Durable infiltration equipment

Abstract

The utility model discloses durable infiltration equipment. The durable infiltration equipment comprises an infiltration tank, a demisting tank, a filtering tank and a vacuum pump which are sequentially arranged from upstream to downstream, a liquid discharge pipe, an air inlet pipe, a cooling mechanism, rotational flow blades and an air outlet pipe are sequentially arranged on the demisting tank from bottom to top; the filtering tank is provided with an inlet and an outlet, the inlet is close to the bottom of the filtering tank, the outlet is located at the top of the filtering tank, and a plurality of porous ceramic filtering layers are arranged in the filtering tank; according to the utility model, the demisting tank and the filtering tank are applied to the upstream of the vacuum pump, and atomized small liquid drops of the infiltration liquid enter the demisting tank and then undergo cooling and rotational flow centrifugal separation processes, so that most of the infiltration liquid is intercepted in the demisting tank; a small part of small infiltration liquid drops penetrating through the demisting tank are filtered and intercepted by the porous ceramic filtering layer in the filtering tank, so that the small infiltration liquid drops are prevented from entering and damaging the vacuum pump; the filter tank is reliable in work, the workload of the porous ceramic filter layer in the filter tank can be remarkably reduced, and the maintenance and replacement period is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of impregnation equipment for casting, in particular to a durable impregnation equipment. Background Art

[0002] Impregnation equipment is required for the processing of metal castings. After impregnation treatment, the wear resistance, corrosion resistance and oxidation resistance of the workpiece can be greatly improved. Combined with actual production and processing experience, it is known that the impregnation tank needs to be evacuated during operation. When evacuating, the impregnation liquid surface in the impregnation tank will produce impregnation liquid atomization. If this part of the atomized impregnation liquid is sucked into the vacuum pump, it will have an adverse effect on the normal operation of the vacuum pump. In severe cases, it may even damage the vacuum pump. Therefore, a durable impregnation equipment is needed that can effectively prevent the atomized impregnation liquid from entering the vacuum pump. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the utility model is to provide a durable infiltration device, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A durable impregnation equipment, comprising an impregnation tank, a demister, a filter tank and a vacuum pump arranged in sequence from upstream to downstream; a liquid discharge pipe, an air inlet pipe, a cooling mechanism, a swirl blade and an air outlet pipe are arranged in sequence from bottom to top on the demister, the liquid discharge pipe is provided with a valve, and the outlet of the air inlet pipe extends into the demister; the cooling mechanism comprises at least one upper layer and at least one lower layer, the upper layer comprises a plurality of V-shaped cooling baffles uniformly distributed along the left-right direction, and there are gaps between adjacent cooling baffles and between the cooling baffles and the inner wall of the demister, the lower layer comprises a plurality of triangular cooling guide plates uniformly distributed along the left-right direction, and there are gaps between adjacent cooling guide plates and between the cooling guide plates and the inner wall of the demister, the cooling guide plate is located directly below the gap between two adjacent cooling baffles above and the cooling guide plate is connected to the two adjacent cooling baffles above through a connecting pipe, one end of the cooling baffle is connected to a cooling circulating water inlet pipe, and one end of the cooling guide plate is connected to a cooling circulating water outlet pipe;

[0006] The swirl blade is fixed on a rotating shaft driven by a motor, and the rotating shaft is coaxially arranged with the demister tank. An inner liner is also arranged in the inner cavity of the demister tank around the swirl blade, and there is a gap between the inner liner and the inner wall of the demister tank, and the inner liner has a plurality of horizontal strip holes;

[0007] The filter tank is provided with an inlet and an outlet, wherein the inlet is close to the bottom of the filter tank and the outlet is located at the top of the filter tank. A plurality of porous ceramic filter layers are also arranged in the filter tank.

[0008] Furthermore, the outlet of the air intake pipe is coaxially arranged with the defogger tank and a trumpet diffuser is provided at the outlet of the air intake pipe.

