Multi-stage condensation recovery process and device for preparing anhydrous copper chloride

Abstract

The invention discloses a multi-stage condensation recovery process and device for preparing anhydrous copper chloride, and belongs to the technical field of anhydrous copper chloride preparation. The device specifically comprises an adjusting base, supporting stand columns are symmetrically arranged at the tops of the two sides of the adjusting base, and a material changing connecting cylinder frame is in transmission sleeving connection between the inner walls of the tops of the multiple sets of supporting stand columns; one end of the material changing connecting cylinder frame is sleeved with a water removing hot cylinder; according to the invention, a heater and a circulating fan are cooperated, a rotating frame in the barrel drives a micropore inner barrel I to rotate, copper chloride is uniformly heated and accelerated to evaporate, the circulating fan conveys dry hot air, a scavenging air valve I realizes heat cyclic utilization and condensation links, a condenser generates cold air, and a constant-speed rotating frame uniformly condenses the copper chloride; the exhaust plate and the second scavenging valve maintain the condensation environment stable, the air cylinder part is adjusted to open the discharging end cover, concentrated discharging is facilitated, and the machining efficiency and the product quality are integrally improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of anhydrous copper chloride preparation, in particular to a multistage condensation recovery process and device for preparing anhydrous copper chloride. BACKGROUND

[0002] Traditional anhydrous copper chloride is prepared by heating and dehydrating copper chloride dihydrate crystals in a hydrogen chloride atmosphere, but the production conditions of the method are harsh, the production equipment is required to be high, the environment and the operating personnel are greatly harmed, and the obtained product is in a powder form, which is not conducive to industrialization promotion. In addition, when anhydrous copper chloride is prepared by taking copper chloride dihydrate in etching waste liquid of circuit board copper recovery as raw material, it is difficult to effectively remove ammonium salt and other anion impurities, and metal impurities also affect the product purity. When basic copper chloride is used to react with hydrochloric acid to prepare copper chloride dihydrate, if high-purity electronic grade products are to be obtained, the introduction of co-precipitation materials will cause a large increase in other impurities, and the purity of the obtained anhydrous copper chloride after subsequent drying is also difficult to guarantee.

[0003] In combination with the above content, it needs to be explained that: a production process of copper chloride is disclosed in a Chinese patent with the application number CN2024112565938, copper powder and chlorine gas are pretreated first, then anhydrous ethanol is used to dissolve copper chloride raw materials, and high-temperature nitrogen gas is used for reverse evaporation to remove anhydrous ethanol, so as to avoid the generation of oxidation and other side reactions of the granules and improve the purity of the prepared copper chloride granules. However, the above patent content does not involve the process content of precise quantitative feeding and rapid feeding. In the water removal process, the copper chloride is unevenly heated, the water evaporation efficiency is low, and there is also a lack of effective hot air circulation, resulting in serious waste of heat. In the hot gas treatment, high-efficiency recycling cannot be realized, the external environment is easy to interfere with the treatment process, and the energy consumption is high. In the condensation stage, the traditional stacking condensation mode is easy to produce local temperature difference, which affects the product quality, and the hot gas is not discharged in time. SUMMARY

[0004] The purpose of the present application is to provide a multistage condensation recovery process and device for preparing anhydrous copper chloride to solve the problems.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a multistage condensation recovery device for preparing anhydrous copper chloride, comprising an adjusting base, support columns are symmetrically arranged at the top of both sides of the adjusting base, a plurality of groups of support columns are drivingly sleeved with a material replacement connecting cylinder frame between the inner walls at the top of the support columns, a dehydration hot cylinder is sleeved and arranged at one end of the material replacement connecting cylinder frame, a low-temperature rotating cylinder is sleeved and arranged at the other end of the material replacement connecting cylinder frame, and a partition gate valve for partitioning the dehydration hot cylinder and the low-temperature rotating cylinder is sleeved and arranged at the top of the material replacement connecting cylinder frame. A microporous inner cylinder 1 is sleeved in the center of the inner part of the dehydration heat cylinder, a heater is provided on the outer wall of the bottom of the dehydration heat cylinder, a feed end cover is sleeved on one end face of the dehydration heat cylinder, a feed pipe valve is provided on the top of one end of the feed end cover, a microporous inner cylinder 2 is sleeved in the center of the inner part of the low-temperature rotary cylinder, an air jet arc plate sleeved on the inner wall of the low-temperature rotary cylinder is provided below the microporous inner cylinder 2, and a discharge end cover is sleeved on the end face of the low-temperature rotary cylinder away from the material exchange connection cylinder frame.

