Ammonia water residue filtering device for rare earth separation production line

Abstract

The utility model discloses an ammonia water residue filtering device for a rare earth separation production line, which comprises a device shell, a separation part and a filtering bag, the device shell comprises a shell body, a top shell and a bottom shell, and the top shell and the bottom shell are respectively connected to the top and the bottom of the shell body through connecting flanges; the filter bag is mounted in the device shell, a feeding hole is formed in the side part of the top shell, a feeding control valve is arranged at the feeding hole, and a pressure gauge is arranged at the top of the top shell; the outer wall of the shell body is provided with an output port, the output port is provided with an output pipeline valve, and the separation component is installed outside the device shell and comprises a separation screw rod, a screw sleeve, a first supporting block, a lifting rod, a positioning block and a second supporting block. The ammonia water filtering device can effectively filter slag in raw and auxiliary ammonia water of a rare earth smelting and separating production line, and ensures that the ammonia water is not volatilized to the outside in the filtering process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the rare earth wet metallurgy extraction separation technical field, concretely relates to a kind of ammonia water slag quality filtering device of rare earth separation production line. BACKGROUND

[0002] Rare earth hydrometallurgy is a kind of metallurgical method, and most of the whole process is in solution and solvent. It includes the decomposition of rare earth concentrate, the separation and extraction process of rare earth oxide, rare earth compound and single rare earth metal, and adopts chemical separation processes such as precipitation, crystallization, oxidation-reduction, solvent extraction and ion exchange.

[0003] Application No. 202222561253.9 discloses an alloy impurity filter with convenient inner wall cleaning. The output end of the transmission motor drives the screw rod, transmission disc and transmission belt to rotate. The screw rod pushes the ring plate and brush plate to move upward. The brush plate cleans the inner wall of the filter equipment. The rotating cleaning nozzle sprays high-pressure water in the external high-pressure water pipe to flush the inner wall of the filter equipment. The wastewater produced by flushing and alloy impurities are discharged through the drain pipe. The device does not design to detect and judge whether there are impurities in the filter and whether the filter membrane is complete.

[0004] Application No. 201921091282.5 discloses a circulating ammonia water filtering device. The upper flushing arm above the filter core is driven by the electric motor to cover the upper end of the filter core. At the same time, the lower flushing arm rotates to make the lower end opening of the filter core communicate with the open blowdown valve. The longitudinal high-speed flushing force is formed in the filter core. The longitudinal and transverse backwashing act simultaneously to uniformly clean the entire inner surface of the filter core. However, the driving device needs to use a seal to prevent ammonia gas from evaporating to the outside, which increases the hidden trouble point, improves the maintenance frequency and increases the possibility of personnel contacting ammonia water.

[0005] In the rare earth wet metallurgy extraction separation production process, ammonia water is used as an important raw material to participate in the production reaction. However, if the slag quality contained in the ammonia water is not removed, it will affect the content of non-rare earth slag quality in the separation product, resulting in that the qualified rate of the separation product cannot meet the index requirements and affecting the operation dynamic balance of water phase and organic phase in the mixed-settling extractor. For a large-scale production system, the existence of the above problems will affect the normal operation of the production system. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a kind of ammonia water slag quality filtering device of rare earth separation production line, which can effectively filter the slag quality in the raw and auxiliary materials ammonia water of rare earth smelting separation production line, and ensure that ammonia water does not evaporate to the outside during the filtering process.

[0007] To achieve the above purpose, the technical scheme is as follows:

