Solid-liquid separation device

Abstract

The utility model relates to a solid-liquid separation device. The solid-liquid separation device comprises a reaction tank, a filtering part, a stirring mechanism and an air blowing mechanism, the reaction tank is provided with a reaction cavity, a feed port, a liquid inlet, a liquid outlet and a discharge port; the filter part is arranged in the reaction cavity to divide the reaction cavity into an adsorption cavity and a liquid outlet cavity, the feed port and the liquid inlet are both communicated with the adsorption cavity, the liquid outlet is communicated with the liquid outlet cavity, the filter part is provided with a communicating port communicated with the adsorption cavity in a penetrating manner, and the communicating port is communicated with the discharge port to form a discharge channel; the air blowing mechanism is configured to be controllably communicated with or separated from the liquid outlet, and the air blowing mechanism can blow air to the filtering part when being communicated with the liquid outlet. By adopting the solid-liquid separation device, when the resin particles, the mother solution and the cleaning solution are mixed, the stirring mechanism can stir to ensure that the resin particles are fully contacted with the mother solution or the cleaning solution, so that the adsorption rate and the elution rate of metal ions are effectively improved, and the collection rate of the metal ions is further improved.

Description

Technical Field

[0001] The present application belongs to the technical field of separation equipment, and in particular, relates to a solid-liquid separation device. Background Art

[0002] At present, metals in waste liquid are usually recovered by resin adsorption and then washing. Specifically, the waste liquid is transported to a resin adsorption column, and a resin adsorption column of suitable material is selected according to the metal to be recovered. When the waste liquid flows through the resin adsorption column, the resin adsorption column can adsorb the metal ions in the waste liquid. After the adsorption is completed, the eluent is input into the resin adsorption column, and the eluent elutes the metal ions adsorbed by the resin adsorption column. Then, the eluent containing the metal ions can be collected. However, the adsorption rate and elution rate of this method are low, resulting in a low collection rate of metal ions from waste liquid. Utility Model Content

[0003] The technical problem to be solved by the present application is that the existing resin adsorption column has low adsorption rate and elution rate, and a solid-liquid separation device is provided which is convenient for collecting metal ions in waste liquid and has a high collection rate.

[0004] The technical solution proposed in this application is:

[0005] A solid-liquid separation device, comprising:

[0006] A reaction tank having a reaction chamber and a feed inlet, a liquid inlet, a liquid outlet and a material outlet;

[0007] A filter element is arranged in the reaction chamber to separate the reaction chamber into an adsorption chamber and a liquid outlet chamber, the feed inlet and the liquid inlet are both connected to the adsorption chamber, the liquid outlet is connected to the liquid outlet chamber, the filter element is penetrated by a communication port connected to the adsorption chamber, and the communication port is connected to the discharge port to form a discharge channel;

[0008] A stirring mechanism is disposed in the reaction tank and extends into the adsorption chamber;

[0009] The blowing mechanism is configured to be controllably connected to or blocked from the liquid outlet, and the blowing mechanism can blow air toward the filter element when connected to the liquid outlet.

[0010] Furthermore, it also includes a feeding hopper and a feeding valve. The feeding hopper is connected to the reaction tank and communicated with the feed port. The feeding valve is arranged on the feeding hopper.

[0011] Furthermore, it also includes a ventilation pipe, an air intake mechanism and an exhaust mechanism. The reaction tank also has a ventilation port connected to the adsorption chamber. The ventilation pipe is connected to the ventilation port. The air intake mechanism and the exhaust mechanism are both connected to the ventilation pipe.

[0012] Furthermore, the air intake mechanism includes an air source, an air intake pipe, an air intake valve and an air intake regulating valve, the air intake pipe is connected to the air source, one end of the air intake pipe away from the air source is connected to the ventilation pipe, the air intake valve and the air intake regulating valve are both arranged on the air intake pipe, the air intake valve is used to control the on and off of the air intake valve, and the air intake regulating valve is used to adjust the gas flow.

