Purification column for pretreatment of dioxin

Abstract

The utility model relates to the technical field of dioxin pretreatment, in particular to a purification column for dioxin pretreatment, which comprises a column body and blocking parts, the two ends of the column body are respectively provided with a limiting mechanism, each blocking part is respectively arranged at the two ends of the column body through the limiting mechanisms, each blocking part comprises a mounting plate, and the mounting plates are arranged on the column body. A plurality of notches which are uniformly distributed are formed in the periphery of the mounting plate, movable blocks are arranged in the notches, mounting grooves are formed in the middles of the peripheries of the movable blocks and the mounting plate, and sealing rubber rings are arranged in the mounting grooves; the sealing device has the beneficial effects that by rotating a threaded rod, the threaded rod drives an abutting plate to move, a movable block can expand outwards along a notch in cooperation with a connecting rod, then a sealing rubber ring can be expanded, and at the moment, the sealing rubber ring is better attached to the inner wall of a column body; and the phenomenon that normal purification of dioxin is affected due to the fact that a gap is generated between the sealing rubber ring and the column body due to gas pressure in the using process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dioxin pretreatment, in particular to a purification column used for dioxin pretreatment. Background Art

[0002] Dioxin is a class of highly toxic chemicals, belonging to the class of polychlorinated biphenyls. The chemical structure of dioxin consists of two oxygen atoms and four chlorine atoms. They usually exist in the form of colorless and odorless solids, posing a serious threat to ecosystems and human health. Dioxin is a very dangerous environmental pollutant, and its release and spread need to be controlled through strict waste management and environmental protection measures. The content of dioxin in the environment is extremely low, so it is necessary to undergo homogenization, extraction, enrichment and purification to obtain samples that can be used for analytical research. The purification process of dioxin requires the use of dioxin purification columns. The purification columns for dioxin pretreatment usually include multi-layer silica gel column chromatography, activated alumina column chromatography, activated carbon silica gel column chromatography and other types.

[0003] In the prior art, a sealing rubber ring is generally provided between the column body and the plugging part of the purification column to increase the sealing between the column body and the plugging part. When purifying the gas, the gas needs to be pressurized to accelerate the gas passing through the purification column, which causes the sealing rubber ring to be subjected to greater pressure. The sealing rubber ring may separate from the column body, causing the sealing of the purification column to be damaged, thereby affecting the smooth progress of the dioxin purification work. Utility Model Content

[0004] The purpose of the utility model is to provide a purification column for dioxin pretreatment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a purification column for dioxin pretreatment, comprising a column body and a blocking part, wherein both ends of the column body are provided with limiting mechanisms, each of the blocking parts is respectively installed at both ends of the column body through the limiting mechanisms, and the blocking parts each include a mounting plate, and a hand-held part is fixedly installed in the middle of one side of the mounting plate away from each other, and a plurality of evenly distributed notches are provided on the outer periphery of the mounting plate, and a movable block is provided in the notch, and a mounting groove is provided in the movable block and the middle of the outer periphery of the mounting plate, and a sealing rubber ring is provided in the mounting groove, and a plurality of evenly distributed reset springs are fixedly installed in the middle of one side of the mounting plate away from each other, and an abutment plate is fixedly installed on one end of the reset spring away from the mounting plate, and a support plate is fixedly installed on each side of each movable block and the abutment plate close to each other, and connecting rods are rotatably installed on the surfaces of the two support plates;

[0006] The hand-held parts are symmetrically threadedly connected with threaded rods on one side away from each other, and the threaded rods are rotatably mounted on one end of the mounting plate close to the mounting plate on the same side away from the return spring.

[0007] Preferably, an air pipe is fixedly installed in the middle of the blocking portion, the abutment plates are slidably installed on the outer periphery of the air pipe on the same side, and an end cap is provided at one end of the air pipe away from the installation plate.

[0008] Preferably, guide grooves are provided in the middle of both side walls in the notch, guide blocks are slidably installed in the guide grooves, and pairs of guide blocks are fixedly installed in the middle of both sides of the movable block on the same side.

[0009] Preferably, an elastic compensation block is fixedly installed on a side of the movable block close to the trachea, and the elastic compensation blocks are fixedly installed in the notches on the same side on a side away from the movable block.