[0006] Furthermore, a force-removing base plate connected to the supporting column is provided at the bottom of the adjustment base, and lifting and rotating cylinders are symmetrically provided at the top of both ends of the force-removing base plate, and a telescopic supporting arm is sleeved on the top of the lifting and rotating cylinder.

[0007] Furthermore, symmetrical depressions are provided on both sides of the material exchange connection drum frame with rotating shaft seats sleeved with the supporting columns, and a condenser is nested and connected in the bottom of the material exchange connection drum frame.

[0008] Furthermore, an inner rotating frame is provided on the inner walls of both ends of the dehydration heat cylinder, and an annular jet frame is provided on the inner wall of the inner rotating frame of the cylinder close to the end of the dehydration heat cylinder connected to the material exchange connection cylinder frame. Several groups of metal brackets connected to the microporous inner cylinder are provided on the cross section of one end of the inner rotating frame close to the annular jet frame. A heat conducting member is provided on the top of the heater, which passes through the bottom of the dehydration heat cylinder and is close to the microporous inner cylinder. A circulating fan is provided through the bottom shell of one side of the heater.

[0009] Furthermore, several groups of water filter plates are provided on the top of the inner wall of one end of the feed end cover close to the dehydration heat cylinder, a water collecting trough is provided at the bottom of the water filter plate, an air gathering ring is provided on the edge of the end face of one end of the feed end cover close to the feed pipe valve, an air exchange valve is symmetrically provided between the inner walls on both sides of the air gathering ring, and a water filter drain pipe connected to the water collecting trough is provided on the outer wall of the bottom of the feed end cover.

[0010] Furthermore, uniform speed rotating frames connected to the second microporous inner cylinder are symmetrically mounted at both ends of the low temperature rotating cylinder, and an exhaust plate penetrating the second microporous inner cylinder is mounted on the top of the low temperature rotating cylinder.

[0011] Furthermore, a fixing bracket connected to the outer wall of the low-temperature drum is provided on the top of the discharge end cover, an adjusting cylinder part hinged to the discharge end cover is provided on the end face of the fixing bracket, and a second air exchange valve movably connected to the exhaust plate is provided on the outer wall of the discharge end cover.

[0012] The present invention also provides a multi-stage condensation recovery process for preparing anhydrous copper chloride, comprising the following steps: Feeding and loading: feeding through the feed pipe valve and adjusting the base to achieve fast loading; Equipment adjustment: The support column and the telescopic support arm coordinate to adjust the horizontal relationship between the dehydration heat drum and the low-temperature drum; Dehydration heat treatment: the heater cooperates with the circulating fan, the rotating frame in the cylinder makes the copper chloride uniform dehydration, the air exchange valve realizes heat recycling and loss reduction; Copper chloride transfer: cooperate with the lifting rotary cylinder to realize the transfer of copper chloride from the dehydration heat cylinder to the low-temperature rotating drum; Condensation treatment: the condenser cooperates with the uniform rotating frame to realize uniform condensation of copper chloride.

