CN220727263U - Valve control device for lithium hexafluorophosphate crystallization equipment - Google Patents

Abstract

A valve control device for lithium hexafluorophosphate crystallization equipment, through setting up conductive slip ring and conductive slip ring stator support, conductive slip ring rotor installs in the feed inlet side of crystallizer barrel and main shaft junction, and the centre gripping is in junction circular flange periphery, electronic trip valve flange and crystallizer liquid outlet flange joint, rotor outlet wire connects the angle stroke executor, conductive slip ring stator passes through the support to be fixed on bearing support feed inlet side top, stator outlet wire connects DCS system switching value signal input, output module, the transmission of accessible conductive slip ring realization DCS system control signal and valve position feedback signal realizes master control room remote operation fluid-discharge valve.

Description

A valve control device for lithium hexafluorophosphate crystallization equipment

Technical Field

The utility model belongs to the technical field of rotary crystallization, and particularly relates to a valve control device for lithium hexafluorophosphate crystallization equipment.

Background technique

Lithium hexafluorophosphate, with the chemical formula LiPF6, is a white crystal or powder, easily soluble in water, low-concentration methanol, ethanol, acetone, carbonates and other organic solvents, and is mainly used as a lithium-ion battery electrolyte material. Common production methods include wet method, dry method and solvent method. As an important component of lithium-ion battery electrolyte, lithium hexafluorophosphate plays a vital role in the rapid development of lithium-ion batteries. At present, China is vigorously developing new energy sources, and by changing the proportion of new energy sources, it has achieved energy adjustment at the national strategic level. As the largest consumer of lithium-ion batteries, the vigorous development of new energy vehicles can not only reduce the dependence on petrochemical energy at the automotive level, but also reduce environmental pressure, and is a key development target.

The utility model with announcement number CN217132206U discloses an angle measuring device for rotary crystallization equipment, and the key points of its technical solution include a photoelectric switch sensor installed on the housing of a large gear, a Hall switch sensor installed on the housing of a large gear, a permanent magnet installed on the side of the gear teeth and close to the Hall switch sensor, a signal coupling input circuit, a counting module and a central processing unit; the signal output end of the photoelectric switch sensor, the signal output end of the Hall switch sensor, the output end of the forward running contact of the main motor of the crystallization equipment and the output end of the reverse running contact of the main motor of the crystallization equipment are respectively connected to the counting module through the signal coupling input circuit, and the output end of the counting module is connected to the central processing unit. The device can realize the automatic measurement of the rotation angle of the rotary crystallization equipment with high measurement accuracy. However, in actual use, manual drainage is required, and the probability of on-site safety accidents still exists.

In order to avoid accidents and personal safety of on-site draining personnel when draining the rotary crystallizer, and to improve the draining efficiency of the rotary crystallizer, it is urgently necessary to realize the draining of the rotary crystallizer through the use of automation.

Summary of the invention

The purpose of the utility model is to provide a valve control device for lithium hexafluorophosphate crystallization equipment in view of the deficiencies of the above-mentioned prior art, which controls the valve control of the crystallization equipment through a DCS system, avoids personnel harm caused by manual operation, and saves labor costs.

In order to solve the above technical problems, the technical solution adopted by the utility model is:

A valve control device for lithium hexafluorophosphate crystallization equipment comprises a conductive slip ring and a conductive slip ring stator bracket, wherein the conductive slip ring is set as a two-half structure;

The rotor of the conductive slip ring is installed at the junction of the feed port side of the crystallizer cylinder and the main shaft, and is clamped on the outer periphery of the flange located at the junction, and the crystallizer liquid outlet flange is also connected with an electric cut-off valve flange, and the electric cut-off valve flange is connected to the rotor outlet line of the rotor and is controlled by it;

The stator of the conductive slip ring is fixed to the top of the bearing bracket located on the feed inlet side through the conductive slip ring stator bracket, and the stator outlet line of the stator is connected to the DCS system switch signal input and output module control.

The conductive slip ring is provided with six layers and correspondingly provided with six wires, and the six wires are respectively used to connect the switch wire and the signal feedback wire of the electric valve;

The stator of the conductive slip ring leads the switch line of the electric valve and the signal feedback line to the DCS control system to automatically control the liquid discharge of the rotary crystallizer equipment.

Two carbon brushes distributed at an angle are arranged on the stator of the conductive slip ring corresponding to each layer of slip ring.

Each layer of slip ring is provided with two carbon brushes with an angle of 30°.

The conductive slip ring stator bracket is configured as a Z-shaped bracket.

The conductive slip ring of the two-half structure is assembled and fixed by a fixing plate.