[0010] Preferably, a handle is fixedly mounted on one end of the threaded rod away from the mounting plate, and a plurality of evenly distributed anti-slip grooves are provided on the outer circumference of the handle.

[0011] Preferably, the limiting mechanism includes a plurality of plug-in slots, which are respectively opened at both ends of the column and the plug-in slots on the same side are distributed in a circular array, movable rods are slidably installed in the plug-in slots, and limiting blocks are fixedly installed on one side of the movable rods close to each other, and the limiting blocks are respectively slidably installed in the plug-in slots on the same side.

[0012] Preferably, the limit block is symmetrically fixed with compression springs on one side close to the movable rod, the compression springs are fixedly installed in the plug-in slots on the same side at one end away from the limit block, and the movable rod is movably installed with a pull ring at one end away from the limit block.

[0013] Preferably, a plurality of evenly distributed plug-in blocks are fixedly mounted on the side of the hand-held parts close to each other, and the plug-in blocks correspond to the plug-in slots one by one, and a limiting slot is provided in the middle of the side of the plug-in block close to the limiting block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The purification column for dioxin pretreatment proposed in the present invention rotates the threaded rod so that the threaded rod drives the abutment plate to move, and cooperates with the connecting rod to realize the expansion of the movable block outward along the notch, so that the sealing rubber ring can be expanded. At this time, the sealing rubber ring is more closely fitted to the inner wall of the column, so as to avoid the sealing rubber ring and the column body having a gap due to gas pressure during use, which affects the normal purification of dioxins. At the same time, the limiting block in the limiting mechanism cooperates with the limiting groove and the plug-in block to limit and fix the blocking part, so as to avoid excessive pressure in the column body, which causes the column body and the blocking part to separate from each other and affects the normal purification of dioxins. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the local structure of the blocking part of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the blocking part of the utility model;

[0019] Figure 4 This is a schematic diagram of the local structure of the mounting plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the local structure of the fixed limiting mechanism of the utility model.

[0021] In the figure: 1. column; 2. blocking part; 201. hand-held part; 202. sealing rubber ring; 203. mounting groove; 204. reset spring; 205. elastic compensation block; 206. support plate; 207. threaded rod; 208. handle; 209. abutment plate; 2010. connecting rod; 2011. notch; 2012. mounting plate; 2013. movable block; 2014. guide block; 2015. guide groove; 3. limiting mechanism; 301. limiting groove; 302. plug-in block; 303. limiting block; 304. compression spring; 305. movable rod; 306. plug-in groove; 4. air pipe; 5. end cover. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5The utility model provides a technical solution: a purification column for dioxin pretreatment, comprising a column 1 and a blocking part 2, wherein both ends of the column 1 are provided with a limiting mechanism 3, each blocking part 2 is respectively installed at both ends of the column 1 through the limiting mechanism 3, and the blocking part 2 includes a mounting plate 2012, and a hand-held part 201 is fixedly installed in the middle of one side of the mounting plate 2012 away from each other, and a plurality of evenly distributed notches 2011 are opened on the outer periphery of the mounting plate 2012, and a movable block 2013 is arranged in the notch 2011, and a mounting groove 203 is opened in the middle of the outer periphery of the movable block 2013 and the mounting plate 2012, and a sealing rubber ring 202 is arranged in the mounting groove 203, and a plurality of evenly distributed reset springs 204 are fixedly installed in the middle of one side of the mounting plate 2012 away from each other, and the reset spring 204 is away from the mounting plate 201 2, one end of each movable block 2013 is fixedly installed with an abutment plate 209, and each movable block 2013 and the abutment plate 209 are fixedly installed with a support plate 206 on the side close to each other. The surfaces of the two support plates 206 are rotatably installed with connecting rods 2010. The staff can install the two blocking parts 2 at both ends of the column 1 by using the limiting mechanism 3. At this time, the staff drives the threaded rod 207 to rotate by rotating the handle 208. Under the cooperation of the thread, the threaded rod 207 will move toward the inside of the handheld part 201, and then the abutment plate 209 will move synchronously. The movable block 2013 can be pushed outward in cooperation with the connecting rod 2010, and then the sealing rubber ring 202 can be more fully abutted against the inner wall of the column 1, avoiding the gap between the sealing rubber ring 202 and the column 1 due to gas pressure during use, thereby ensuring that the dioxin purification can be carried out normally.