[0013] The beneficial effects of the present application are: The present application controls the amount of copper chloride entering through the feed pipe valve, adjusts the base, the supporting column, the lifting rotary cylinder and the telescopic supporting arm rod to cooperate with each other, so that the dehydration heat cylinder is tilted at one end when loading, which facilitates fast loading and improves loading efficiency. The heater uses the circulating fan to extract external air and heat, and the heat conduction piece evaporates the copper chloride in the dehydration heat cylinder at high temperature, and the rotating frame in the cylinder and the uniform rotating frame are driven by the micro motor to rotate the micro-porous inner cylinder, so that the copper chloride is uniformly heated and the water evaporation is accelerated.

[0014] The air extracted by the circulating fan is heated by the contact of the partial heat conduction pipe and the heater heat conduction piece, and then passes through the air filter and the water vapor separator to deliver dry hot air to the dehydration heat cylinder, avoiding interference with the dehydration process, ensuring the dehydration effect and ensuring the delivery of dry hot air. The air exchange valve extracts high-temperature hot air containing water in the dehydration heat cylinder, and after preliminary drainage through the water filter plate, the hot air is guided into the air filter and the water vapor separator, and then flows back through the heat conduction piece and is input into the annular air jet frame, reducing heat loss and realizing efficient use of energy.

[0015] After the dehydration treatment of the copper chloride in the dehydration heat cylinder is completed, the shut-off gate valve is opened, cooperating with the lifting rotary cylinder, the telescopic supporting arm rod and the supporting column to make the dehydration heat cylinder tilt at one end, so as to facilitate the pouring of copper chloride into the low-temperature rotating drum for fast unloading and transfer. The condenser extracts part of the hot air of the circulating fan to replace the low-temperature cold air, which is sprayed from the lower part to the bottom of the micro-porous inner cylinder two through the air jet arc plate, and the uniform rotating frame drives the micro-porous inner cylinder two to rotate, so that the copper chloride uniformly contacts the low-temperature cold air, avoids local temperature difference and ensures the condensation effect and uniform condensation. The holes on the surface of the exhaust plate and the pipe connected with the air exchange valve two are continuously affected by the low-temperature cold air in the low-temperature rotating drum, which concentrates and exhausts the hot air in the top area, maintains the stability of the condensation environment and effectively exhausts the air. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0017] Figure 1 It is a perspective view of the overall structure of the present application. Figure 2 It is a structural schematic view of the adjusting base of the present application. Figure 3 It is a structural schematic view of the water-removing heating cylinder of the present application. Figure 4 It is a structural schematic view of the feeding end cover of the present application. Figure 5 It is a structural schematic view of the material-replacing connecting cylinder frame of the present application. Figure 6 It is a structural schematic view of the low-temperature rotating cylinder of the present application. Figure 7 It is a structural schematic view of the discharging end cover of the present application.

[0018] Reference signs: 1, adjusting base; 101, supporting column; 102, force-releasing bottom plate; 103, lifting rotary cylinder; 104, telescopic supporting arm rod; 2, water-removing heating cylinder; 201, inner rotating frame; 202, annular jet frame; 203, micro-porous inner cylinder I; 204, heater; 205, circulating fan; 3, material-replacing connecting cylinder frame; 301, partitioning gate valve; 302, rotary shaft seat; 303, condenser; 4, low-temperature rotating cylinder; 401, micro-porous inner cylinder II; 402, uniform-speed rotating frame; 403, exhaust plate; 404, jet arc plate; 5, feeding end cover; 501, gas-gathering ring; 502, gas-exchanging valve I; 503, feeding pipe valve; 504, water-filtering discharge pipe; 505, water-collecting tank; 506, water-filtering plate; 6, discharging end cover; 601, fixed frame; 602, adjusting cylinder piece; 603, gas-exchanging valve II. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0020] Embodiment one: please refer to Figure 1 - Figure 7As shown, the embodiment is a multi-stage condensation recovery device for preparing anhydrous copper chloride, which comprises an adjusting base 1, support columns 101 symmetrically arranged at the top of both sides of the adjusting base 1, a plurality of groups of transmission sleeves are connected between the inner walls at the top of the support columns 101, a material replacement connecting cylinder frame 3 is sleeved, a dehydrating hot cylinder 2 is arranged at one end of the material replacement connecting cylinder frame 3, a low-temperature rotating cylinder 4 is arranged at the other end of the material replacement connecting cylinder frame 3, and a partition valve 301 is arranged at the top of the material replacement connecting cylinder frame 3 to partition the dehydrating hot cylinder 2 and the low-temperature rotating cylinder 4.

