CN211963342U

CN211963342U - Filtration equipment of p-nitrothiosemicarbazide

Info

Publication number: CN211963342U
Application number: CN202020436737.9U
Authority: CN
Inventors: 黄国祥
Original assignee: Hangzhou Brown Bio-Pharm Co ltd
Current assignee: Hangzhou Brown Bio-Pharm Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-20
Anticipated expiration: 2030-03-30

Abstract

The utility model relates to a filtering device, in particular to a filtering device of paranitrothiosemicarbazide, which comprises a filter main body, an upper end socket and a lower end socket, wherein the upper end surface and the lower end surface of the filter main body are respectively provided with an upper fixing plate and a lower fixing plate, a plurality of infusion tubes are fixedly connected between the upper fixing plate and the lower fixing plate, and a heat medium cavity is formed in the inner space of the filter main body except the infusion tubes; the top of the upper end enclosure is provided with a liquid inlet pipe, and a filter plate is arranged at the joint of the upper end enclosure and the upper fixing plate; a flow-slowing plate is arranged at the joint of the lower fixing plate and the lower end enclosure, and a liquid outlet pipe is also arranged at the bottom of the lower end enclosure. The utility model overcomes filter equipment among the prior art can not effectively avoid the defect of solution crystallization, has and to carry out active heating heat preservation to filtering solution and handle, prevents that solution from cooling the crystallization in filtering process to can also wash the filter residue after filtering, improve the result yield, still have the advantage that filtration efficiency is high simultaneously.

Description

Filtration equipment of p-nitrothiosemicarbazide

Technical Field

The utility model relates to a filter equipment especially relates to a filtration equipment of p-nitrobenzthiourea.

Background

In the process of synthesizing the p-nitrobenzenethiourea, in order to remove harmful mechanical impurities in the solution, filtration equipment is adopted to filter and remove the impurities in the nitrobenzenethiourea solution so as to obtain a product meeting the purity requirement. However, the filtration devices of the prior art generally do not have a heat-preserving effect, resulting in a temperature drop of the solution after filtration leading to crystallization. The following two consequences are thereby brought about: 1. the crystallized compound crystals are also filtered at the same time, resulting in a substantial reduction in the amount of product in the final solution, leading to a reduction in yield; 2. if the product is crystallized in a large amount in the pipeline, the blockage of the filtering equipment can be caused, thereby seriously affecting the filtering efficiency.

For example, a closed filter with application number of CN201621279478.3, which mainly comprises a bottom plate, a cylinder, a filter plate, filter cloth, a filter cloth pressing plate, an elliptical seal head and a quick-opening manhole; the elliptic sealing head is provided with a liquid inlet pipe, a compressed air inlet pipe, a hot water inlet pipe and an observation sight glass; the cylinder is provided with a quick-opening manhole so as to be convenient for quickly removing filter residues and cleaning filter cloth during operation; the bottom of the cylinder body is provided with a liquid outlet pipe so as to discharge filtrate in time; the filter cloth is tiled on the filter plate, the periphery of the filter cloth is pressed by a filter cloth pressing plate and then is screwed by a bolt and a nut, and the filter cloth is pressed tightly; the shell of the closed filter is insulated by adopting an insulation material to prevent the solution from crystallizing and blocking the filter cloth in the filtering process, but the filter can only insulate heat and cannot actively heat, so that the defect that the solution can be crystallized during filtering still exists.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the defect that filter equipment among the prior art can not effectively avoid the crystallization of solution, provide one kind and can carry out active heating to solution, guarantee the filtration equipment of a p-nitrobenzene thiourea that can not the crystallization in the filter process.

For realizing the purpose of the utility model, the utility model discloses a following technical scheme realizes:

a filter device for paranitrothiosemicarbazide comprises a filter main body, an upper end enclosure and a lower end enclosure, wherein an upper fixing plate and a lower fixing plate are respectively arranged on the upper end surface and the lower end surface of the filter main body, a plurality of infusion tubes are fixedly connected between the upper fixing plate and the lower fixing plate, and a heat medium cavity is formed in the inner space of the filter main body except the infusion tubes; the top of the upper end enclosure is provided with a liquid inlet pipe, and a filter plate is arranged at the joint of the upper end enclosure and the upper fixing plate; a flow buffering plate is arranged at the joint of the lower fixing plate and the lower end enclosure, and a liquid outlet pipe is further arranged at the bottom of the lower end enclosure.

The utility model discloses a be provided with a hot medium chamber in the filter main part, its inside can the higher hot medium of storage temperature to can heat whole filtration equipment, make the filtrate can not because of the crystallization that receives cold in filtering process, lead to the productivity decline of result, and block up filtering duct scheduling problem.

Furthermore, the utility model discloses after filtering, during the filtrating can flow in each transfer line, because the pipe diameter of transfer line is less, consequently its heating efficiency is high, more is difficult to the crystallization.