[0024] The hand-held parts 201 are symmetrically threadedly connected with threaded rods 207 on the sides away from each other. The threaded rods 207 are rotatably installed on the ends of the mounting plate 2012 on the same side of the abutment plate 209 away from the return spring 204. The middle part of the blocking part 2 is fixedly installed with an air pipe 4, and the abutment plates 209 are slidably installed on the outer periphery of the air pipe 4 on the same side. The air pipe 4 is provided with an end cap 5 at one end away from the mounting plate 2012. By providing the air pipe 4, it is convenient for the staff to pass the gas containing dioxin through the column 1. At the same time, the end cap 5 is provided on the air pipe 4 to prevent external impurities or dust from entering the column 1 and affecting the purification of dioxins.

[0025] A guide groove 2015 is provided in the middle of both side walls of the slot 2011, and a guide block 2014 is slidably installed in the guide groove 2015. The two guide blocks 2014 are fixedly installed in the middle of both sides of the movable block 2013 on the same side, and the side of the movable block 2013 close to the trachea 4 is fixedly installed with an elastic compensation block 205, and the side of the elastic compensation block 205 away from the movable block 2013 is fixedly installed in the slot 2011 on the same side, and the end of the threaded rod 207 away from the mounting plate 2012 is fixedly installed with a handle 208 and the handle 208 is fixedly installed. 08 There are multiple evenly distributed anti-skid grooves on the outer periphery. By setting the guide block 2014 and the guide groove 2015, the movement of the movable block 2013 in the groove 2011 can be assisted, and the smoothness of the movement of the movable block 2013 can be increased. At the same time, the elastic compensation block 205 is made of elastic rubber, which can make up for the gap between the movable block 2013 and the groove 2011, and the elastic compensation block 205 will not affect the displacement of the movable block 2013, ensuring that the sealing rubber ring 202 can fit better on the inner wall of the column 1.

[0026] The limiting mechanism 3 includes a plurality of plug-in slots 306, which are respectively arranged at both ends of the column 1 and the plug-in slots 306 on the same side are distributed in a circular array, and movable rods 305 are slidably installed in the plug-in slots 306, and the movable rods 305 are fixedly installed with limit blocks 303 on the sides close to each other, and the limit blocks 303 are respectively slidably installed in the plug-in slots 306 on the same side, and the limit blocks 303 are symmetrically fixedly installed with compression springs 304 on the sides close to the movable rods 305, and the compression springs 304 are fixedly installed on the ends of the compression springs 304 away from the limit blocks 303, and the movable rods 305 are movably installed with pull rings on the ends away from the limit blocks 303, and a plurality of evenly distributed plug-in blocks 302 are fixedly installed on the sides close to each other of the hand-held parts 201, and the plug-in blocks 302 and The plug-in slots 306 correspond one to one, and the plug-in block 302 is provided with a limiting slot 301 in the middle of one side close to the limiting block 303. When the plug-in block 302 enters the plug-in slot 306, since the ends of the plug-in block 302 and the limiting block 303 are both wedge-shaped, at this time, the plug-in block 302 will compress the limiting block 303, so that the limiting block 303 moves toward the inside of the plug-in slot 306, and the compression spring 304 will be compressed. When the limiting block 303 moves to the position of the limiting slot 301, the compression spring 304 will reset the limiting block 303, so that the limiting block 303 is engaged in the limiting slot 301, and then the blocking part 2 can be limited, thereby avoiding the column 1 and the blocking part 2 from separating from each other due to excessive pressure in the column 1, thereby affecting the purification of dioxins.

[0027] When the plugging part 2 is installed, the staff will install the plug block 302 along the plug slot 306. At this time, the limit block 303 can cooperate with the compression spring 304 to be engaged in the limit slot 301. When the blocking part 2 is installed, by rotating the threaded rod 207, the abutment plate 209 cooperates with the connecting rod 2010, the notch 2011 and the movable block 2013 to expand the sealing rubber ring 202 outward, thereby ensuring that the sealing rubber ring 202 is more closely fitted to the inner wall of the column 1 and preventing displacement between the sealing rubber ring 202 and the column 1. At this time, the gas containing dioxins passes through the air pipe 4 to allow the gas to enter the column 1, thereby completing the purification of the dioxins. Moreover, when the staff needs to separate the blocking part 2 from the column 1, by pulling the pull ring, the movable rod 305 drives the limit block 303 to disengage from the limit slot 301, releases the limit between the blocking part 2 and the column 1, and then takes out the blocking part 2.

