacting hazardous waste debris, further reducing the risk of spillage. Attached Figure Description

[0023] Figure 1 This is a front view of a hazardous waste crushing and leak-proof sealed treatment chamber proposed in this utility model;

[0024] Figure 2 This is a perspective view of a hazardous waste crushing and leak-proof sealed treatment chamber proposed in this utility model;

[0025] Figure 3 This is a split view of the sealing mechanism of a hazardous waste crushing and leak-proof sealing treatment chamber proposed in this utility model;

[0026] Figure 4 This is a split view of the gas seal assembly of a hazardous waste crushing and leak-proof sealing treatment chamber proposed in this utility model;

[0027] Figure 5This is a split view of the cleaning mechanism of a hazardous waste crushing and leak-proof sealed treatment chamber proposed in this utility model;

[0028] Figure 6 This is an exploded view of the scraping component of a hazardous waste crushing and leak-proof sealing treatment chamber proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Sealing mechanism; 201. Inner shell; 202. Inner shell cover; 203. Sealing door one; 204. Shearing strip; 205. Sealing door two; 206. Air seal assembly; 2061. Miniature air pump; 2062. Inner air supply pipe; 2063. Outer expansion pipe; 207. Outer shell plate; 208. Air extractor; 209. Air extraction pipe; 3. Cleaning mechanism; 301. Motor one; 302. Gear; 303. Rack; 304. Support longitudinal beam; 305. Motor housing; 306. Scraper assembly; 3061. Connecting shaft; 3062. Brush bristles; 3063. Scraper; 4. Door hinge one; 5. Door hinge two; 6. Slide groove; 7. Limiting round cover; 8. Fixing plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of a hazardous waste crushing and leak-proof sealed treatment chamber, comprising an outer shell 1, a sealing mechanism 2 installed inside the outer shell 1, the sealing mechanism 2 being used to enhance the seal, and a cleaning mechanism 3 installed inside the sealing mechanism 2, the cleaning mechanism 3 being used to clean up residual hazardous waste debris.

[0033] The sealing mechanism 2 includes an inner shell 201, which is fixedly connected to the inner bottom wall of the outer shell 1. An inner shell cover plate 202 is fixedly connected to the front side of the inner shell 201. A sealing door 203 is rotatably connected to the middle of the front side of the inner shell cover plate 202. A shearing strip 204 is fixedly connected to the middle of the front side of the inner shell cover plate 202. An outer shell plate 207 is fixedly connected to the front side of the outer shell 1. A sealing door 205 is rotatably connected to the middle of the front side of the outer shell plate 207. An air extractor 208 is fixedly connected to the top of the outer shell 1. An air extraction pipe 209 is connected to the rear side of the air extractor 208. The air extraction pipe 209 is connected to the top of the rear side of the outer shell 1. Air sealing components 206 are installed around the sealing door 205.

[0034] The sealing mechanism 2 includes a miniature air pump 2061, which is installed in the front outer wall of the sealing door 205. The rear side of the miniature air pump 2061 is connected to an inner air supply pipe 2062, and an outer expansion pipe 2063 is connected to all four sides of the inner air supply pipe 2062. The outer expansion pipe 2063 is fixedly connected to all four sides of the outer wall of the sealing door 205.

[0035] A door hinge 4 is fixedly connected to the left side of the second sealing door 205. The door hinge 4 is rotatably connected to the left side of the outer shell plate 207. A door hinge 5 is fixedly connected to the left side of the first sealing door 203. The door hinge 5 is rotatably connected to the right side of the inner shell cover plate 202.

[0036] Specifically, the operator first opens sealing door 205 and sealing door 203, placing the hazardous waste to be treated into the inner shell 201 through the openings. The hazardous waste will be crushed and temporarily stored inside the inner shell 201 by a specialized crushing device. Once all the hazardous waste to be treated has been transferred to the inner shell 201, the operator rotates sealing door 203 to close it. At this time, the serrated edge of sealing door 203 will engage with the shearing strip 204 on the inner shell cover 202, creating significant pressure at the contact point. This pressure shears and crushes the hazardous waste remaining on the serrated edge and shearing strip 204, pushing it into the inner shell 201 as sealing door 203 continues to rotate and close. Subsequently, the waste is processed in the same manner... After the sealing door 205 is closed and the entire closing process is completed, the micro air pump 2061 is started. The micro air pump 2061 injects high-pressure air into the air-sealing assembly 206. The air is delivered to the expansion outer tube 2063 through the inner air supply pipe 2062, causing the expansion outer tube 2063 to expand and tightly fill any tiny gaps that may exist between the outer shell plate 207 and the sealing door 205 to seal them. Finally, the switch of the air extractor 208 is turned on. The air extractor 208 runs and draws in the remaining air in the cavity between the outer shell 1 and the inner shell cover plate 202, so that a negative pressure state is formed inside the cavity. Therefore, when the sealing door is opened again, the harmful air inside the inner shell 201 will not quickly overflow.

