Solid wax discharging and separating device

Abstract

The utility model discloses a solid wax discharging and separating device which comprises a wax gas ion separating device and a wax water ion separating device, the wax gas ion separation device comprises a hexane refining system, a wax collecting tank, a heater, a cooling system and a hexane recovery system; the hexane refining system is connected with one end of the heater; the other end of the heater is connected with one end of the wax collecting tank; the top of the wax collecting tank is connected with one end of the cooling system; the other end of the cooling system is connected with the hexane recovery system; the wax water ionizing device is arranged below the wax collecting tank; the wax water ion device comprises a container for placing wax; the container adopts a cubic structure; the container is of an open structure; the container comprises a bottom surface, a first side surface, a second side surface, a third side surface and a fourth side surface; wherein two adjacent side surfaces are formed by arranging steel wire meshes outside a plurality of steel materials which are arranged at equal intervals, and the device reduces the lowest loss of wax recovery, saves energy and reduces consumption.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the separation and recovery product field relates to a solid wax discharge separation device. BACKGROUND

[0002] Polyethylene (Polyethylene) is one of the five synthetic resins, is the largest capacity, the most imported varieties in our country synthetic resin. At present, our country is the largest polyethylene importer and the second largest consumer in the world. Polyethylene is mainly divided into linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE) three categories. Polyethylene (PE) is the most widely used variety in general synthetic resin, film is its main processing product, second is sheet and coating, bottle, tank, barrel and other hollow containers and other various injection and blow molding products, pipe and wire, cable insulation and sheath etc. Mainly used in packaging, agriculture and transportation departments. With the development of petrochemical industry, our country polyethylene production develops rapidly, the output accounts for about 1 / 4 of the plastic output.

[0003] One of the by-products produced in the slurry polymerization process is amorphous polyethylene wax dissolved in the dispersant hexane, and the wax is separated in the hexane rectification. One kind of hexane containing high concentration of wax from the bottom of the evaporator is heated by the wax heater and then enters the wax treatment tank. The hexane vapor from the wax treatment tank A or B is condensed in the condenser, further cooled in the re-cooler, and then sent to the hexane collection tank through the separation tank and hexane discharge pump. After the wax feed is switched to the wax treatment tank liquid level B when the wax treatment tank liquid level A accumulates to 50%, part of the water is added to the tank to reduce the temperature of the wax and deactivate the remaining TEAL and make the wax coagulate. When the wax treatment tank liquid level A or B is cooled to the required temperature by water, the material in the container is discharged by gravity into a big bag or container, and the water in the wax treatment tank carries a small part of the wax and is discharged into a ditch during the discharge process. In this process, it will cause waste of wax and serious problems such as blockage of the ditch. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the utility model adopts the technical scheme of a solid wax discharge separation device, which comprises a wax gas separation sub-device and a wax water separation sub-device.

[0005] The wax gas separation sub-device comprises a hexane refining system, a wax collection tank, a heater, a cooling system and a hexane recovery system.

[0006] The hexane refining system is connected with one end of the heater.

[0007] The other end of the heater is connected with one end of the wax collection tank.

[0008] The top of the wax collection tank is connected with one end of the cooling system.

[0009] The cooling system is connected with a hexane recovery system at the other end;

[0010] The wax-water separation sub-device is arranged below the wax collection tank;

[0011] The wax-water separation sub-device comprises a container for placing wax;

[0012] The container adopts a cubic structure;

[0013] The container is of an open structure;

[0014] The container comprises a bottom surface, a first side surface, a second side surface, a third side surface and a fourth side surface;

[0015] The first side surface, the second side surface, the third side surface and the fourth side surface are arranged on the bottom surface;

[0016] The first side surface, the second side surface, the third side surface and the fourth side surface are sequentially and fixedly connected;

[0017] Two adjacent side surfaces are provided with a mesh structure through a fixed column.

[0018] Further, the mesh structure adopts a 20-mesh screen.

[0019] Further, the wax collection tank comprises a wax collection tank A and a wax collection tank B, and the wax collection tank A and the wax collection tank B are provided with on-off valves.

[0020] Further, a water feeding pipeline is arranged on the top of the wax collection tank.

[0021] Further, N wax discharging pipelines are arranged on the bottom of the wax collection tank.

[0022] Further, the other two adjacent side surfaces are made of steel plates, galvanized plates or iron plates.

[0023] The solid wax discharging and separating device has the following advantages:

[0024] The lowest loss of wax recovery is reduced, and energy consumption is saved.

[0025] The blockage of a ditch is avoided, and the production and operation of a refining unit are stable.

