CN217164865U

CN217164865U - Liquid-cooled roller magnetic separator

Info

Publication number: CN217164865U
Application number: CN202220137360.6U
Authority: CN
Inventors: 王彦玲; 贾春; 赵宽明
Original assignee: Zhonghao Heiyuan Chemical Research Design Institute Co ltd
Current assignee: Zhonghao Heiyuan Chemical Research Design Institute Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-08-12
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a liquid-cooled roller magnetic separator, which comprises a roller magnetic separator and a liquid cooling system, wherein the liquid cooling system is arranged outside the roller magnetic separator; the roller magnetic separator consists of a roller assembly and a shell, wherein the roller assembly is arranged in the shell; the roller assembly comprises a magnet yoke assembly, a central shaft and an outer roller, wherein the magnet yoke assembly is assembled by magnet pieces, the magnet yoke assembly is of a static structure and is arranged on the inner side of the shell, and the outer roller is arranged on the outer side of the central shaft; the liquid cooling system comprises a cooling liquid circulating pump, a filling tank and a cooler; this liquid cooling formula cylinder magnet separator, coolant liquid directly enter into the inside even multiple spot of cylinder and magnet direct contact through the runner, with the magnet cooling, also can cool off the cylinder of magnet separator simultaneously for magnet is in operation under the good operating temperature all the time, improves the life of magnet when guaranteeing the magnetic separation effect, reduction in production cost.

Description

Liquid-cooled roller magnetic separator

Technical Field

The utility model relates to a magnet separator technical field especially relates to a liquid cooling type cylinder magnet separator.

Background

The magnetic separator is suitable for separating and screening substances with magnetic differences. The magnetic separator is generally arranged in a powder production line or a product refining system with high requirement on product purity, and is usually rotary and automatic in cleaning, and magnetic hard slag of collected scrap iron and oxidized scrap iron and the like are continuously unloaded, so that the product purity can be improved, and the grade of the product is improved and refined.

The roller magnetic separator for producing carbon black usually has a structure that magnets in a roller are fixed in position and are stationary, the roller is driven by a driving machine to rotate, materials rotate along with the roller on the surface of the roller, the non-magnetic materials fall down when a certified product is fed, and magnetic impurities are adsorbed on the surface of the roller and are brought into corresponding impurity ports to be removed. Because the operating temperature of a refining system of a carbon black production line is high, generally above 80 ℃, permanent demagnetization can be generated when a magnet works in a high-temperature environment for a long time, and the annual demagnetization rate of some magnets exceeds 30%. The magnetic separation effect is not thorough, the magnetic separator is frequently cleaned and replaced, and the service life is short. For this reason, some magnetic separator manufacturers adopt an air cooling mode to cool the magnet, but the gas heat transfer effect is poor, and the heat conduction effect of the magnet is poor, and the cooling effect is not obvious, so that the service life of the magnet is not obviously improved, and therefore, it is necessary to design a liquid-cooled roller magnetic separator.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem provide a liquid cooling type cylinder magnet separator, the coolant liquid passes through the runner and directly enters into the even multiple spot of inside of drum and magnet direct contact, with the magnet cooling, also can cool off the cylinder simultaneously for magnet is in operation under the good operating temperature all the time, improves the life of magnet when guaranteeing the magnetic separation effect, reduces the replacement cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a liquid cooling type cylinder magnet separator, includes cylinder magnet separator and liquid cooling system, the outside of cylinder magnet separator is provided with liquid cooling system.

As a further aspect of the present invention: the roller magnetic separator consists of a roller assembly and a shell, wherein the roller assembly is arranged in the shell; the roller assembly comprises a magnet yoke assembly, a central shaft and an outer roller, wherein the magnet yoke assembly is of a static structure and is arranged on the inner side of the shell, the outer roller is arranged on the outer side of the central shaft and is rotationally connected with the central shaft, so that the outer roller can rotate around the central shaft to drive materials; the liquid cooling system comprises a cooling liquid circulating pump, a filling tank and a cooler; and a filling tank is arranged at one end of the cooling liquid circulating pump, and a cooler is arranged at one end of the filling tank.