[0008] The rare earth separation production line ammonia water slag quality filtering device, comprising: device shell, separation component, filter bag, the device shell comprises: shell body, top shell, bottom shell, the top shell and the bottom shell are connected on the top and the bottom of the shell body through the connecting flange respectively, the filter bag is installed inside the device shell, the upper portion of the inner wall of the shell body is provided with a partition plate, the partition plate is provided with a plurality of partition plate through holes, the top opening of the filter bag is connected on the partition plate through hole, the side of the top shell is provided with a feeding port, the feeding port is connected with a feeding pipeline, the feeding port is provided with a feeding control valve, the top of the top shell is provided with a pressure gauge, the outer wall of the shell body is provided with an output port, the output port is provided with an output pipeline valve, the output port is connected with a discharge pipeline, the separation component is installed outside the device shell, the separation component comprises: separation screw, screw sleeve, first supporting block, lifting rod, positioning block, second supporting block, the first supporting block is connected on the top of the top shell, the positioning block and the second supporting block are connected on the outer wall of the shell body, and the positioning block is located on the upper portion of the second supporting block, the outer wall of the separation screw is provided with an external thread, the separation screw is installed in the screw sleeve, the shape of the lifting rod is L-shaped, and the flat section thereof is connected on the side wall of the screw sleeve, the first supporting block is provided with a blind hole, a bearing is fixed in the blind hole, the outer ring of the bearing is connected in the blind hole, and the bottom end of the separation screw is connected on the inner ring of the bearing, the second supporting block is provided with a recess, the positioning block is provided with a positioning through hole, the vertical section of the lifting rod is arranged in the positioning through hole, and the bottom end of the lifting rod abuts against the recess.

[0009] Further, the bottom of the bottom shell is provided with a sewage outlet, the sewage outlet is provided with a sewage control valve, and the sewage outlet is connected with a sewage pipeline.

[0010] Further, the positioning block and the second supporting block are opposite to each other, and the screw sleeve is axially provided with a threaded through hole.

[0011] Further, the outer wall of the shell body is provided with an observation port, the observation port comprises: observation channel, fixed frame, sleeving bolt and glass, the left end of the observation channel is provided with a connecting end, the right end is provided with a connecting frame, the connecting frame is provided with a first through hole, the fixed frame is provided with a second through hole, the glass is provided with a third through hole, the glass is located between the connecting frame and the fixed frame, the sleeving bolt is arranged on the first through hole, the second through hole and the third through hole, and the observation channel, the fixed frame and the glass are connected together, and the shell body is provided with an observation hole, and the connecting end is welded on the observation hole.

[0012] Compared with the prior art, the rare earth separation production line ammonia water slag quality filtering device has the following advantages:

[0013] 1. The utility model is used to solve the key problem of filtering slag quality in ammonia water of raw and auxiliary materials of rare earth smelting separation production line, ensures that the ammonia water without slag quality enters the production system to participate in the reaction, and meets the demand of the production system for high quality raw and auxiliary materials.

[0014] 2, The utility model discloses realize high after filtering ammonia water purity, filtering device safety factor is high, and the device operation and the filtering bag replacement operation are convenient, and the filtering device damage failure rate is low.

[0015] In addition, the safe and reliable use of ammonia water ensures the life safety of operating personnel, which is a basic requirement that must be realized in the operation of a production system; The utility model ensures that ammonia water does not volatilize to the outside world and does not cause safety accidents such as equipment explosion during the filtering process.

[0016] The utility model discloses the pressure gauge can realize the monitoring of the pressure value of the inner chamber of the filtering device, the leakage of the filter bag is discharged, and the safe and reliable operation of the filtering device is ensured.

[0017] 3, The utility model discloses ammonia water residue filtering device, in the case where not influencing whole production system production operation, product quality, subsequent procedure, equipment integrity, residue filtering is carried out to the ammonia water participating in production reaction, and it is guaranteed that the ammonia water with higher purity participates in whole production operation, and does not cause negative influence to the whole production line.

[0018] The utility model discloses according to the nature and granularity of the residue particle of ammonia water, selects the filter bag that satisfies the filtering requirement and carries out residue filtering, since the physical method filtering is used, does not affect any nature of original ammonia water, ensures that when filtering residue, ammonia water can be used normally in the production system, and does not cause additional influence factors for the production system.

[0019] 4, The utility model discloses manufacture is relatively simple, does not need high -end novel making raw material, does not have complicated special manufacturing technology, and also does not need large -scale processing machine and tool to participate in the manufacture, so that the manufacturing cost is low, and the finished product completion rate, the pass rate is high. DRAWINGS

[0020] Figure 1 It is the structure schematic view of the ammonia water residue filtering device of the rare earth separation production line in the utility model.