[0013] Furthermore, the exhaust mechanism includes an exhaust pipe, an exhaust valve and a pressure relief valve, the exhaust pipe is connected to the ventilation pipe, the exhaust valve is arranged on the exhaust pipe to control the on-off of the exhaust pipe, the pressure relief valve includes an air inlet end and an air outlet end, the air inlet end is connected to the ventilation pipe, the air outlet end is connected to the exhaust pipe, and the exhaust valve is located between the ventilation pipe and the air outlet end.

[0014] Furthermore, the blowing mechanism includes an air source, an air blowing pipe, an air blowing valve and an air blowing regulating valve. One end of the air blowing pipe is connected to the air source, and the other end is connected to the liquid outlet. The air blowing valve and the air blowing regulating valve are both arranged on the air blowing pipe, and the air blowing regulating valve is located on the side of the air blowing valve close to the air source. The air blowing valve is used to control the on and off of the air blowing pipe, and the air blowing regulating valve is used to adjust the gas flow rate.

[0015] Furthermore, it also includes a liquid outlet pipe and a liquid outlet valve, the liquid outlet pipe is connected to the liquid outlet, the liquid outlet valve is arranged on the liquid outlet pipe to control the on-off of the liquid outlet pipe, the end of the air blowing pipe away from the air source is connected to the liquid outlet pipe, and the connection position between the liquid outlet pipe and the air blowing pipe is located between the liquid outlet valve and the reaction tank.

[0016] Furthermore, it also includes a first connecting tube, a first liquid inlet mechanism and a second liquid inlet mechanism, the first connecting tube is connected to the liquid inlet, the first liquid inlet mechanism and the second liquid inlet mechanism are both connected to the first connecting tube, the first liquid inlet mechanism is used to input mother liquid into the reaction chamber, and the second liquid inlet mechanism is used to input cleaning liquid into the reaction chamber.

[0017] Furthermore, it also includes a second connecting tube and an annular liquid distribution tube located in the adsorption chamber, one end of the second connecting tube is connected to the liquid inlet, and the other end is connected to the annular liquid distribution tube, and the annular liquid distribution tube has a plurality of liquid distribution ports on one side facing the filter element.

[0018] Furthermore, the first liquid inlet mechanism includes a first liquid inlet pipe and a first liquid inlet regulating valve, a first flowmeter and a first liquid inlet valve arranged in sequence on the first liquid inlet pipe along the liquid inlet direction, the first liquid inlet regulating valve is used to adjust the flow rate of the input mother liquid, and the first liquid inlet valve is used to control the on-off of the first liquid inlet pipe.

[0019] Resin particles are added into the reaction chamber through the feed port, and then mother liquor is injected into the reaction chamber through the liquid inlet. The stirring mechanism stirs the mother liquor and resin particles so that the resin particles adsorb the metal ions in the mother liquor. Next, the mother liquor after adsorption is discharged through the liquid outlet, and the resin particles remain in the adsorption chamber under the action of the filter element. Then, cleaning liquid is injected into the reaction chamber through the liquid inlet, and the stirring mechanism stirs the cleaning liquid and resin particles so that the cleaning liquid fully elutes the metal ions adsorbed by the resin particles. After the elution is completed, the cleaning liquid with metal ions is discharged through the liquid outlet. After the cleaning liquid is discharged, the discharge port is opened to discharge the resin particles from the discharge port. At the same time, the back-blowing mechanism can blow air through the filter element to blow away the resin particles stuck on the filter element to avoid clogging of the filter element.

[0020] When the resin particles are mixed with the mother liquid and the cleaning liquid by using the solid-liquid separation device, the stirring mechanism can stir to ensure that the resin particles are fully in contact with the mother liquid or the cleaning liquid, thereby effectively improving the adsorption rate and elution rate of metal ions, and further improving the collection rate of metal ions. In addition, the setting of the blowing mechanism can effectively avoid clogging of the filter element and ensure that the mother liquid and the cleaning liquid are discharged smoothly and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification. They are used to explain the present application together with the embodiments of the present application and do not constitute a limitation of the present application.

