Corrosion-resistant solution dropwise adding and vacuum filtering device for chemical production

Abstract

The utility model provides a corrosion-resistant solution dripping and vacuum filtering device for chemical production, and belongs to the technical field of chemical production equipment. The infusion apparatus comprises an outer sleeve, an inner sleeve and an infusion connector, an inner thread adjusting nut is arranged at the open end of the outer sleeve, a plurality of first vacuum holes are formed in one side of the wall of the outer sleeve in the axial direction, and a plurality of first dripping vacuum holes are formed in the other side of the wall of the outer sleeve in the axial direction; the inner sleeve is sleeved with the outer sleeve, a second vacuum hole is formed in one side of the wall of the inner sleeve in the axial direction, and a second dropwise adding vacuum hole is formed in the other side of the wall of the inner sleeve in the axial direction; the infusion connector is arranged at the end, not provided with the sealing head, of the outer sleeve and connected with the inner sleeve, and external threads are arranged on the infusion connector and matched with the internal threads on the outer sleeve. Meanwhile, the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production equipment, and specifically, relates to a corrosion-resistant solution dropping and vacuum filtering device for chemical production. Background Art

[0002] In the chemical production process, a raw material solution dripping process is often designed to disperse and drip a solution with a certain pressure into the reactor, or to extract the airflow in the reactor and filter out impurities in the airflow.

[0003] In the prior art, the raw material solution dripping and vacuuming process adopts a sieve hole spraying and filtering device. During the dripping process, the solution is sprayed into the reactor through the sieve hole spraying and filtering device through the infusion pump and mixed with the raw material; during the vacuuming process, the pipeline is switched to the vacuum pipeline, and the vacuum pump is started. The airflow in the reactor passes through the sieve hole spraying and filtering device to filter the solid particles entrained in the airflow and then discharge it. This device has the advantage of simple structure, but during the solution dripping process, since the sieve hole of the device cannot be adjusted, the direction of the raw material solution dripping cannot be controlled and the dispersion is uneven; during the vacuum filtration process, certain solid particles of the raw material in the reactor are carried out with the airflow under the stirring action, which is easy to block the pipeline and equipment, affecting normal production and the material is not corrosion-resistant.

[0004] In this regard, Chinese patent document 215693803U discloses a new type of nozzle for a dripping device, wherein the nozzle is placed in a kettle, and the collar drives the umbrella-shaped shield to rotate under the action of a driving mechanism, so that the falling material liquid is dispersed to the surroundings under the action of the centrifugal force generated by the rotation of the umbrella-shaped shield to increase the distribution area of ​​the material liquid, and the atomized material liquid is blocked under the blocking of the umbrella-shaped shield, so that it is quickly condensed and liquefied on the surface of the umbrella-shaped shield, and is sprinkled and added through the drainage groove, reducing the atomization of the material liquid, so that the material liquid can be mixed and reacted with the processed product in time. The device has a complex structure, especially the connection between the driving mechanism and the kettle stirring shaft consumes motor power and increases costs, and it cannot realize multiple functions of one nozzle.

[0005] Therefore, there is an urgent need for a new corrosion-resistant solution dripping and vacuum filtration device which has a simple structure, low manufacturing cost, and can meet the needs of chemical production. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the utility model provides a corrosion-resistant solution dripping and vacuum filtration device for chemical production, which realizes multiple functions of one nozzle, including:

[0007] An outer sleeve, wherein one end of the outer sleeve is open and the other end is provided with a sealing head, the open end of the outer sleeve is provided with an internal thread adjustment nut, and the tube wall of the outer sleeve is provided with a plurality of first vacuum holes on one side along the axial direction and a plurality of first dripping vacuum holes on the other side;

[0008] An inner sleeve, wherein the inner sleeve is sleeved inside the outer sleeve and has a sealing head at one end. A plurality of second vacuum holes are arranged on one side of the inner sleeve wall along the axial direction, and a plurality of second dripping vacuum holes are arranged on the other side. The second vacuum holes and the first vacuum holes, as well as the first dripping vacuum holes and the second dripping vacuum holes, are arranged correspondingly.

[0009] An infusion connector is arranged at the open end of the outer sleeve and connected to the inner sleeve. The infusion connector is provided with an external thread and cooperates with the internal thread adjustment nut on the outer sleeve.