[0026] The labor force in the wax discharging process is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0028] Figure 1 is a solid wax discharge separation device structure diagram;

[0029] Figure 2 is a wax water separation sub-device structure;

[0030] The drawings show that: 1, wax water separation sub-device, 2, hexane evaporator, 3, hexane separator, 4, heater, 5, wax collection tank A, 6, wax collection tank B, 7, cooler A, 8, cooler B, 9, re-cooler, 10, hexane separation tank, 11, hexane recovery tank. DETAILED DESCRIPTION

[0031] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] Figure 1 is a solid wax discharge separation device structure diagram;

[0034] A solid wax discharge separation device, comprising a wax gas separation sub-device and a wax water separation sub-device 1;

[0035] The wax gas separation sub-device comprises a hexane refining system, a wax collection tank, a heater 4, a cooling system and a hexane recovery system.

[0036] The hexane refining system is used for evaporation of hexane light components and recovery of heavy components.

[0037] The hexane refining system comprises a hexane evaporator 2 and a hexane separator 3; the evaporator and the separator are connected.

[0038] A control valve is arranged at the bottom of the evaporator;

[0039] A hexane delivery pipeline containing high concentration wax is arranged, one end of which is communicated with the bottom evaporator of the hexane refining system, and the other end of which is communicated with the wax collecting tank,

[0040] A heater 4 is arranged between the bottom of the evaporator and the wax collecting tank, and the hexane containing high concentration wax is heated and then enters the wax collecting tank, and a cooling system is arranged at the top of the wax collecting tank;

[0041] The heater 4 is used for heating the pipeline from the hexane evaporator 2 to the wax collecting tank, and the working temperature after heating is about 100℃.

[0042] The cooling system includes a cooler and a re-cooler 9;

[0043] One end of the cooler is connected with the wax collecting tank, and the other end of the cooler is connected with one end of the re-cooler 9;

[0044] The wax collecting tank is communicated with the bottom of the hexane evaporator 2 through a pipeline, and is used for collecting the hexane and wax delivered from the hexane evaporator 2.

[0045] A water feeding pipeline is arranged at the top of the wax collecting tank, and is used for cooling the wax collecting tank.

[0046] The cooler is arranged at the top of the wax collecting tank, and the two are connected through a pipeline, and the cooler includes a cooler A 7 and a cooler B 8.

[0047] The re-cooler 9 is communicated with the cooler, and the hexane gas from the cooler is cooled again.

[0048] The hexane recovery system includes a hexane separation tank 10 and a hexane recovery tank 11.

[0049] One end of the hexane separation tank 10 is connected with one end of the re-cooler 9, and the other end of the hexane separation tank 10 is connected with the hexane recovery tank 11.

[0050] The hexane separation tank 10 is communicated with the re-cooler 9 through a pipeline, and after recovering the hexane, the hexane is delivered into the hexane tank through a delivery pipeline for storage.

[0051] The wax collecting tank includes a wax treatment tank A or a wax treatment tank B.

[0052] The top of the wax treatment tank A is connected with the cooler A 7.

[0053] The top of the wax treatment tank B is connected with the cooler B 8.

[0054] The cooler A 7 and the cooler B 8 are also connected with the re-cooler 9.

[0055] The hexane vapor from the wax treatment tank A or the wax treatment tank B is condensed in a condenser, further cooled in a re-condenser 9, and then pumped to a hexane collection tank through a separation tank and a hexane discharge pump. After the wax collection tank A 5 liquid level accumulates to 50%, the wax feed is switched to the wax collection tank B 6 liquid level, while part of water is added to the tank to reduce the temperature of the wax and deactivate the remaining TEAL (triethylaluminum, which may react with the wax at high temperature during the wax tank collection process, and the triethylaluminum is deactivated by water, so that the addition of water will deactivate the TEAL and prevent the reaction with the wax) and coagulate the wax. When the wax collection tank A 5 liquid level or the wax collection tank B 6 is cooled to the required temperature by water, the material in the wax treatment tank is discharged by gravity to a big bag or container.

[0056] A wax discharge pipeline A is arranged below the wax collection tank A 5, one end of which communicates with the bottom of the wax collection tank A 5, and the other end of which is discharged to a trench through a valve,

[0057] A wax discharge pipeline B is arranged below the wax collection tank B 6, one end of which communicates with the bottom of the wax collection tank B 6, and the other end of which is discharged to the trench after being connected with the wax discharge pipeline A through a valve. The wax discharge and water discharge pipelines have 10 branch pipelines, and the branch pipeline openings are 0.8 meters away from the ground.