[0022] Figure 1 A schematic diagram of the structure of a solid-liquid separation device provided in one embodiment of the present application;

[0023] Figure 2 for Figure 1 A schematic diagram of the top view of the annular liquid distribution pipe in the solid-liquid separation device shown;

[0024] Figure 3 for Figure 2 A schematic diagram of the structure of the annular liquid distribution pipe as viewed from above;

[0025] Figure 4 for Figure 1 A schematic diagram of the structure of the filter element in the solid-liquid separation device shown;

[0026] Figure 5 for Figure 1 Schematic diagram of the reaction tank after liquid filling in the solid-liquid separation device shown.

[0027] Description of reference numerals: 100, solid-liquid separation device; 110, reaction tank; 111, feed port; 112, liquid inlet; 113, liquid outlet; 114, discharge port; 115, adsorption chamber; 116, liquid outlet chamber; 117, vent; 118, cleaning port; 119, discharge valve; 120, filter element; 121, connecting port; 122, sieve plate; 130, stirring mechanism; 140, blowing mechanism; 141, blowing pipe; 142, blowing valve; 143, blowing regulating valve; 151, feeding hopper; 152, feeding valve; 161, vent; 162, air intake mechanism; 163, air intake pipe; 164, air intake valve; 165. Air intake regulating valve; 166. Exhaust mechanism; 167. Exhaust pipe; 168. Exhaust valve; 169. Pressure relief valve; 171. Liquid outlet pipe; 172. Liquid outlet valve; 181. First connecting pipe; 182. First liquid inlet mechanism; 183. Second liquid inlet mechanism; 184. Second connecting pipe; 185. Annular liquid distribution pipe; 1851. Liquid distribution port; 1821. First liquid inlet pipe; 1822. First liquid inlet regulating valve; 1823. First flow meter; 1824. First liquid inlet valve; 1831. Second liquid inlet pipe; 1832. Second liquid inlet regulating valve; 1833. Second flow meter; 1834. Second liquid inlet valve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In order to facilitate understanding of the technical solution of the present application, the adsorption rate and elution rate of the existing resin adsorption column are explained here: currently, metal ions are adsorbed only when the waste liquid flows through the resin adsorption column. During the flow process, the waste liquid is unable to completely contact the resin adsorption column, and the same is true for the eluent, which results in some metal ions in the waste liquid being unable to be adsorbed, and some metal ions in the resin adsorption column being unable to be washed out, resulting in low adsorption rate and elution rate, and low metal ion collection rate.

[0031] like Figure 1 As shown, a solid-liquid separation device 100 provided in one embodiment of the present application includes a reaction tank 110 , a filter element 120 and a stirring mechanism 130 .

[0032] The reaction tank 110 has a reaction chamber and a feed inlet 111, a liquid inlet 112, a liquid outlet 113 and a discharge port 114. The filter element 120 is disposed in the reaction chamber to separate the reaction chamber into an adsorption chamber 115 and a liquid discharge chamber 116. The feed inlet 111 and the liquid inlet 112 are connected to the adsorption chamber 115. The stirring mechanism 130 is disposed in the reaction tank 110 and extends into the adsorption chamber 115. The liquid outlet 113 is connected to the liquid discharge chamber 116. A connecting port 121 is provided through the filter element 120 to connect to the adsorption chamber 115 (see Figure 4 ), the communication port 121 is connected to the discharge port 114 to form a discharge channel.

[0033] Furthermore, the solid-liquid separation device further includes a blowing mechanism 140 , which is configured to be controllably connected to or disconnected from the liquid outlet 113 . The blowing mechanism 140 can blow air toward the filter element 120 when connected to the liquid outlet 113 .

[0034] Resin particles are added into the reaction chamber through the feed port 111, and then the mother liquid is injected into the reaction chamber through the liquid inlet 112. The stirring mechanism 130 stirs the mother liquid and the resin particles so that the resin particles adsorb the metal ions in the mother liquid. Next, the mother liquid after adsorption is discharged through the liquid outlet 113, and the resin particles remain in the adsorption chamber 115 under the action of the filter element 120. Then, the cleaning liquid is injected into the reaction chamber through the liquid inlet 112, and the stirring mechanism 130 stirs the cleaning liquid and the resin particles so that the cleaning liquid fully elutes the metal ions adsorbed by the resin particles. After the elution is completed, the cleaning liquid with metal ions is discharged through the liquid outlet 113. After the cleaning liquid is discharged, the discharge port 114 is opened to discharge the resin particles from the discharge port 114. At the same time, the back-blowing mechanism can blow air through the filter element 120 to blow away the resin particles stuck on the filter element 120 to avoid clogging of the filter element 120.