[0010] Furthermore, an adjustment slot is provided on the externally threaded infusion connector.

[0011] Furthermore, a return spring is provided at the joint between the infusion connector and the outer sleeve.

[0012] Furthermore, a sealing gasket is provided at the joint between the infusion connector and the outer sleeve.

[0013] Furthermore, the outer sleeve is provided with a sealing head on one side, and a limiting device is arranged inside.

[0014] Furthermore, the limiting device includes a first positioning guide rod, a second positioning guide rod, a first limiting rod and a second limiting rod.

[0015] Furthermore, the first positioning guide rod is arranged in parallel with the second positioning guide rod, one end of the first positioning guide rod and the second positioning guide rod are connected to the inner side of the outer sleeve head, and the other ends pass through the inner sleeve head; the first limiting rod is vertically arranged at one end of the first positioning guide rod and the second positioning guide rod passing through the inner sleeve head, and the second limiting rod is vertically arranged in the middle of the first positioning guide rod and the second positioning guide rod.

[0016] Furthermore, the distance between the first positioning guide rod and the second positioning guide rod is consistent with the sum of the length of the vacuum hole and the thickness of the inner sleeve head.

[0017] Furthermore, sealing rings are provided at the positions where the first positioning guide rod and the second positioning guide rod pass through the inner sleeve head.

[0018] Furthermore, the inner sleeve, outer sleeve and infusion connector are all made of PVC material.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The utility model realizes the two functions of dripping and vacuuming by using one pipe mouth through a simple structure by arranging the first vacuum hole and the second vacuum hole, as well as the first dripping vacuum hole and the second dripping vacuum hole on the inner pipe sleeve and the outer pipe sleeve, and the manufacturing cost is low.

[0021] 2. The utility model can effectively improve the accuracy of the displacement of the inner pipe sleeve by arranging a limit device on the inner side of the outer pipe sleeve head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of a preferred embodiment of the utility model in a vacuum function state;

[0023] Figure 2 A bottom view of a preferred embodiment of the utility model in a vacuum function state;

[0024] Figure 3 It is a front view of a preferred embodiment of the utility model in a dripping function state;

[0025] Figure 4 It is a bottom view of a preferred embodiment of the utility model in a dripping function state.

[0026] In the figure: 1 infusion connector; 2 internal thread adjustment nut; 3-1 first vacuum hole; 3-2 second vacuum hole; 4 limit device; 5-1 first dripping vacuum hole; 5-2 second dripping vacuum hole; 6 adjustment slot; 7 sealing gasket; 8-1 first limit rod 8-2 second limit rod 9 inner sleeve; 10 outer sleeve 12-1 first positioning guide rod; 12-2 second positioning guide rod. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1-4 The utility model provides a corrosion-resistant solution dripping and vacuum filtering device for chemical production, which realizes that a nozzle has two functions of dripping and vacuum, including:

[0031] An outer sleeve 10, one end of the outer sleeve 10 is open, and the other end is provided with a head, the open end of the outer sleeve 10 is provided with an internal thread adjustment nut 2, and the tube wall of the outer sleeve 10 is provided with a plurality of first vacuum holes 3-1 on one side along the axial direction, and a plurality of first dripping vacuum holes 5-1 on the other side, and the length of the first dripping vacuum hole 5-1 is greater than the first vacuum hole 3-1;

[0032] An inner sleeve 9, wherein the inner sleeve 9 is sleeved inside the outer sleeve 10 and can slide axially along the outer sleeve 10, a sealing head is provided at one end of the inner sleeve 9, and a second vacuum hole 3-2 is provided on the tube wall of the inner sleeve 9 along the axial direction on the same side as the first vacuum hole 3-1 of the outer sleeve 10, and a second dripping vacuum hole 5-2 is provided on the same side as the first dripping vacuum hole 5-1 of the outer sleeve 10; the first vacuum hole 3-1 has the same size as the second vacuum hole 3-2, and the first dripping vacuum hole 5-1 has the same size as the second dripping vacuum hole 5-2. At the same time, in order to ensure moderate pressure, the lengths of the first dripping vacuum hole and the second dripping vacuum hole 5-2 are both twice the lengths of the first vacuum hole 3-1 and the second vacuum hole 3-2; the second vacuum hole 3-2 and the first vacuum hole 3-1, and the second dripping vacuum hole 5-2 and the first dripping vacuum hole 5-1 are all correspondingly arranged;

[0033] An infusion connector 1 is arranged at the end of the outer sleeve 10 where no cap is provided, i.e., the open end, and is integrally connected with the inner sleeve 9. An external thread is provided on the infusion connector 1, and the external thread cooperates with the internal thread adjustment nut 2 on the outer sleeve 10. By rotating the internal thread adjustment nut 2, the infusion connector 1 and the inner sleeve 9 can be driven to slide axially along the outer sleeve 10 in the outer sleeve 10.