Preferably, a cleaning pipe is further arranged in the heat medium cavity, a cleaning pipe inlet and a cleaning pipe outlet are further formed in the left side and the right side of the filter body, the cleaning pipe inlet and the cleaning pipe outlet are matched with the cleaning pipe, and a spraying pipe is further arranged at the upper end socket.

Solution need wash the filter residue after filtering to guarantee extracting completely of result, the utility model discloses set up the scavenge pipe in the hot medium intracavity portion still, before the washing liquid washs the filter residue, can heat up the washing liquid in advance, thereby can effectively wash the filter residue, when using, only need let in the washing liquid in to the scavenge pipe entry, can use with a scavenge pipe export and a hose of shower reconnection simultaneously.

Preferably, the spray pipe is arranged on the side of the liquid inlet pipe.

Preferably, a plurality of baffles are arranged in the filter body.

The baffle plates can effectively prolong the flow path of the heat medium and increase the heat exchange efficiency.

Preferably, the lower sealing head is further provided with a decompression pipe, the decompression pipe is in an inverted Z shape, and the horizontal position of the end part of the decompression pipe, which is positioned on the outer side of the lower sealing head, is higher than the horizontal position of the end part of the decompression pipe, which is positioned on the inner side of the lower sealing head.

The pressure reducing pipe is arranged to carry out suction filtration on the whole filtering equipment, so that the filtering speed is improved.

Preferably, the middle parts of the upper fixing plate and the lower fixing plate protrude outwards, and the outer sides of the outer edges of the upper fixing plate and the lower fixing plate are provided with a sealing gasket correspondingly.

Preferably, the contact parts of the infusion tube and the upper fixing plate and the lower fixing plate are respectively provided with a sealing cap with a cross section being a conical surface.

Preferably, the bottom of the filter body is also provided with a heat medium input pipe, and the top of the filter body is also provided with a heat medium output pipe.

Therefore, the utility model discloses following beneficial effect has:

(1) the active heating and heat preservation treatment can be carried out on the filtered solution, so that the solution is prevented from being cooled and crystallized in the filtering process;

(2) after the filtration is finished, the filter residue can be washed, so that the product yield is improved;

(3) the filtering efficiency is high, and the filtering speed is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

Fig. 3 is an enlarged view of the point b in fig. 1 according to the present invention.

Fig. 4 is an enlarged view of c in fig. 1 according to the present invention.

Wherein: the filter comprises a filter body 1, an upper seal head 2, a lower seal head 3, a fixing plate 4, a lower fixing plate 5, a filter plate 6, a liquid conveying pipe 7, a heat medium cavity 8, a slow flow plate 9, a liquid outlet pipe 10, a liquid inlet pipe 11, a cleaning pipe 12, a cleaning pipe inlet 13, a cleaning pipe outlet 14, a spray pipe 15, a baffle plate 16, a decompression pipe 17, a sealing washer 18, a sealing cap 19, a heat medium input pipe 20 and a heat medium output pipe 21.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.

Example 1

As shown in figure 1, the filtration equipment for paranitrothiosemicarbazide comprises a filter main body 1, an upper end enclosure 2 and a lower end enclosure 3.

Both ends face is provided with upper fixed plate 4 and bottom plate 5 respectively about filter main part 1, a plurality of transfer lines 7 of fixedly connected with between upper fixed plate 4 and the

bottom plate

5, 1 inner space of filter main part removes transfer line 7 appearance formation hot medium chamber 8, 1 bottom of filter main part still is provided with a hot medium input tube 20, the top still is provided with a hot medium output tube 21, medium input tube 20, mutual UNICOM sets up between hot medium chamber 8 and the hot medium output tube 21 three, the heating of accessible external firing equipment to hot medium between the three, thereby make hot medium circulate in its inside.

The inside scavenge pipe 12 that still is provided with of hot medium chamber 8, it is located the filter main part 1 left and right sides and still is provided with scavenge pipe entry 13 and scavenge pipe export 14, with scavenge pipe 12 looks adaptation, upper cover 2 department still is provided with a shower 15, only need let in the washing liquid in the scavenge pipe entry 13 during the use, the washing liquid alright get the heating when flowing in scavenge pipe 12, flow out from scavenge pipe export 14 at last, then use the pipeline to be connected the back with scavenge pipe export 14 with shower 15, can spray.

A plurality of baffle plates 16 for extending the flow path of the heat medium are further provided inside the filter main body 1, so that the heat exchange efficiency can be improved, the infusion tube 7 is always kept at a high temperature, and crystallization is avoided.

The top of the upper end enclosure 2 is provided with a liquid inlet pipe 11, the liquid inlet pipe 11 is connected with a spray pipe 15, and a filter plate 6 is arranged at the joint of the upper end enclosure 2 and the upper fixing plate 4.