[0037] Reference Figure 2 , Figure 5 and Figure 6 The cleaning mechanism 3 includes a motor 301, which is installed on the rear outer wall of the inner shell cover 202. A motor housing 305 is fixedly connected to the outer side of the motor 301. A gear 302 is fixedly connected to the output end of the motor 301. A rack 303 is meshed with the front side of the gear 302. A support beam 304 is fixedly connected to the right side of the motor 301. A scraping assembly 306 is installed on the top right side of the rack 303.

[0038] The scraping assembly 306 includes a connecting shaft 3061, which is rotatably connected to the middle of the gear 302. Brush bristles 3062 are fixedly connected to the top of the outer wall of the connecting shaft 3061, and a scraper 3063 is fixedly connected to the bottom of the outer wall of the connecting shaft 3061.

[0039] Two sliding grooves 6 are provided on the rear side of the inner shell cover plate 202. The motor housing 305 is slidably connected to the rear side of the inner shell cover plate 202 through the sliding grooves 6. The motor housing 305 slides on the sliding grooves 6 and drives the motor 301 to slide.

[0040] Specifically, starting motor 301 causes its output shaft to rotate. The rotation of the output shaft drives gear 302 to mesh and rotate on the teeth of rack 303. As gear 302 continues to rotate, it drives motor 301 and the connected scraping assembly 306 to move longitudinally along the length of rack 303 through its fixed connection with motor 301. If a change in direction is needed, reversing the motor's rotation direction will cause gear 302 to rotate in the opposite direction, thus driving the entire assembly to move in the opposite direction. Motor housing 305 is fixed to the outer shell of motor 301, supporting motor 301 and assisting its smooth sliding during movement. Connecting shaft 3061... One end is connected to the motor housing 305 and the other end is connected to the scraper 3063. During the overall movement, the scraper 3063 is driven to contact the inner wall of the sealing door 203 to scrape off the hazardous waste debris or particles remaining thereon. At the same time, the bristles 3062 are fixed to the edge of the scraper 3063 and move synchronously with the scraper 3063. Through friction with the inner wall, fine particles are swept away, preventing the hazardous waste debris or particles inside the door from escaping out of the outer shell 1 when the sealing door 203 is opened. The support beam 304 is vertically installed inside the outer shell 1 and is equipped with a track auxiliary support connecting shaft 3061. The connecting shaft 3061 passes through the through hole and performs reciprocating sliding motion with the overall movement.

[0041] Reference Figure 1 and Figure 6 The left end of the connecting shaft 3061 is fixedly connected to the limiting round cover 7, and the rear end of the micro air pump 2061 is fixedly connected to the fixing plate 8. The micro air pump 2061 is fixedly connected to the middle of the front outer wall of the sealing door 205 through the fixing plate 8.

[0042] Specifically, the function of the limiting round cover 7 is to prevent the connecting shaft 3061 from shifting position when the supporting longitudinal beam 304 moves up and down, so as to keep it running in a straight line. The fixing plate 8 is set at one end of the micro air pump 2061 near the air outlet and is fixed at the four corners with multiple bolts to ensure its connection is secure.

[0043] Working principle: First, open sealing door 205 and sealing door 203, and place the hazardous waste in the inner shell 201. The waste will be crushed and temporarily stored in the inner shell 201. After all the hazardous waste has been transferred, rotate and close sealing door 203. At this time, the serrated cutting edge on sealing door 203 will engage with the shearing strip 204 on the inner shell cover 202, creating a huge pressure that shears and crushes the remaining hazardous waste. As sealing door 203 rotates and closes, the waste is pushed into the inner shell 201. Then, close sealing door 205. After completing the closing process, start the micro air pump 2061 to inject high-pressure air into the air seal assembly 206. The air travels through the inner air supply pipe 2062 to the outer expansion pipe 206. In step 63, the expansion tube 2063 expands to seal any possible tiny gaps between the outer shell 207 and the sealing door 205. Finally, the exhaust fan 208 is turned on to draw in the remaining air in the cavity between the outer shell 1 and the inner shell cover 202, creating a negative pressure inside and outside. As a result, when the inner shell 201 is opened again, the harmful air inside will not escape quickly. This mechanism uses a double-layer sealing structure to isolate the hazardous waste inside in all directions. It has good airtightness and solves the problems that a single-door structure can never avoid instantaneous pressure fluctuations when opening and closing the door, the risk of gas leakage of highly volatile hazardous waste is still relatively high, the sealing strip cannot actively increase the pressure between the door and the door frame, the airtightness is limited, and it cannot clean up large pieces of debris, thus having limited effectiveness.