[0021] Figure 2 It is the structure schematic view of the observation port in the utility model.

[0022] Figure 3 It is the structure schematic view of the separation component in the utility model. DETAILED DESCRIPTION

[0023] The following description fully illustrates the specific implementation of the utility model, so that those skilled in the art can practice and reproduce.

[0024] As Figure 1 shown, it is the structure schematic view of the ammonia water residue filtering device of the rare earth separation production line in the utility model.

[0025] The rare earth separation production line ammonia water slag quality filtering device, comprising: device shell 1, separation component 2, filter bag 3, separation component 2 is installed outside device shell 1, filter bag 3 is installed inside device shell 1.

[0026] Device shell 1 comprises: shell body 11, top shell 12, bottom shell 13, top shell 12 and bottom shell 13 are connected at the top and bottom of shell body 11 through connecting flange 14 respectively.

[0027] The upper part of the inner wall of shell body 11 is provided with baffle 15, baffle 15 is provided with a plurality of baffle through holes, and the top opening of filter bag 3 is connected on the baffle through holes.

[0028] The outer wall of shell body 11 is provided with output port, output port is provided with output pipeline valve 18, and output port is connected with discharge pipeline.

[0029] The bottom of bottom shell 13 is provided with blowdown port, blowdown port is provided with blowdown control valve 17, and blowdown port is connected with blowdown pipeline.

[0030] As shown in the figure, it is the structure schematic diagram of observation port 4 in the utility model. Figure 2

[0031] In order to facilitate the observation of filtering state, the outer wall of shell body 11 is provided with observation port 4, and the observation port 4 comprises: observation channel 41, fixed frame 42, sleeving bolt 43 and glass 44.

[0032] The outer wall of shell body 11 is provided with observation hole, and the connecting end head is welded on the observation hole.

[0033] As shown in the figure, it is the structure schematic diagram of separation component 2 in the utility model. Figure 3

[0034] The separation component 2 comprises: separation screw 21, screw sleeve 22, first supporting block 23, lifting rod 24, positioning block 25 and second supporting block 26.

[0035] ​​The outer wall of the separating screw 21 is provided with external threads, the separating screw 21 is installed in a threaded sleeve 22, the threaded sleeve 22 is axially provided with a threaded hole; the lifting rod 24 is in the shape of an L, the flat section of the lifting rod 24 is connected to the side wall of the threaded sleeve 22; the first supporting block 23 is provided with a blind hole, a bearing is fixed in the blind hole, the outer ring of the bearing is connected in the blind hole, the bottom end of the separating screw 21 is connected to the inner ring of the bearing, the second supporting block 26 is provided with a recess; the positioning block 25 is provided with a positioning hole, the vertical section of the lifting rod 24 is inserted in the positioning hole, the bottom end of the lifting rod 24 abuts against the recess.

[0036] The first supporting block 23 is connected to the top of the top shell 12, the positioning block 25 and the second supporting block 26 are connected to the outer wall of the outer shell body 11, the positioning block 25 and the second supporting block 26 are opposite to each other, and the positioning block 25 is located at the upper portion of the second supporting block 26.

[0037] The use process is as follows:

[0038] 1. The slag filter is started to run, the output pipeline valve 18 and the feed control valve 19 are opened, the blowdown control valve 17 is closed, the ammonia water to be filtered is introduced into the device shell 1 through the feed inlet of the top shell 12, the ammonia water falls into the filter bag 3, the slag in the ammonia water is retained in the filter bag 3, the filtered ammonia water is discharged through the output port and enters the production system to participate in production, and the pressure in the device shell 1 is observed through the pressure gauge 16 to prevent the pressure from being too high; the filtering condition in the device shell 1 is observed through the observation port 4.

[0039] 2. The slag filter is discharged, which includes two modes of slag discharge and filter bag slag removal.

[0040] (1) Slag discharge operation: the output pipeline valve 18 is closed, the feed control valve 19 is adjusted to be small, the pressure gauge 16 displays a low pressure value, the blowdown control valve 17 is opened, and the slag discharge operation is performed.