[0028] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A purification column for dioxin pretreatment, comprising a column body (1) and a plugging portion (2), wherein both ends of the column body (1) are provided with a limiting mechanism (3), and each of the plugging portions (2) is installed at both ends of the column body (1) through the limiting mechanism (3), characterized in that: The blocking parts (2) each comprise a mounting plate (2012), a hand-held part (201) being fixedly mounted in the middle of one side of the mounting plates (2012) away from each other, a plurality of evenly distributed notches (2011) being provided on the outer circumference of the mounting plates (2012), a movable block (2013) being provided in each of the notches (2011), a mounting groove (203) being provided in the middle of the outer circumference of the movable block (2013) and the mounting plate (2012), and a movable block (2013) being provided in each of the mounting grooves (203). A sealing rubber ring (202) is provided, a plurality of evenly distributed return springs (204) are fixedly installed in the middle of the side away from each other of the mounting plate (2012), an abutment plate (209) is fixedly installed at the end of the return spring (204) away from the mounting plate (2012), a support plate (206) is fixedly installed on the side close to each other of each movable block (2013) and the abutment plate (209), and connecting rods (2010) are rotatably installed on the surfaces of the two support plates (206); The hand-held parts (201) are symmetrically threadedly connected to the threaded rods (207) on the sides away from each other, and the threaded rods (207) are rotatably mounted on the side of the abutment plate (209) on the same side away from the return spring (204) at one end close to the mounting plate (2012).

2. A purification column for dioxin pretreatment according to claim 1, characterized in that: An air pipe (4) is fixedly mounted in the middle of the blocking portion (2), the abutment plates (209) are slidably mounted on the outer periphery of the air pipe (4) on the same side, and an end cap (5) is provided at one end of the air pipe (4) away from the mounting plate (2012).

3. A purification column for dioxin pretreatment according to claim 1, characterized in that: A guide groove (2015) is provided in the middle of both side walls of the notch (2011), and a guide block (2014) is slidably installed in each of the guide grooves (2015), and each pair of the guide blocks (2014) is fixedly installed in the middle of both sides of the movable block (2013) on the same side.

4. A purification column for dioxin pretreatment according to claim 1, characterized in that: The movable block (2013) is fixedly mounted with an elastic compensation block (205) on the side close to the trachea (4), and the elastic compensation block (205) is fixedly mounted in the notch (2011) on the same side on the side away from the movable block (2013).

5. A purification column for dioxin pretreatment according to claim 1, characterized in that: A handle (208) is fixedly mounted on one end of the threaded rod (207) away from the mounting plate (2012), and a plurality of evenly distributed anti-slip grooves are provided on the outer circumference of the handle (208).

6. A purification column for dioxin pretreatment according to claim 1, characterized in that: The limiting mechanism (3) comprises a plurality of plug-in slots (306), the plug-in slots (306) being respectively arranged at both ends of the column (1) and the plug-in slots (306) on the same side being distributed in a circular array, movable rods (305) being slidably mounted in the plug-in slots (306), and limiting blocks (303) being fixedly mounted on one side of the movable rods (305) close to each other, and the limiting blocks (303) being slidably mounted in the plug-in slots (306) on the same side.

7. A purification column for dioxin pretreatment according to claim 6, characterized in that: A compression spring (304) is symmetrically fixedly installed on one side of the limit block (303) close to the movable rod (305); one end of the compression spring (304) away from the limit block (303) is fixedly installed in the same-side plug-in slot (306); and a pull ring is movably installed on one end of the movable rod (305) away from the limit block (303).

8. A purification column for dioxin pretreatment according to claim 1, characterized in that: A plurality of evenly distributed plug-in blocks (302) are fixedly mounted on one side of the hand-held portion (201) close to each other, and the plug-in blocks (302) correspond to the plug-in slots (306) one by one. A limiting slot (301) is provided in the middle of one side of the plug-in block (302) close to the limiting block (303).

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