[0021] A force relieving bottom plate 102 is arranged at the bottom of the adjusting base 1 and connected with the support columns 101, a lifting rotary cylinder 103 is symmetrically arranged at the top of both ends of the force relieving bottom plate 102, a telescopic support arm 104 is sleeved at the top of the lifting rotary cylinder 103, the copper chloride pipe to be processed is transported into the inside of a feeding pipe valve 503, and the feeding pipe valve 503 guides a certain amount of copper chloride into the inside of the dehydrating hot cylinder 2. In this state, the adjusting base 1 drives the dehydrating hot cylinder 2 to be tilted at one end through the support columns 101, and the telescopic support arm 104 is driven to rotate upward by the lifting rotary cylinder 103 close to one end of the dehydrating hot cylinder 2, so as to lift and support the bottom of the dehydrating hot cylinder 2, which is helpful for the rapid loading of the copper chloride to be processed.

[0022] After the dehydrating hot cylinder 2 is filled with copper chloride, the support columns 101 are driven through the rotary motor arranged at the top and connected in transmission with the rotary shaft seat 302, and the dehydrating hot cylinder 2 and the low-temperature rotating cylinder 4 are kept in a horizontal state in cooperation with a plurality of groups of lifting rotary cylinders 103 and telescopic support arms 104, or the horizontal relationship between the dehydrating hot cylinder 2 and the low-temperature rotating cylinder 4 is adjusted according to the processing needs of the copper chloride, with the support columns 101 as the central lever point.

[0023] Rotary shaft seats 302 are symmetrically recessed and sleeved with the support columns 101 on both sides of the material replacement connecting cylinder frame 3, and condensers 303 are inlaid and connected at the bottom of the material replacement connecting cylinder frame 3; after the single-group copper chloride dehydration treatment in the inside of the dehydrating hot cylinder 2 is completed, the partition valve 301 is started to open, the temporary connection between the dehydrating hot cylinder 2 and the low-temperature rotating cylinder 4 is kept, and the dehydrating hot cylinder 2 is kept tilted at one end in cooperation with the lifting rotary cylinders 103, the telescopic support arms 104 and the support columns 101, which is helpful for the copper chloride accumulated in the inside of the dehydrating hot cylinder 2 to be poured into the inside of the low-temperature rotating cylinder 4.

[0024] The condenser 303 extracts part of the hot air inside the circulating fan 205, replaces it with low-temperature cold air, and sends the low-temperature cold air pipe to the inside of the jet arc plate 404. The jet arc plate guides the low-temperature cold air to spray from bottom to top into the micro-porous inner cylinder two 401 at the bottom, for low-temperature erosion of the copper chloride accumulated inside the micro-porous inner cylinder two 401, to build a condensation process, and the uniform speed rotating frame 402 drives the micro-porous inner cylinder two 401 to rotate, so that the copper chloride accumulated inside the micro-porous inner cylinder two 401 is uniformly contacted with the low-temperature cold air, effectively avoiding the local temperature difference existing in the traditional accumulation condensation process.