[0041] (2) Filter bag slag removal: the connecting flange 14 between the top shell 12 and the outer shell body 11 is opened, the separating screw 21 is rotated, the separating screw 21 and the threaded sleeve 22 are relatively displaced, the separating screw 21 is lifted, the top shell 12 is lifted, the top shell 12 is separated from above the outer shell body 11 by rotating the separating screw 21; the filter bag 3 is removed from the partition plate 15 (the connecting bolts of the filter bag 3 and the partition plate 15 are disassembled), the slag in the filter bag 3 is removed, and the filter bag slag removal operation is completed.

[0042] 3. Safety protection.

[0043] In the normal operation process of the slag quality filtering device, the production system is relatively stable, and the pressure value of the pressure gauge 16 is relatively stable; when the slag quality filtering device is blocked by slag, the pressure value of the pressure gauge 16 will rapidly increase; when the filter bag 3 and the slag quality filtering device leak, the pressure value of the pressure gauge 16 will rapidly decrease. The operator can timely master the production situation and prevent accidents.

[0044] The terms used in the utility model are illustrative and not restrictive. Since the utility model can be embodied in various forms without departing from the spirit or essence of the technical scheme, it should be understood that the above examples are not limited to any of the foregoing details, but should be widely interpreted within the spirit and scope defined by the appended claims, and therefore all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A rare earth separation production line ammonia slag filtering device, characterized in that: include: Device shell, separation component, filter bag, the device shell includes: shell body, top shell, bottom shell, the top shell and bottom shell are connected to the top and bottom of the shell body respectively through connecting flanges; the filter bag is installed inside the device shell, the upper part of the inner wall of the shell body is provided with a partition, the partition is provided with multiple partition through holes, and the top opening of the filter bag is connected to the partition through holes; the side of the top shell is provided with a feed port, the feed port is connected to the feed pipe, the feed port is provided with a feed control valve, and the top of the top shell is provided with a pressure gauge; the outer wall of the shell body is provided with an output port, the output port is provided with an output pipe valve, and the output port is connected to the discharge pipe; the separation component is installed outside the device shell, the separation component includes: separation The separation screw, the screw sleeve, the first support block, the lifting rod, the positioning block, and the second support block, the first support block is connected to the top of the top shell, the positioning block and the second support block are connected to the outer wall of the shell body, and the positioning block is located on the upper part of the second support block; the outer wall of the separation screw is provided with an external thread, the separation screw is installed in the screw sleeve, the lifting rod is L-shaped, and its straight section is connected to the side wall of the screw sleeve; the first support block is provided with a blind hole, a bearing is fixed in the blind hole, the outer ring of the bearing is connected in the blind hole, and the bottom end of the separation screw is connected to the inner ring of the bearing; the second support block is provided with a pit; the positioning block is provided with a positioning through hole, the vertical section of the lifting rod is passed through the positioning through hole, and the bottom end of the lifting rod is against the pit.

2. The ammonia slag filtering device for rare earth separation production line according to claim 1, characterized in that: A sewage outlet is provided at the bottom of the bottom shell, a sewage outlet is provided with a sewage control valve, and the sewage outlet is connected to a sewage pipe.

3. The ammonia slag filtering device for rare earth separation production line according to claim 1, characterized in that: The positioning block and the second supporting block are positioned opposite to each other, and a threaded through hole is axially arranged on the screw sleeve.

4. The ammonia slag filtering device for rare earth separation production line according to claim 1, characterized in that: An observation port is provided on the outer wall of the shell body, and the observation port includes: an observation channel, a fixing frame, a set bolt, and a glass. A connecting terminal is provided at the left end of the observation channel, and a connecting frame is provided at the right end. The connecting frame is provided with a first through hole, the fixing frame is provided with a second through hole, and the glass is provided with a third through hole. The glass is located between the connecting frame and the fixing frame. The set bolts are passed through the first through hole, the second through hole, and the third through hole to connect the observation channel, the fixing frame, and the glass together; the shell body is provided with an observation hole, and the connecting terminal is welded to the observation hole.

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