[0035] When the resin particles are mixed with the mother liquid and the cleaning liquid by using the solid-liquid separation device, the stirring mechanism 130 can stir to ensure that the resin particles are fully in contact with the mother liquid or the cleaning liquid, thereby effectively improving the adsorption rate and elution rate of metal ions, and further improving the collection rate of metal ions. In addition, the setting of the blowing mechanism 140 can effectively avoid the clogging of the filter element 120, and ensure that the mother liquid and the cleaning liquid are discharged smoothly and quickly.

[0036] It should be noted that the mother liquor can be waste liquid containing metal ions, or other solutions containing metal ions, which are not limited here. In addition, the specific components of the resin particles and the cleaning solution can be determined according to the metal ions that need to be adsorbed.

[0037] It is understandable that the size of the resin particles is larger than the aperture of the filter holes in the filter element 120, and the discharge channel and the liquid outlet chamber 116 are independent of each other, so the resin particles will not enter the liquid outlet chamber 116, while the mother liquid and the cleaning liquid can enter the liquid outlet chamber 116 and be discharged through the liquid outlet 113. In addition, the blowing mechanism 140 blows air toward the filter element 120 through the liquid outlet 113. Since the liquid outlet 113 is connected to the liquid outlet chamber 116, the blowing mechanism 140 can blow the stuck resin particles toward the adsorption chamber 115 when blowing air toward the filter element 120.

[0038] In one embodiment, the reaction tank 110 is further provided with a vent 117 connected to the adsorption chamber 115 . When the resin particles are discharged through the discharge port 114 , compressed gas can be blown into the vent 117 to blow the resin particles out from the discharge port 114 .

[0039] Furthermore, the reaction tank 110 is also provided with a cleaning port 118 connected to the adsorption chamber 115 . A door structure is provided at the cleaning port 118 . The door structure can open and close the cleaning port 118 , so as to clean the reaction chamber through the cleaning port 118 .

[0040] Specific to Figure 1 In the illustrated embodiment, the feed port 111, the vent port 117 and the liquid inlet 112 are all located at the top of the reaction tank 110, the cleaning port 118 is located on the side wall of the reaction tank 110, the discharge port 114 and the liquid outlet 113 are located at the bottom of the reaction tank 110, and the discharge port 114 is located in the middle position of the bottom of the reaction tank 110.

[0041] In one embodiment, the solid-liquid separation device further includes a discharge valve 119 , which is disposed at the discharge port 114 of the reaction tank 110 and is used to open or close the discharge port 114 .

[0042] In one embodiment, the solid-liquid separation device includes a feeding hopper 151 and a feeding valve 152. The feeding hopper 151 is connected to the reaction tank 110 and communicated with the feed port 111. The feeding valve 152 is provided on the feeding hopper 151 to control the opening and closing of the feeding hopper 151. In this way, the feeding hopper 151 can be opened first, and then the resin particles can be fed into the adsorption chamber 115 through the feeding hopper 151; or the resin particles can be stored in the feeding hopper 151 first, and then the feeding hopper 151 can be opened to release the resin particles into the adsorption chamber 115.

[0043] In one embodiment, the solid-liquid separation device further includes a vent pipe 161 and an air inlet mechanism 162. The vent pipe 161 is connected to the reaction tank 110 and communicates with the vent port 117. The air inlet mechanism 162 is connected to the vent pipe 161 so as to blow air into the adsorption chamber 115 through the vent pipe 161. When the resin particles need to be discharged from the discharge port 114, the air inlet mechanism 162 blows air into the adsorption chamber 115 so as to blow the resin particles out of the discharge port 114. It is understandable that the air inlet mechanism 162 and the air blowing mechanism 140 can be operated alternately, that is, most of the resin particles are first blown out of the discharge port 114 through the air inlet mechanism 162, and then the stuck resin particles are blown away from the filter element 120 through the air blowing mechanism 140, and then the remaining resin particles are blown out of the discharge port 114 again through the air inlet mechanism 162.