[0025] Embodiment two: a multi-stage condensation recovery device for preparing anhydrous copper chloride, comprising a micro-porous inner cylinder one 203 arranged in the center of the de-watering cylinder 2, a heater 204 arranged on the outer wall of the bottom of the de-watering cylinder 2, a feeding end cover 5 arranged at one end of the de-watering cylinder 2, a feeding pipe valve 503 arranged at one end of the top of the feeding end cover 5, a micro-porous inner cylinder two 401 arranged in the center of the low-temperature rotating cylinder 4, a jet arc plate 404 arranged below the micro-porous inner cylinder two 401 and embedded in the inner wall of the low-temperature rotating cylinder 4, and a discharging end cover 6 arranged at the end face of the low-temperature rotating cylinder 4 away from the material replacement connecting cylinder frame 3.

[0026] A cylinder inner rotating frame 201 is arranged on the inner wall of both ends of the de-watering cylinder 2, an annular jet arc plate 202 is arranged on the inner wall of the cylinder inner rotating frame 201 close to the material replacement connecting cylinder frame 3, a plurality of groups of metal supports connected with the micro-porous inner cylinder one 203 are arranged on the cross section of one end of the cylinder inner rotating frame 201 close to the annular jet arc plate 202, a heat conduction member is arranged on the top of the heater 204 and penetrates the bottom of the de-watering cylinder 2 and is close to the micro-porous inner cylinder one 203, and a circulating fan 205 is arranged in the bottom shell of one side of the heater 204.

[0027] The heater 204 extracts external air through the circulating fan 205. The heater 204 first guides high-temperature heat to the inner wall of the bottom of the de-watering cylinder 2 through the heat conduction member, for high-temperature evaporation and de-watering treatment of the copper chloride accumulated in the micro-porous inner cylinder one 203. The cylinder inner rotating frame 201 and the uniform speed rotating frame 402 are both provided with a micro motor connected by separate transmission. The cylinder inner rotating frame 201 drives the micro-porous inner cylinder one 203 to keep rotating, which helps the micro-porous inner cylinder one 203 to be uniformly heated, so that the water contained therein is quickly evaporated and treated.

[0028] The circulating fan 205 is in partial contact with the heat conduction part of the heater 204 through part of the heat conduction pipe, and is used for heating the extracted external air. A plurality of air filters and water vapor separators are arranged on the side of the circulating fan 205, which can ensure that the alternating air delivered into the water-removing heat cylinder 2 is dry hot air, so as to avoid interference with the water-removing treatment of the cupric chloride in the water-removing heat cylinder 2 and interference with the ambient temperature and humidity of the water-removing heat cylinder 2. The circulating fan 205 is connected to the pipeline of the annular air injection frame 202 through part of the pipeline, and air is continuously injected into the micro-porous inner cylinder 1 203 near the one end of the material replacement connecting cylinder frame 3 to increase the pressure of the air in the micro-porous inner cylinder 1 203, so as to promote the air flow in the micro-porous inner cylinder 1 203 to flow towards the material inlet end cover 5.

[0029] The material inlet end cover 5 is provided with a plurality of water filtering plates 506 on the inner wall of the one end of the water-removing heat cylinder 2. The bottom of the water filtering plate 506 is provided with a water collecting groove 505. The material inlet end cover 5 is provided with a gas gathering ring 501 on the edge of the end face of the one end of the material inlet pipe valve 503. The air exchange valve 1 502 is symmetrically arranged between the inner walls on both sides of the gas gathering ring 501. The bottom of the material inlet end cover 5 is provided with a water filtering and discharging pipe 504 connected with the water collecting groove 505.

[0030] One of the air exchange valves 1 502 is connected with the circulating fan 205 through a pipe fitting, and is used for actively extracting the high-temperature water-containing hot air in the water-removing heat cylinder 2. The plurality of air exchange valves 1 502 are connected with the water filtering plates 506, and the filtered water is drained from the high-temperature water-containing hot air. The water droplets are collected in the water collecting groove 505. The water in the water collecting groove 505 is extruded and discharged under the influence of the air pressure in the water-removing heat cylinder 2, and the water is discharged through the water filtering and discharging pipe 504. The air exchange valve 1 502 connected with the circulating fan 205 guides the extracted hot air into the air filter and the water vapor separator, and then the hot air is returned to the heat conduction part and input into the annular air injection frame 202, so as to reduce the heat loss. The other air exchange valve 1 502 is connected with the external environment, and is used for actively discharging the air in the water-removing heat cylinder 2 when the water-removing heat cylinder 2 is cleaned.