As a further aspect of the present invention: the shaft ends at the two ends of the central shaft are provided with a cooling liquid inlet hole and a cooling liquid outlet hole which are communicated with the interior of the outer roller, and the cooling liquid inlet hole and the cooling liquid outlet hole are both connected with a liquid cooling system; a plurality of overflow holes are formed in the outer wall of the central shaft in the outer roller; the oil outlet end of the cooling liquid circulating pump is connected with the cooling liquid inlet hole through a pipeline, and the oil injection end of the cooler is connected with the cooling liquid outlet hole through a pipeline; the cooling liquid from the filling tank is conveyed through the circulating pump, enters the outer roller from a cooling liquid inlet hole at one end of the central shaft, forcibly cools the magnet of the magnet yoke assembly, and the cooled liquid flows out from a plurality of overflow holes in the outer roller on the central shaft and a cooling liquid outlet hole at the shaft end position of the central shaft, is cooled by the cooler and then returns to the filling tank for recycling.

As a further aspect of the present invention: the cooler adopts an air cooler structure, and the cooling liquid of the cooler adopts one or more of diesel oil and kerosene and the mixed liquid thereof; the air flow is used for self-heating cooling, which is beneficial to reducing the cost.

As a further aspect of the present invention: the oil outlet end of the filling tank is connected with the oil injection end of the cooling liquid circulating pump through a pipeline, and the oil outlet end of the cooler is connected with the oil injection end of the filling tank through a pipeline.

The utility model has the advantages that: this liquid cooling formula cylinder magnet separator continuously cools down the inside magnet of cylinder through the coolant liquid that comes from cooling system for magnet works below safe temperature all the time, has guaranteed the magnetic separation effect, has reduced the demagnetization rate of magnet separator, has improved magnet life, has reduced magnet and has changed the frequency, has reduced manufacturing cost.

Drawings

FIG. 1 is a schematic diagram of a liquid-cooled drum magnetic separator according to the present invention;

FIG. 2 is a schematic view of the structure of the roller of the present invention;

FIG. 3 is a schematic side sectional view of the drum of the present invention;

illustration of the drawings: 1. a roller magnetic separator; 11. a housing; 12. a roller assembly; 121. a yoke assembly; 122. a central shaft; 123. an outer drum; 2. a liquid cooling system; 21. a coolant circulation pump; 22. filling the tank; 23. a cooler.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Specific examples are given below.

Referring to fig. 1-3, a liquid-cooled drum magnetic separator comprises a drum magnetic separator 1 and a liquid cooling system 2, wherein the liquid cooling system 2 is arranged outside the drum magnetic separator 1; the roller magnetic separator 1 consists of a roller assembly 12 and a casing 11, wherein the roller assembly 12 is arranged inside the casing 11; the roller assembly 12 includes a magnetic yoke assembly 121, a central shaft 122 and an outer roller 123, the magnetic yoke assembly 121 is a static structure, the magnetic yoke assembly 121 is disposed inside the casing 11, the outer roller 123 is disposed outside the central shaft 122, and the outer roller 123 is rotatably connected to the central shaft 122, so that the outer roller 123 can rotate around the central shaft 122 to drive the material; the liquid cooling system 2 comprises a cooling liquid circulating pump 21, a filling tank 22 and a cooler 23; one end of the coolant circulation pump 21 is provided with a charging tank 22, and one end of the charging tank 22 is provided with a cooler 23.