[0009] Furthermore, the outlet of the air inlet pipe is arranged vertically downward.

[0010] Furthermore, the cooling mechanism includes two upper layers and two lower layers, and the upper layers and the lower layers are alternately arranged.

[0011] Furthermore, the middle part of the demister tank and the middle part of the liner both have an expanded section that is thicker at the top and thinner at the bottom.

[0012] The utility model has the following beneficial technical effects:

[0013] In the utility model, a demister and a filter tank are applied upstream of a vacuum pump. After atomized small droplets of impregnated liquid enter the demister, they will experience a process of cooling and cyclonic centrifugal separation, so that most of the impregnated liquid is retained in the demister, and a small part of the small droplets of impregnated liquid that pass through the demister are filtered and retained by the porous ceramic filter layer in the filter tank, thereby preventing them from entering and damaging the vacuum pump. The utility model is reliable in operation, can significantly reduce the workload of the porous ceramic filter layer in the filter tank, and prolong its maintenance and replacement cycle, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the demister tank in the embodiment of the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0018] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] like Figure 1-3 As shown, a durable impregnation device described in this embodiment includes an impregnation tank 1, a demister tank 2, a filter tank 3 and a vacuum pump 4 arranged in sequence from upstream to downstream; a liquid discharge pipe 5, an air inlet pipe 6, a cooling mechanism 7, a swirl blade 8 and an air outlet pipe 9 are arranged in sequence from bottom to top on the demister tank 2, the liquid discharge pipe 5 is provided with a valve, and the outlet of the air inlet pipe 6 extends into the demister tank 2. Specifically, the outlet of the air inlet pipe 6 is coaxially arranged with the demister tank 2 and a trumpet diffuser is provided at the outlet of the air inlet pipe 6, and the outlet of the air inlet pipe 6 is arranged vertically downward;

[0020] The cooling mechanism 7 includes at least one upper layer and at least one lower layer. The preferred cooling mechanism includes two upper layers and two lower layers, and the upper layers and the lower layers are alternately arranged. The upper layer includes a plurality of V-shaped cooling baffles 10 uniformly distributed along the left-right direction. The cooling baffles 10 are hollow. There are gaps between adjacent cooling baffles 10 and between the cooling baffles 10 and the inner wall of the demister tank 2 to facilitate the flow of the impregnation liquid. The lower layer includes a plurality of triangular cooling guide plates 11 uniformly distributed along the left-right direction. The cooling guide plates 11 are hollow. There are gaps between adjacent cooling guide plates 11 and between the cooling guide plates 11 and the inner wall of the demister tank 2. The cooling guide plates 11 are located directly below the gap between the two adjacent cooling baffles 10 above and the cooling guide plates 11 are connected to the two adjacent cooling baffles 10 above through a connecting pipe 12. One end of the cooling baffle 10 is connected to a cooling circulating water inlet pipe 13, and one end of the cooling guide plate 11 is connected to a cooling circulating water outlet pipe 14.

[0021] The swirl blade 8 is fixed on the rotating shaft 15 driven by the motor, and the rotating shaft 15 is coaxially arranged with the defogger 2. A liner 16 is also arranged in the inner cavity of the defogger 2 around the swirl blade 8. There is a gap between the liner 16 and the inner wall of the defogger 2, and there are multiple horizontal strip holes 17 on the liner 16. The horizontal strip holes 17 are for the impregnated liquid to pass through, so that the impregnated liquid can flow downward better between the liner 16 and the defogger 2 without being affected by the airflow; the middle part of the defogger 2 and the middle part of the liner both have an expanded section that is thick at the top and thin at the bottom, which makes the middle part of the defogger 2 and the middle part of the liner 16 have a slope, which is more conducive to the impregnated liquid passing through the horizontal strip holes 17 and entering the space between the liner 16 and the inner wall of the defogger 2