[0031] The low-temperature rotating cylinder 4 is symmetrically arranged on both ends of the uniform speed rotating frame 402 which is in transmission connection with the micro-porous inner cylinder 2 401. The top of the low-temperature rotating cylinder 4 is provided with an exhaust plate 403 which penetrates the micro-porous inner cylinder 2 401.

[0032] The top of the material outlet end cover 6 is provided with a fixed frame 601 connected with the outer wall of the low-temperature rotating cylinder 4. The end face of the fixed frame 601 is provided with an adjusting cylinder 602 hinged with the material outlet end cover 6. The outer wall of the material outlet end cover 6 is provided with an air exchange valve 2 603 movably sleeved with the exhaust plate 403.

[0033] The surface of the exhaust plate 403 is provided with a plurality of groups of holes, and the end surface of the exhaust plate 403 is provided with a pipe connected with the air exchange valve two 603. Combined with the continuous low-temperature cold air provided inside the low-temperature rotating drum 4, the low-temperature inside the low-temperature rotating drum 4 is continuously boosted, and the hot air is gathered and floated close to the exhaust plate 403, so that the air in the top area of the low-temperature rotating drum 4 is concentrated and discharged. The fixed frame 601 is driven to open the discharge end cover 6 by the adjusting cylinder 602, and combined with the horizontal state adjustment of the water-removing heating drum 2 and the low-temperature rotating drum 4, it is helpful to concentrate and discharge the condensed copper chloride inside the low-temperature rotating drum 4.

[0034] Combined with examples one and two, during loading, the amount of the feeding pipe valve 503 is controlled, the base 1 and other components are adjusted to make the water-removing heating drum 2 tilt upward, and the loading is fast. During the heating and water-removing stage, the heater 204 cooperates with the circulating fan 205, the rotating frame 201 in the drum drives the microporous inner drum one 203 to rotate, so that the copper chloride is uniformly heated and evaporated, the circulating fan 205 transports dry hot air, and the air exchange valve one 502 realizes heat recycling. During unloading, the water-removing heating drum 2 is tilted to pour out the material, and the condenser 303 generates cold air during the condensation link, the uniform rotating frame 402 makes the copper chloride uniformly condense, and the exhaust plate 403 and the air exchange valve two 603 maintain the stability of the condensation environment. During discharging, the adjusting cylinder 602 opens the discharge end cover 6, which is convenient for concentrated discharge, and improves the processing efficiency and product quality.

[0035] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, and the application is not limited to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in detail in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A multi-stage condensation recovery device for preparing anhydrous copper chloride, comprising an adjustment base, characterized in that: Support columns are symmetrically arranged on the top of both sides of the adjustment base, and a plurality of groups of material-changing connecting drum racks are transmission-sleeved between the inner walls of the tops of the support columns. A dehydration heat drum is sleeved on one end of the material-changing connecting drum rack, and a low-temperature rotary drum is sleeved on the other end of the material-changing connecting drum rack. A partition gate valve is sleeved on the top of the material-changing connecting drum rack to separate the dehydration heat drum and the low-temperature rotary drum; A microporous inner cylinder 1 is sleeved in the center of the inner part of the dehydration heat cylinder, a heater is provided on the outer wall of the bottom of the dehydration heat cylinder, a feed end cover is sleeved on one end face of the dehydration heat cylinder, a feed pipe valve is provided on the top of one end of the feed end cover, a microporous inner cylinder 2 is sleeved in the center of the inner part of the low-temperature rotary cylinder, an air jet arc plate sleeved on the inner wall of the low-temperature rotary cylinder is provided below the microporous inner cylinder 2, and a discharge end cover is sleeved on the end face of the low-temperature rotary cylinder away from the material exchange connection cylinder frame.