[0034] During use, when the solution dripping function is required, the internal thread adjustment nut 2 is rotated to make the infusion connector 1 and the inner sleeve 9 integrally connected to the infusion connector move linearly to the right in the figure along the axial direction until the first vacuum hole 3-1 and the second vacuum hole 3-2 are staggered and in a sealed closed state. At this time, the first dripping vacuum hole 5-1 and the second dripping vacuum hole 5-2 partially overlap to form a gap for the solution to pass through. The positional relationship at this time is as shown in FIG. Figure 3-4 As shown, then, one end of the infusion connector 1 is switched to the external solution dripping pipeline, the dripping pump is started, and the solution with a certain pressure enters the inner sleeve 9 through the infusion connector 1, and finally is evenly dispersed and dripped into the reactor through the gap of the overlapping part of the first dripping vacuum hole 5-1 and the second dripping vacuum hole 5-2, and is mixed with the raw material under the stirring action of the reactor; at the same time, the dripping direction can also be changed by changing the direction of the first dripping vacuum hole 5-1 and the second dripping vacuum hole 5-2.

[0035] When the vacuum filtration function is required, the internal thread adjustment nut 2 is rotated to make the infusion connector 1 and the inner sleeve 9 integrally connected to the infusion connector 1 move linearly to the left side of the figure along the axial direction. During the displacement process, the first vacuum hole 3-1 and the second vacuum hole 3-2 gradually overlap and change from a closed state to an open state. At the same time, the first dripping vacuum hole 5-1 and the second dripping vacuum hole 5-2 also gradually change from a partial overlap to a complete overlap. The positional relationship at this time is as shown in FIG. Figure 1-2 As shown; then switch the infusion connector 1 to the external vacuum pipe, start the vacuum pump, and filter and extract the airflow in the reactor through the vacuum hole and the dripping vacuum hole to achieve the purpose of filtering the solid particulate material mixed in the airflow.

[0036] In a preferred embodiment, if Figure 2 , Figure 4 As shown, the infusion connector 1 is also provided with an adjustment slot 6, and the adjustment slot 6 is located on both sides of the infusion connector 1, and is used to fix the infusion connector 1 using an external device (such as a caliper) during rotation, so as to prevent the infusion connector 1 and the outer sleeve 10 from rotating relative to each other, resulting in the first vacuum hole 3-1 and the second vacuum hole 3-2, as well as the first dripping vacuum hole 5-1 and the second dripping vacuum hole 5-2 not being able to correctly overlap.

[0037] In a preferred embodiment, a return spring 11 is further provided at the joint between the infusion connector 1 and the outer sleeve 10. The return spring 11 is used to assist the device in switching from a dripping state to a vacuum state, thereby improving the smoothness of the switching.

[0038] In a preferred embodiment, a sealing gasket 7 is further provided at the joint between the infusion connector 1 and the outer sleeve 10, and the sealing gasket 7 is used to seal the joint between the infusion connector 1 and the outer sleeve 10 to prevent water / gas leakage.

[0039] In a preferred embodiment, if Figure 1-4 As shown, a limiting device 4 is provided on the unopened side of the outer sleeve 10, and the limiting device 4 is used to improve the accuracy of the displacement distance of the inner sleeve 9 when the device is switched between the vacuum state and the dripping state.

[0040] In a preferred embodiment, if Figure 3 As shown, the limiting device 4 includes a first positioning guide rod 12-1, a second positioning guide rod 12-2, a first limiting rod 8-1 and a second limiting rod 8-2; the first positioning guide rod 12-1 and the second positioning guide rod 12-2 are arranged in parallel, one end of the first positioning guide rod 12-1 and the second positioning guide rod 12-2 are connected to the inner side of the head of the outer sleeve 10, and the other end passes through the head of the inner sleeve 9; the first limiting rod 8-1 is vertically arranged at one end of the first positioning guide rod 12-1 and the second positioning guide rod 12-2 passing through the head of the inner sleeve 9, and the second limiting rod 8-2 is vertically arranged in the middle of the first positioning guide rod 12-1 and the second positioning guide rod 12-2 to form a limiting interval, and the first limiting rod 8-1 and the second limiting rod 8-2 respectively form limiting parts.