The shaft ends at the two ends of the central shaft 122 are provided with a cooling liquid inlet hole and a cooling liquid outlet hole which are communicated with the interior of the outer roller 123, and the cooling liquid inlet hole and the cooling liquid outlet hole are both connected with the liquid cooling system 2; a plurality of overflow holes are formed in the outer wall of the central shaft 122 positioned in the outer roller 123; the oil outlet end of the cooling liquid circulating pump 21 is connected with the cooling liquid inlet hole through a pipeline, and the oil injection end of the cooler 23 is connected with the cooling liquid outlet hole through a pipeline; the oil outlet end of the filling tank 22 is connected with the oil filling end of the cooling liquid circulating pump 21 through a pipeline, and the oil outlet end of the cooler 23 is connected with the oil filling end of the filling tank 22 through a pipeline; the oil passages are communicated, so that the cooling liquid can flow circularly; the coolant from the filling tank 22 is sent by the coolant circulation pump 21, enters the inside of the outer drum 123 from the coolant inlet hole at one end of the central shaft 122, forcibly cools the magnet of the yoke assembly 121, and the cooled liquid flows out from the plurality of overflow holes in the central shaft 122 and the coolant outlet hole at the shaft end position of the central shaft 122, is cooled by the cooler 23, and then returns to the filling tank 22 for recycling.

The cooler 23 adopts an air cooler structure, and the cooling liquid of the cooler 23 adopts one or more of diesel oil and kerosene and the mixed liquid thereof; the air flow is used for self-heating cooling, which is beneficial to reducing the cost.

The utility model discloses a theory of operation: in the carbon black production magnetic separation process, hot carbon black enters the roller magnetic separator 1 at the temperature of 80 ℃, rotates along with the surface of the rotating outer roller 123, and is subjected to magnetic separation and purification through the magnetic action; in order to ensure good working temperature of the magnet, a certain amount of kerosene is added into the filling tank 22 as a cooling medium, the kerosene is sprayed into a closed gap between the magnet of the magnetic yoke assembly 121 and the outer roller 123 from a cooling liquid inlet hole on the central shaft 122 through a cooling liquid circulating pump 21, and the magnetic yoke assembly 121 is forcibly cooled; the cooled kerosene overflows from a plurality of overflow holes on the central shaft 122, flows out from a cooling liquid outlet hole of the central shaft 122, is cooled by the cooler 23 and returns to the filling tank 22 to complete a cycle; thereby effectively take away the heat that the carbon black transmitted, guarantee the good operational environment of magnet to guarantee the magnetic separation effect, improve magnet life, reduce and overhaul and the replacement cost.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The liquid-cooled roller magnetic separator is characterized by comprising a roller magnetic separator (1) and a liquid cooling system (2), wherein the liquid cooling system (2) is arranged on the outer side of the roller magnetic separator (1);

the roller magnetic separator (1) consists of a roller assembly (12) and a machine shell (11), wherein the roller assembly (12) is arranged in the machine shell (11); the roller assembly (12) comprises a magnetic yoke assembly (121), a central shaft (122) and an outer roller (123), wherein the magnetic yoke assembly (121) is of a static structure, the magnetic yoke assembly (121) is arranged on the inner side of the machine shell (11), the outer roller (123) is arranged on the outer side of the central shaft (122), and the outer roller (123) is rotatably connected with the central shaft (122);

the liquid cooling system (2) comprises a cooling liquid circulating pump (21), a filling tank (22) and a cooler (23); one end of the cooling liquid circulating pump (21) is provided with a filling tank (22), and one end of the filling tank (22) is provided with a cooler (23);

the shaft ends at the two ends of the central shaft (122) are provided with a cooling liquid inlet hole and a cooling liquid outlet hole which are communicated with the interior of the outer roller (123), and the cooling liquid inlet hole and the cooling liquid outlet hole are both connected with the liquid cooling system (2); a plurality of overflow holes are formed in the outer wall of the central shaft (122) positioned in the outer roller (123); the oil outlet end of the cooling liquid circulating pump (21) is connected with the cooling liquid inlet hole through a pipeline, and the oil injection end of the cooler (23) is connected with the cooling liquid outlet hole through a pipeline.

2. The liquid-cooled drum magnetic separator according to claim 1, wherein the cooler (23) is of an air cooler construction.

3. The liquid-cooled drum magnetic separator according to claim 1, characterized in that the oil outlet end of the filling tank (22) is connected with the oil inlet end of the cooling liquid circulation pump (21) by a pipeline, and the oil outlet end of the cooler (23) is connected with the oil inlet end of the filling tank (22) by a pipeline.