The angular stroke actuator includes a photoelectric switch sensor and a Hall switch sensor.

The beneficial effects of the utility model are:

(1) The valve control device for lithium hexafluorophosphate crystallization equipment is provided with a conductive slip ring and a conductive slip ring stator bracket. The conductive slip ring rotor is installed at the joint between the feed inlet side of the crystallizer cylinder and the main shaft and is clamped on the outer periphery of the circular flange at the joint. The electric shut-off valve flange is connected to the crystallizer liquid outlet flange. The rotor outlet is connected to the angular stroke actuator. The conductive slip ring stator is fixed to the top of the feed inlet side of the bearing bracket through a bracket. The stator outlet is connected to the DCS system switch signal input and output module. The DCS system control signal and the valve position feedback signal can be transmitted through the conductive slip ring, so that the main control room can remotely operate the drain valve.

(2) The utility model transforms an angle measuring device for a rotary crystallization device, adds a conductive slip ring and a conductive slip ring stator bracket to achieve automatic control of the drainage of the lithium hexafluorophosphate rotary crystallizer, thereby resolving the possibility of personal safety accidents caused by manual drainage, and at the same time improving the drainage efficiency of the rotary crystallizer equipment and the production efficiency of lithium hexafluorophosphate.

(2) The valve control of the crystallization equipment is controlled by the DCS system to avoid personal hazards caused by manual operation, avoid accidents and crises when draining the rotary crystallizer, and ensure the personal safety of the drainage personnel on site, saving labor costs and improving the drainage efficiency of the rotary crystallizer.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a side view schematic diagram of the utility model;

FIG3 is an assembly diagram of the utility model and the rotary crystallizer;

FIG. 4 is a schematic diagram of the structure of a rotary crystallizer.

Detailed ways

The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

The utility model provides a valve control device for lithium hexafluorophosphate crystallization equipment, as shown in FIGS. 1 to 4 .

A valve control device for lithium hexafluorophosphate crystallization equipment comprises a conductive slip ring 4 and a conductive slip ring stator bracket 5, wherein the conductive slip ring 4 is configured as a two-half structure; in this embodiment, the conductive slip ring 4 of the two-half structure is assembled and fixed by a fixing plate 6, and is detachably connected and fixed by provided connecting bolts during splicing.

The rotor 41 of the conductive slip ring 4 is installed at the junction of the feed port side of the crystallizer cylinder 3 and the main shaft, and is clamped on the outer periphery of the flange located at the junction. The crystallizer liquid outlet flange is also connected to an electric shut-off valve flange, and the electric shut-off valve flange is connected to the angular stroke actuator through the rotor outlet line 411 of the rotor and is controlled by it.

The stator 42 of the conductive slip ring is fixed to the top of the bearing bracket on the feed inlet side through the conductive slip ring stator bracket 5, and the stator outlet line 421 of the stator is connected to the DCS system switch signal input and output module control. The conductive slip ring realizes the transmission of the DCS system control signal and the valve position feedback signal, and realizes the remote operation of the drain valve in the main control room.

The conductive slip ring is provided with six layers and six corresponding conductors, and the six conductors are respectively used to access the six conductors from the angle measuring device for the rotary crystallizer equipment, and the six conductors are respectively the switch line (2 live and 1 zero) and the signal feedback line (2 live and 1 zero) of the electric valve; and the stator of the conductive slip ring leads the switch line of the electric valve and the signal feedback line to the DCS control system to realize the automatic control of the liquid discharge of the rotary crystallizer equipment.

The stator of the conductive slip ring is provided with two carbon brushes distributed at an angle corresponding to each layer of slip rings. Preferably, each layer of slip rings is provided with two carbon brushes distributed at an angle of 30°.

The conductive slip ring stator bracket 5 is configured as a Z-shaped bracket, which is used to fix the stator of the conductive slip ring on the upper part of the main shaft of the rotary crystallizer equipment.

The angular travel actuator includes a photoelectric switch sensor and a Hall switch sensor. In this embodiment, the photoelectric switch sensor is an M18 diffuse reflection PNP three-wire output, and the Hall switch sensor is an M12 PNP three-wire normally open. The photoelectric switch sensor senses the tooth gap passed by the gear, counts once each tooth passed, and converts the gear rotation angle by the accumulated number of times; while the Hall switch sensor senses the permanent magnet passed by the gear, and after each induction, the photoelectric switch sensor count is cleared or reset.