[0044] In one embodiment, the air intake mechanism 162 includes an air source, an air intake pipe 163, an air intake valve 164 and an air intake regulating valve 165. The air intake pipe 163 is connected to the air source, and one end of the air intake pipe 163 away from the air source is connected to the vent pipe 161. The air intake valve 164 and the air intake regulating valve 165 are both arranged on the air intake pipe 163 and arranged in sequence along the air intake direction. The air intake valve 164 is used to control the on-off of the air intake pipe 163, and the air intake regulating valve 165 is used to adjust the gas flow rate, thereby adjusting the gas input rate to ensure that the resin particles in the adsorption chamber 115 are blown out from the discharge port 114.

[0045] In one embodiment, the solid-liquid separation device further includes an exhaust mechanism 166 , which is connected to the vent pipe 161 and is used to exhaust the gas in the reaction chamber.

[0046] Furthermore, the exhaust mechanism 166 includes an exhaust pipe 167, an exhaust valve 168 and a pressure relief valve 169, the exhaust pipe 167 is connected to the vent pipe 161, and the exhaust valve 168 is arranged on the exhaust pipe 167 to control the on-off of the exhaust pipe 167. The pressure relief valve 169 includes an air inlet end and an air outlet end, the air inlet end is connected to the vent pipe 161, the air outlet end is connected to the exhaust pipe 167, and the exhaust valve 168 is located between the vent pipe 161 and the air outlet end.

[0047] When blowing gas into the reaction chamber through the blowing mechanism 140, other valves are closed, and the exhaust valve 168 is opened to discharge the gas blown in, so as to avoid excessive pressure in the reaction chamber, which affects the gas blowing of the blowing mechanism 140. In addition, when the pressure in the reaction chamber is greater than the preset pressure value, the pressure relief valve 169 is opened to discharge the gas for pressure relief, thereby improving the safety of the solid-liquid separation device.

[0048] It should be explained that excessive pressure in the reaction chamber may be caused by the air intake mechanism 162 blowing air into the reaction chamber, or it may be caused by the input of resin particles, mother liquor or cleaning liquid into the reaction chamber. There are many reasons for this, which will not be elaborated here. It is sufficient to ensure that the pressure in the reaction chamber is greater than the preset pressure value before depressurization.

[0049] In one embodiment, the blowing mechanism 140 includes an air source, an air blowing pipe 141, an air blowing valve 142 and an air blowing regulating valve 143. One end of the air blowing pipe 141 is connected to the air source, and the other end is connected to the liquid outlet 113. The air blowing valve 142 and the air blowing regulating valve 143 are both arranged on the air blowing pipe 141, and the air blowing regulating valve 143 and the air blowing valve 142 are arranged in sequence along the blowing direction, that is, the air blowing regulating valve 143 is located on the side of the air blowing valve 142 close to the air source. The air blowing valve 142 is used to control the on and off of the air blowing pipe 141, and the air blowing regulating valve 143 is used to adjust the gas flow rate, thereby adjusting the blowing force to ensure that the stuck resin particles are blown away from the filter element 120.

[0050] It should be noted that the air source in the blowing mechanism 140 and the air source in the air intake mechanism 162 have the same function, both of which are used to provide compressed gas, so the air source in the blowing mechanism 140 and the air intake mechanism 162 can be the same.

[0051] Furthermore, the solid-liquid separation device also includes a liquid outlet pipe 171 and a liquid outlet valve 172. The liquid outlet pipe 171 is connected to the reaction tank 110 and communicated with the liquid outlet port 113. The liquid outlet valve 172 is arranged on the liquid outlet pipe 171 to control the on-off of the liquid outlet pipe 171. The end of the blowing pipe 141 away from the gas source is connected to the liquid outlet pipe 171 to communicate with the liquid outlet port 113, and the connection position of the liquid outlet pipe 171 and the blowing pipe 141 is located between the liquid outlet valve 172 and the reaction tank 110 to avoid the gas being discharged from the end of the liquid outlet pipe 171 away from the reaction tank 110 during blowing, thereby ensuring the blowing force and ensuring that the stuck resin particles are blown away.