2. The multi-stage condensation recovery device for preparing anhydrous copper chloride according to claim 1, wherein: The bottom of the adjustment base is provided with a force-removing base plate connected to the supporting column, and the tops of both ends of the force-removing base plate are centrally symmetrically provided with lifting and rotating cylinders, and the tops of the lifting and rotating cylinders are sleeved with telescopic supporting arms.

3. The multi-stage condensation recovery device for preparing anhydrous copper chloride according to claim 1, wherein: The two sides of the material exchange connecting drum frame are symmetrically recessed with rotating shaft seats that are sleeved with the supporting columns, and the bottom of the material exchange connecting drum frame is nested with a condenser.

4. The multi-stage condensation recovery device for preparing anhydrous copper chloride according to claim 1, characterized in that: An inner rotating frame is sleeved on the inner walls of both ends of the dehydration heat cylinder, and an annular jet frame sleeved on the inner wall of the inner rotating frame is provided at one end of the dehydration heat cylinder close to the material exchange connection cylinder frame. Several groups of metal brackets connected to the microporous inner cylinder are provided on the cross section of one end of the inner rotating frame close to the annular jet frame. A heat conducting member is provided on the top of the heater, which passes through the bottom of the dehydration heat cylinder and is close to the microporous inner cylinder, and a circulating fan is provided through the bottom shell of one side of the heater.

5. The multi-stage condensation recovery device for preparing anhydrous copper chloride according to claim 1, characterized in that: The top of the inner wall of one end of the feed end cover close to the dewatering heat cylinder is provided with several groups of water filter plates, and a water collecting trough is provided at the bottom of the water filter plates. An air gathering ring is provided at the edge of the end face of one end of the feed end cover close to the feed pipe valve, and an air exchange valve is symmetrically provided between the inner walls on both sides of the air gathering ring. A water filter drain pipe connected to the water collecting trough is provided on the outer wall of the bottom of the feed end cover.

6. The multi-stage condensation recovery device for preparing anhydrous copper chloride according to claim 1, characterized in that: The two ends of the low-temperature rotating drum are symmetrically provided with uniform speed rotating frames which are transmission-connected with the second microporous inner drum, and the top of the low-temperature rotating drum is provided with an exhaust plate which passes through the second microporous inner drum.

7. The multi-stage condensation recovery device for preparing anhydrous copper chloride according to claim 6, characterized in that: A fixing bracket connected to the outer wall of the low-temperature drum is provided on the top of the discharge end cover, an adjusting cylinder part hinged to the discharge end cover is provided on the end face of the fixing bracket, and a second air exchange valve movably connected to the exhaust plate is provided on the outer wall of the discharge end cover.

8. A multi-stage condensation recovery process for preparing anhydrous copper chloride, using a multi-stage condensation recovery device for preparing anhydrous copper chloride according to any one of claims 1 to 7, characterized in that: The following steps are involved: Feeding and loading: feeding through the feed pipe valve and adjusting the base to achieve fast loading; Equipment adjustment: The support column and the telescopic support arm coordinate to adjust the horizontal relationship between the dehydration heat drum and the low-temperature drum; Dehydration heat treatment: The heater cooperates with the circulating fan, and the rotating rack in the cylinder makes the copper chloride dehydrated evenly. The air exchange valve realizes the recycling of hot air and reduces the loss. Copper chloride transfer: The lifting rotary cylinder and other equipment cooperate to realize the transfer of copper chloride from the dehydration hot drum to the low-temperature rotating drum; Condensation treatment: The condenser is combined with a uniform rotating rack to achieve uniform condensation of copper chloride.

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