When in use, the valve control device is installed on the angle measuring device of the rotary crystallization equipment, as shown in Figure 4, which is a side view of the rotary crystallizer (without the valve control device installed). The discharge port 1 and the feed port 2 are located on both sides of the central end face of the main shaft respectively; the rotary crystallizer main shaft 7 drives the rotary crystallizer to rotate clockwise or counterclockwise; the rotary crystallizer cylinder 3 is used to contain lithium hexafluorophosphate solution.

Figures 1 and 2 show the conductive slip ring involved in the utility model. The conductive slip ring is a two-half type with six layers inside, which are used to connect 6 wires of an angle measuring device for rotary crystallization equipment. These six wires are the switch wires (2 live and 1 zero) and signal feedback wires (2 live and 1 zero) of the electric valve. The slip ring rotor is installed on the main shaft of the rotary crystallizer equipment, and the stator is installed on the conductive slip ring stator bracket; there are two carbon brushes at an angle of 30 degrees corresponding to each layer of slip ring on the conductive slip ring stator to keep the conductive slip ring in an energized state at all times. At the same time, the conductive slip ring stator leads the switch wires (2 live and 1 zero) and signal feedback wires (2 live and 1 zero) of the electric valve to the DCS control room, and is connected to the DCS control system to realize the automatic control of the liquid discharge of the rotary crystallizer equipment.

The utility model is based on an angle measuring device for rotary crystallization equipment, and controls the switch of a drain valve (angular stroke ball valve) of a lithium hexafluorophosphate rotary crystallizer by using a distributed control system, i.e., a DCS system, so as to replace the manual operation of the drain valve when the crystallizer is drained; a conductive slip ring rotor is installed at the joint of the feed inlet side of a crystallizer cylinder and a main shaft, clamped at the outer periphery of a circular flange at the joint, an electric cut-off valve flange is connected to a crystallizer liquid outlet flange, a rotor outlet line is connected to an angular stroke actuator, a conductive slip ring stator is fixed to the top end of the feed inlet side of a bearing bracket through a bracket, a stator outlet line is connected to a DCS system switch signal input and output module, and transmission of a DCS system control signal and a valve position feedback signal is realized through the conductive slip ring, so as to realize remote operation of the drain valve in a main control room.

If the words "first", "second" and so on are used in this patent to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description, and the above words have no special meaning.

The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "center", etc. indicate directions or positional relationships 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, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

The endpoints and any values of the ranges disclosed in this article are not limited to the exact ranges or values, and these ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the endpoint values of each range, the endpoint values of each range and the individual point values, and the individual point values can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

Claims (7)

1. A valve control device for lithium hexafluorophosphate crystallization equipment, characterized in that: it includes a conductive slip ring and a conductive slip ring stator bracket, and the conductive slip ring is set as a two-half structure; The rotor of the conductive slip ring is installed at the junction of the feed port side of the crystallizer cylinder and the main shaft, and is clamped on the outer periphery of the flange located at the junction, and the crystallizer liquid outlet flange is also connected with an electric shut-off valve flange, and the electric shut-off valve flange is connected to the angular stroke actuator through the rotor outlet line of the rotor and is controlled by it; The stator of the conductive slip ring is fixed to the top of the bearing bracket located on the feed inlet side through the conductive slip ring stator bracket, and the stator outlet line of the stator is connected to the DCS system switch signal input and output module control. 2. A valve control device for lithium hexafluorophosphate crystallization equipment according to claim 1, characterized in that: the conductive slip ring is provided with six layers and six wires are correspondingly provided, and the six wires are respectively used to connect the switch line and the signal feedback line of the electric valve; The stator of the conductive slip ring leads the switch line of the electric valve and the signal feedback line to the DCS control system to automatically control the liquid discharge of the rotary crystallizer equipment. 3. A valve control device for lithium hexafluorophosphate crystallization equipment according to claim 1, characterized in that: two carbon brushes distributed at an angle are provided on the stator of the conductive slip ring corresponding to each layer of slip ring. 4. A valve control device for lithium hexafluorophosphate crystallization equipment according to claim 3, characterized in that each layer of slip ring is provided with two carbon brushes with an angle of 30°. 5. A valve control device for lithium hexafluorophosphate crystallization equipment according to any one of claims 1 to 4, characterized in that the conductive slip ring stator bracket is configured as a Z-shaped bracket. 6. A valve control device for lithium hexafluorophosphate crystallization equipment according to claim 5, characterized in that the conductive slip ring of the two-half structure is assembled and fixed by a fixing plate. 7. A valve control device for lithium hexafluorophosphate crystallization equipment according to claim 5, characterized in that the angular stroke actuator includes a photoelectric switch sensor and a Hall switch sensor.