[0041] The first limiting rod 8-1 arranged inside the inner sleeve forms a vacuum limiting part. When the end cap of the inner sleeve 9 moves to the first limiting rod 8-1, the device switches to the vacuum mode. The second limiting rod 8-2 arranged outside the inner sleeve forms a dripping limiting part. When the end cap of the inner sleeve 9 moves to the second limiting rod 8-2, the device switches to the dripping mode.

[0042] The distance between the first limit rod 8-1 and the second limit rod 8-2 is equal to the sum of the length of the first vacuum hole 3-1 or the second vacuum hole 3-2 and the thickness of the inner sleeve head, that is, when the head of the inner sleeve 9 slides from the first limit rod 8-1 of the vacuum limit part to the second limit rod 8-2 of the drip limit part, the distance that the inner sleeve 9 is displaced relative to the outer sleeve 10 is exactly the length of a vacuum hole.

[0043] In a preferred embodiment, sealing rings are provided at the positions where the first positioning guide rod 12-1 and the second positioning guide rod 12-2 contact the inner sleeve 9 head, and the sealing rings are used to seal the first positioning guide rod 12-1 and the second positioning guide rod 12-2 passing through the inner sleeve 9 head to prevent water / gas leakage due to gaps.

[0044] In a preferred embodiment, the inner sleeve 9, the outer sleeve 10 and the infusion connector 1 are all made of PVC material, which has good corrosion resistance and is easy to weld.

[0045] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A corrosion-resistant solution dripping and vacuum filtration device for chemical production, characterized in that: include: An outer sleeve, wherein one end of the outer sleeve is open and the other end is provided with a sealing head, the open end of the outer sleeve is provided with an internal thread adjustment nut, and the tube wall of the outer sleeve is provided with a plurality of first vacuum holes on one side along the axial direction and a plurality of first dripping vacuum holes on the other side; An inner sleeve, wherein the inner sleeve is sleeved inside the outer sleeve and has a sealing head at one end. A plurality of second vacuum holes are arranged on one side of the inner sleeve wall along the axial direction, and a plurality of second dripping vacuum holes are arranged on the other side. The second vacuum holes and the first vacuum holes, as well as the first dripping vacuum holes and the second dripping vacuum holes, are arranged correspondingly. An infusion connector is arranged at the open end of the outer sleeve and connected to the inner sleeve. The infusion connector is provided with an external thread and cooperates with the internal thread adjustment nut on the outer sleeve.

2. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 1, characterized in that: The external thread infusion connector is also provided with an adjustment slot.

3. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 1, characterized in that: A return spring is also provided at the joint between the infusion connector and the outer sleeve.

4. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 1, characterized in that: A sealing gasket is also provided at the joint between the infusion connector and the outer sleeve.

5. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 1, characterized in that: The outer sleeve is provided with a sealing head on one side, and a limiting device is arranged inside.

6. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 5, characterized in that: The limiting device comprises a first positioning guide rod, a second positioning guide rod, a first limiting rod and a second limiting rod.

7. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 6, characterized in that: The first positioning guide rod is arranged in parallel with the second positioning guide rod, one end of the first positioning guide rod and the second positioning guide rod are connected to the inner side of the outer sleeve head, and the other end passes through the inner sleeve head; the first limiting rod is vertically arranged at one end of the first positioning guide rod and the second positioning guide rod passing through the inner sleeve head, and the second limiting rod is vertically arranged in the middle of the first positioning guide rod and the second positioning guide rod.

8. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 7, characterized in that: The distance between the first positioning guide rod and the second positioning guide rod is consistent with the sum of the length of the vacuum hole and the thickness of the inner sleeve head.

9. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 1, characterized in that: The first positioning guide rod and the second positioning guide rod are provided with sealing rings at the positions where they pass through the inner sleeve seal head.

10. The corrosion-resistant solution dropping and vacuum filtration device for chemical production according to claim 1, characterized in that: The inner sleeve, outer sleeve and infusion connector are all made of PVC material.

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