[0022] The filter tank 3 has an inlet 18 and an outlet 19, the inlet 18 is close to the bottom of the filter tank 3, and the outlet 19 is located at the top of the filter tank 3. A plurality of porous ceramic filter layers 20 are also arranged in the filter tank 3. The porous ceramic material is a porous ceramic material with an open pore size and a high open porosity, which is made of high-quality raw materials such as corundum sand, silicon carbide, and cordierite as the main materials and is prepared through molding and special high-temperature sintering processes. It has good biological inertness, controllable pore structure and high open porosity, and is suitable for precision filtration and separation of various media.

[0023] The working principle of this embodiment is:

[0024] When the impregnation tank 1 is working, a vacuum is drawn, and partial atomization occurs on the surface of the impregnation liquid. The atomized small droplets of the impregnation liquid enter the demister tank 2 through the air inlet pipe 6, are cooled by the cooling mechanism 7 and centrifuged out by the swirl blades 8, and the small droplets of the impregnation liquid flow downward in the demister tank 2 and can be discharged through the drain pipe 5. The small droplets of the impregnation liquid passing through the demister tank 2 enter the filter tank 3 and are then filtered and retained by the porous ceramic filter layer 20 in the filter tank 3, thereby preventing them from entering and damaging the vacuum pump 4. This embodiment works reliably and can also significantly reduce the workload of the porous ceramic filter layer 20 in the filter tank 3, prolonging its maintenance and replacement cycle, and has strong practicality.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. A durable impregnation device, characterized in that: The invention comprises an impregnation tank, a demister tank, a filter tank and a vacuum pump which are arranged in sequence from upstream to downstream; a liquid discharge pipe, an air inlet pipe, a cooling mechanism, a swirl blade and an air outlet pipe are arranged in sequence from bottom to top on the demister tank, the liquid discharge pipe is provided with a valve, and the outlet of the air inlet pipe extends into the demister tank; the cooling mechanism comprises at least one upper layer and at least one lower layer, the upper layer comprises a plurality of V-shaped cooling baffles uniformly distributed along the left-right direction, and there are gaps between adjacent cooling baffles and between the cooling baffles and the inner wall of the demister tank, the lower layer comprises a plurality of triangular cooling guide plates uniformly distributed along the left-right direction, and there are gaps between adjacent cooling guide plates and between the cooling guide plates and the inner wall of the demister tank, the cooling guide plate is located directly below the gap between the two adjacent cooling baffles above, and the cooling guide plate is connected to the two adjacent cooling baffles above through a connecting pipe, one end of the cooling baffle is connected to a cooling circulating water inlet pipe, and one end of the cooling guide plate is connected to a cooling circulating water outlet pipe; The swirl blade is fixed on a rotating shaft driven by a motor, and the rotating shaft is coaxially arranged with the demister tank. An inner liner is also arranged in the inner cavity of the demister tank around the swirl blade, and there is a gap between the inner liner and the inner wall of the demister tank, and the inner liner has a plurality of horizontal strip holes; The filter tank is provided with an inlet and an outlet, wherein the inlet is close to the bottom of the filter tank and the outlet is located at the top of the filter tank. A plurality of porous ceramic filter layers are also arranged in the filter tank.

2. A durable impregnation device according to claim 1, characterized in that: The outlet of the air intake pipe is coaxially arranged with the defogger tank and a trumpet diffuser is provided at the outlet of the air intake pipe.

3. A durable impregnation device according to claim 2, characterized in that: The outlet of the air inlet pipe is arranged vertically downward.

4. A durable impregnation device according to claim 1, characterized in that: The cooling mechanism comprises two upper layers and two lower layers, and the upper layers and the lower layers are arranged alternately.

5. A durable impregnation device according to any one of claims 1 to 4, characterized in that: The middle part of the demisting tank and the middle part of the liner both have an expanded section which is thick at the top and thin at the bottom.

Images