[0058] Figure 2 It is a structure of a wax and water separation sub-device;

[0059] The wax and water separation sub-device 1 is arranged below the wax gas separation sub-device;

[0060] The wax and water separation sub-device 1 is used for separating water and wax during water discharge;

[0061] The wax and water separation sub-device 1 comprises a container for placing wax;

[0062] The container adopts a cubic structure, and the cubic structure adopts a square or a cuboid;

[0063] The container is of an open structure;

[0064] The container comprises a bottom surface, a first side surface, a second side surface, a third side surface and a fourth side surface;

[0065] The first side surface, the second side surface, the third side surface and the fourth side surface are arranged on the bottom surface;

[0066] The first side surface, the second side surface, the third side surface and the fourth side surface are sequentially connected in a head-to-tail manner;

[0067] The bottom surface, the first side surface and the second side surface adjacent to the first side surface adopt a steel plate or a galvanized plate or an iron plate;

[0068] The fourth side adjacent to the third side is provided with a mesh structure by a plurality of equidistantly arranged fixing columns, the fixing columns are made of steel, iron columns or galvanized columns, and the outside is provided with a steel wire mesh; the mesh structure is made of a steel wire mesh, an iron wire mesh or a galvanized mesh, and the mesh structure is a 20-mesh screen;

[0069] A movable part, such as a wheel, is added to the bottom of the container to make the device flexible and movable.

[0070] After the wax is drained into the wax water separation sub-device 1, the water is drained to a ditch through the steel wire mesh, and the remaining wax is filtered into the device by the wire mesh.

[0071] In an embodiment of the utility model, the wax water separation sub-device 1 is arranged between a branch pipeline pipe orifice and the ground, can be flexibly moved for discharging of different pipe orifices, the wax water separation sub-device 1 is 1.5 meters long, 1.2 meters wide and 0.6 meters high, the steel material is used to fix the steel wire mesh, the steel material interval is 13 centimeters, is used for fixing the steel wire mesh, since the drainage temperature is between 40 DEG C-70 DEG C, the metal wire mesh is used for separation, the water is drained to the ground through the wire mesh, and the wax is left in the separation device.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0073] The utility model discloses a solid wax discharging separation device, including wax gas separation sub-device and wax water separation sub-device, wax gas separation sub-device includes hexane refining system, wax collection jar, heater, cooling system and hexane recovery system, hexane refining system is connected with one end of heater, the other end of heater is connected with one end of wax collection jar, the top of wax collection jar is connected with one end of cooling system, the other end of cooling system is connected with hexane recovery system, and wax water separation sub-device is arranged below wax collection jar, wax water separation sub-device includes the container for placing wax, the container adopts cubic structure, and the container is the open structure, and the container includes bottom, first side, second side, third side and fourth side, wherein the adjacent two sides are provided with steel wire mesh outside through a plurality of equidistantly arranged steel materials, and the device reduces the minimum loss of wax recovery, and energy saving and cost reduction.

Claims

1. A solid wax discharge separation device, characterized in that: Including a wax gas separator and a wax water ionization device; The wax gas separator includes a hexane refining system, a wax collection tank, a heater, a cooling system, and a hexane recovery system; The hexane refining system is connected to one end of the heater; The other end of the heater is connected to one end of the wax collection tank; The top of the wax collection tank is connected to one end of the cooling system; The other end of the cooling system is connected to the hexane recovery system; The wax water ionization device is located below the wax collection tank; The wax water ionization device includes a container for holding wax; The container has a cubic structure; The container has an open structure; The container includes a bottom surface, a first side surface, a second side surface, a third side surface, and a fourth side surface; A first side surface, a second side surface, a third side surface, and a fourth side surface are provided on the bottom surface; The first side, the second side, the third side, and the fourth side are fixedly connected end to end in sequence; The two adjacent sides are connected by a mesh structure through fixed columns.

2. The solid wax emission separation device according to claim 1, characterized in that: The mesh structure uses a 20-mesh sieve.

3. The solid wax emission separation device according to claim 1, characterized in that: The wax collection tank includes wax collection tank A and wax collection tank B, and wax collection tank A and wax collection tank B are equipped with on / off valves.

4. The solid wax emission separation device according to claim 1, characterized in that: A water supply line is installed on the top of the wax collection tank.

5. A solid wax emission separation device according to claim 1, characterized in that: N wax discharge pipelines are installed at the bottom of the wax collection tank.

6. The solid wax emission separation device according to claim 1, characterized in that: It also includes two other adjacent sides made of steel plates, galvanized plates, or iron plates.

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