[0052] In one embodiment, the solid-liquid separation device also includes a first connecting pipe 181 and a first liquid inlet mechanism 182 and a second liquid inlet mechanism 183. The first connecting pipe 181 is connected to the reaction tank 110 and is connected to the liquid inlet 112. The first liquid inlet mechanism 182 and the second liquid inlet mechanism 183 are both connected to the first connecting pipe 181. The first liquid inlet mechanism 182 is used to input mother liquid into the reaction chamber, and the second liquid inlet mechanism 183 is used to input cleaning liquid into the reaction chamber.

[0053] Please also participate Figure 2 and Figure 3 Furthermore, the solid-liquid separation device also includes a second connecting pipe 184 and an annular liquid distribution pipe 185 located in the adsorption chamber 115. One end of the second connecting pipe 184 is connected to the liquid inlet 112, and the other end is connected to the annular liquid distribution pipe 185. The annular liquid distribution pipe 185 is provided with a plurality of liquid distribution ports 1851 on one side facing the filter element 120.

[0054] Specific to Figure 3 In the illustrated embodiment, each liquid distribution port 1851 extends along the circumference of the annular liquid distribution tube 185 .

[0055] It can be confirmed that the annular liquid distributing pipe 185 is located above the filter element 120, so a plurality of liquid distributing ports 1851 are provided at the bottom of the annular liquid distributing pipe 185, so as to achieve uniform input of the mother liquid or the cleaning liquid into the reaction chamber. Of course, in other embodiments, a plurality of nozzles or other methods can also be used to increase the liquid distributing area of ​​the liquid distributing pipe, so that the mother liquid and the cleaning liquid are uniformly sprayed into the reaction chamber, so that the mother liquid or the cleaning liquid is quickly mixed with the resin particles, and a large amount of the mother liquid or the cleaning liquid is prevented from being concentrated and rushed into, resulting in a violent reaction in the reaction tank 110.

[0056] In one embodiment, the first liquid inlet mechanism 182 includes a first liquid inlet pipe 1821 and a first liquid inlet regulating valve 1822, a first flowmeter 1823 and a first liquid inlet valve 1824 which are sequentially arranged on the first liquid inlet pipe 1821 along the liquid inlet direction. The first liquid inlet regulating valve 1822 is used to adjust the flow rate of the input mother liquid, the first flowmeter 1823 is used to calculate the flow value of the mother liquid input into the reaction chamber by the first liquid inlet pipe 1821, and the first liquid inlet valve 1824 is used to control the on-off of the first liquid inlet pipe 1821.

[0057] Further, the second liquid inlet mechanism 183 includes a second liquid inlet pipe 1831 and a second liquid inlet regulating valve 1832, a second flowmeter 1833 and a second liquid inlet valve 1834 which are sequentially arranged on the second liquid inlet pipe 1831 along the liquid inlet direction, the second liquid inlet regulating valve 1832 is used to regulate the flow rate of the input mother liquid, the second flowmeter 1833 is used to calculate the flow value of the mother liquid input into the reaction chamber from the second liquid inlet pipe 1831, and the second liquid inlet valve 1834 is used to control the on-off of the second liquid inlet pipe 1831. In this way, the liquid inlet regulating valve can regulate the flow rate of the liquid inlet according to the detection result of the flowmeter.

[0058] In one embodiment, the stirring mechanism 130 includes a stirring drive and a stirring rod. The stirring drive is disposed in the reaction tank 110 and is connected to the stirring rod. The stirring rod extends into the adsorption chamber 115 and is used to stir the mother liquor and resin particles or the cleaning liquid and resin particles, so that the resin particles and the mother liquor or the cleaning liquid are fully mixed, thereby improving the adsorption rate and the elution rate.