The joint of the lower fixing plate 5 and the lower end enclosure 3 is also provided with a buffer plate 9, and the bottom of the lower end enclosure 3 is also provided with a liquid outlet pipe 10.

As shown in fig. 2 to 3, the middle portions of the upper fixing plate 4 and the lower fixing plate 5 protrude outwards, and correspondingly, a sealing washer 18 is further disposed at the outer side of the outer edges of the upper fixing plate 4 and the lower fixing plate 5, so that the upper end and the lower end of the sealing washer 18 at the upper fixing plate 4 are respectively tightly attached to the upper sealing head 2 and the upper fixing plate 4. And the upper end and the lower end of the sealing washer 18 at the lower fixing plate 5 are respectively tightly attached to the lower end enclosure 3 and the lower fixing plate 5.

As shown in fig. 4, the contact parts of the infusion tube 7 with the upper fixing plate 4 and the lower fixing plate 5 are respectively provided with a sealing cap 19 with a cross section being a conical surface.

The utility model discloses application method as follows: firstly, a heat medium is injected into a heat medium input pipe 20, the heat medium cavity 8 is sequentially filled with the heat medium from bottom to top and flows out of a heat medium output pipe 21, the heat medium is continuously circulated through external circulation equipment, when the temperature of the whole equipment reaches a set temperature, a solution to be filtered is poured into a liquid inlet pipe 11, filtrate flows out of a liquid outlet pipe 10 of a lower end enclosure 3 along a liquid conveying pipe 7, filter residues are remained on the surface of a filter plate 6, then cleaning liquid is introduced into an inlet 13 of a cleaning pipe, the temperature of the cleaning liquid reaches the set temperature after flowing along a cleaning pipe 12 and flows out of an outlet 14 of the cleaning pipe, at the moment, another connecting pipe is taken, the outlet 14 of the cleaning pipe is connected with a spray pipe 15, and the heated cleaning liquid can wash the filter.

Claims

1. A filter device for paranitrothiosemicarbazide comprises a filter main body (1), an upper seal head (2) and a lower seal head (3), it is characterized in that the upper end surface and the lower end surface of the filter main body (1) are respectively provided with an upper fixing plate (4) and a lower fixing plate (5), a plurality of transfusion tubes (7) are fixedly connected between the upper fixing plate (4) and the lower fixing plate (5), the inner space of the filter main body (1) except the infusion tube (7) forms a heat medium cavity (8), a liquid inlet pipe (11) is arranged at the top of the upper seal head (2), a filter plate (6) is arranged at the joint of the upper seal head (2) and the upper fixing plate (4), the joint of the lower fixing plate (5) and the lower sealing head (3) is also provided with a buffer plate (9), and the bottom of the lower sealing head (3) is also provided with a liquid outlet pipe (10).

2. The p-nitrothiosemicarbazide filtering device according to claim 1, characterized in that a cleaning pipe (12) is further arranged inside the thermal medium cavity (8), cleaning pipe inlets (13) and cleaning pipe outlets (14) are further arranged on the left side and the right side of the filter body (1) and are matched with the cleaning pipe (12), and a spraying pipe (15) is further arranged at the upper end enclosure (2).

3. The filtration equipment for p-nitrothiosemicarbazide according to claim 2, characterized in that the shower pipe (15) is arranged on the side of the liquid inlet pipe (11).

4. The filtration apparatus for p-nitrothiosemicarbazide according to claim 1, 2 or 3, characterized in that a plurality of baffles (16) are arranged inside the filter body (1).

5. The filter equipment for the paranitrothiosemicarbazide according to claim 1, characterized in that the lower seal head (3) is further provided with a decompression pipe (17), the decompression pipe (17) is in an inverted Z shape, and the horizontal position of the end part of the decompression pipe, which is positioned on the outer side of the lower seal head (3), is higher than the horizontal position of the end part of the decompression pipe, which is positioned on the inner side of the lower seal head (3).

6. The filter equipment for the p-nitrothiosemicarbazide according to claim 1, characterized in that the middle parts of the upper fixing plate (4) and the lower fixing plate (5) are protruded outwards, and a sealing gasket (18) is arranged at the outer side of the outer edge of the upper fixing plate (4) and the outer side of the outer edge of the lower fixing plate (5) correspondingly.

7. The filtration equipment for the p-nitrothiosemicarbazide according to claim 1, characterized in that the contact parts of the infusion tube (7) and the upper fixing plate (4) and the lower fixing plate (5) are respectively provided with a sealing cap (19) with a conical cross section.

8. The apparatus for filtering p-nitrothiosemicarbazide according to claim 1, wherein a heat medium input pipe (20) is further provided at the bottom of the filter body (1), and a heat medium output pipe (21) is further provided at the top of the filter body (1).