[0044] The motor 301 is started, which drives the gear 302 to rotate on the rack 303. As the gear 302 rotates, it drives the motor 301 and the scraping assembly 306 to move longitudinally along the rack 303. Reversing the motor rotation reverses the direction of rotation, thus reversing the movement. The motor housing 305 fixes the motor 301 and supports its sliding. The connecting shaft 3061 drives the scraper 3063 to scrape away hazardous waste debris or particles remaining on the inner wall of the sealed door 203. At the same time, the brush bristles 3062 move synchronously with the motor to sweep away fine particles, preventing hazardous waste from escaping from the inner side of the sealed door 203 when it is opened. The support beam 304 provides auxiliary support for the connecting shaft 3061, which reciprocates within it. This mechanism can remove hazardous waste debris without directly disposing of it, further reducing the risk of spillage.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A hazardous waste crushing and leak-proof sealed treatment chamber, comprising an outer shell (1), characterized in that: The outer shell (1) is equipped with a sealing mechanism (2), which is used to strengthen the seal. The sealing mechanism (2) is also equipped with a cleaning mechanism (3), which is used to clean up residual hazardous waste debris. The sealing mechanism (2) includes an inner shell (201), which is fixedly connected to the inner bottom wall of the outer shell (1). An inner shell cover plate (202) is fixedly connected to the front side of the inner shell (201). A sealing door (203) is rotatably connected to the middle of the front side of the inner shell cover plate (202). A shearing strip (204) is fixedly connected to the middle of the front side of the inner shell cover plate (202). An outer shell plate (207) is fixedly connected to the front side of the outer shell (1). A sealing door (205) is rotatably connected to the middle of the front side of the outer shell plate (207). An air extractor (208) is fixedly connected to the top of the outer shell (1). An air extraction pipe (209) is connected to the rear side of the air extractor (208). The air extraction pipe (209) is connected to the top of the rear side of the outer shell (1). Air sealing components (206) are installed around the sealing door (205).

2. The hazardous waste crushing and leak-proof sealed treatment chamber according to claim 1, characterized in that: The sealing mechanism (2) includes a micro air pump (2061), which is installed in the front outer wall of the sealing door (205). The rear side of the micro air pump (2061) is connected to an inner air supply pipe (2062), and the inner air supply pipe (2062) is connected to an outer expansion pipe (2063) around its perimeter. The outer expansion pipe (2063) is fixedly connected to the outer wall of the sealing door (205) around its perimeter. The rear end of the micro air pump (2061) is fixedly connected to a fixing plate (8), and the micro air pump (2061) is fixedly connected to the middle of the front outer wall of the sealing door (205) through the fixing plate (8).

3. The hazardous waste crushing and leak-proof sealed treatment chamber according to claim 1, characterized in that: The cleaning mechanism (3) includes a motor (301), which is installed on the rear outer wall of the inner shell cover (202). A motor housing (305) is fixedly connected to the outer side of the motor (301). A gear (302) is fixedly connected to the output end of the motor (301). A rack (303) is meshed with the front side of the gear (302). A support beam (304) is fixedly connected to the right side of the motor (301). A scraping component (306) is installed on the top right side of the rack (303).

4. The hazardous waste crushing and leak-proof sealed treatment chamber according to claim 3, characterized in that: The scraping assembly (306) includes a connecting shaft (3061), which is rotatably connected to the middle of the gear (302). Brush bristles (3062) are fixedly connected to the top of the outer wall of the connecting shaft (3061), and a scraper (3063) is fixedly connected to the bottom of the outer wall of the connecting shaft (3061).

5. The hazardous waste crushing and leak-proof sealed treatment chamber according to claim 1, characterized in that: The left side of the second sealing door (205) is fixedly connected to the first door hinge (4), and the first door hinge (4) is rotatably connected to the left side of the outer shell plate (207).

6. The hazardous waste crushing and leak-proof sealed treatment chamber according to claim 1, characterized in that: The left side of the sealing door (203) is fixedly connected to the door hinge (5), and the door hinge (5) is rotatably connected to the right side of the inner shell cover (202).

7. The hazardous waste crushing and leak-proof sealed treatment chamber according to claim 3, characterized in that: Two sliding grooves (6) are provided on the rear side of the inner shell cover (202), and the motor housing (305) is slidably connected to the rear side of the inner shell cover (202) through the sliding grooves (6).

8. The hazardous waste crushing and leak-proof sealed treatment chamber according to claim 4, characterized in that: The left end of the connecting shaft (3061) is fixedly connected to a limiting round cover (7).

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