[0059] See also Figure 4 In one embodiment, the filter element 120 includes a plurality of sieve plates 122, each of which has one end connected to the inner wall of the reaction chamber and the other end connected to the discharge port 114 of the bottom wall of the reaction chamber. The plurality of sieve plates 122 are arranged in sequence along the circumference of the discharge port 114, and two adjacent sieve plates 122 are fixedly connected to enclose a funnel-shaped filter element 120. The bottom of the filter element 120 has a connecting port 121 connected to the discharge port 114.

[0060] Specific to Figure 4 In the illustrated embodiment, each sieve plate 122 is fan-shaped with one corner missing, and the arc at one end of the sieve plate 122 matches the discharge port 114, while the arc at the other end matches the inner wall of the reaction chamber, so that after the filter element 120 is enclosed to form, the reaction chamber is divided into an adsorption chamber 115 and a liquid outlet chamber 116, and a connecting port 121 connected to the liquid outlet 113 is also formed.

[0061] In one embodiment, the solid-liquid separation device further comprises a control mechanism, which is electrically connected to electrical components in the above mechanism, such as valves, to achieve automatic operation of the solid-liquid separation device.

[0062] In order to facilitate understanding of the technical solution of this application, Figure 1 and Figure 5 The solid-liquid separation device in the above embodiment is described as follows:

[0063] Initially, all valves are in a closed state, and the regulating valve is also preliminarily adjusted. Open the feed valve 152 and the exhaust valve 168 to release the resin particles into the adsorption chamber 115, then close the feed valve 152, open the first liquid inlet valve 1824, input the mother liquid into the reaction chamber, and then open the stirring mechanism 130 to stir the mother liquid and the resin particles. Open the liquid outlet valve 172, and during the stirring process, input the mother liquid while discharging the adsorbed mother liquid to ensure that the resin particles are always in the mother liquid rich in metal ions. After the resin particles are fully adsorbed with metal ions, close the first liquid inlet valve 1824, stop the input of the mother liquid, discharge the mother liquid through the liquid outlet 113, and close the stirring mechanism 130.

[0064] Close the liquid outlet valve 172, open the second liquid inlet valve 1834, input the cleaning liquid into the reaction chamber, and then open the stirring mechanism 130 to make the cleaning liquid and the resin particles fully contact and elute the metal ions adsorbed by the resin particles. Next, open the liquid outlet valve 172 to discharge the cleaning liquid containing metal ions through the liquid outlet 113. After the cleaning liquid is discharged, close the liquid outlet valve 172, open the discharge valve 119 and the air inlet valve 164, input compressed gas into the reaction chamber, and blow the resin particles out from the discharge port 114.

[0065] It should be noted that if Figure 5 As shown, after the mother liquor and the cleaning liquid are input, the mother liquor or the cleaning liquid needs to maintain a liquid level of about 2 / 3 of the height in the reaction chamber, so as to ensure that the resin particles are always suspended and stirred in the mother liquor or the cleaning liquid, and to ensure sufficient contact between the resin particles and the mother liquor or the cleaning liquid.

[0066] In addition, the blowing mechanism 140 is opened periodically, and when it is opened, mother liquid and cleaning liquid will not be input into the reaction chamber.

[0067] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device, characterized in that: include: A reaction tank having a reaction chamber and a feed inlet, a liquid inlet, a liquid outlet and a material outlet; A filter element is arranged in the reaction chamber to separate the reaction chamber into an adsorption chamber and a liquid outlet chamber, the feed inlet and the liquid inlet are both connected to the adsorption chamber, the liquid outlet is connected to the liquid outlet chamber, the filter element is penetrated by a communication port connected to the adsorption chamber, and the communication port is connected to the discharge port to form a discharge channel; A stirring mechanism is disposed in the reaction tank and extends into the adsorption chamber; The blowing mechanism is configured to be controllably connected to or blocked from the liquid outlet, and the blowing mechanism can blow air toward the filter element when connected to the liquid outlet.

2. The solid-liquid separation device according to claim 1, characterized in that: It also includes a feeding hopper and a feeding valve. The feeding hopper is connected to the reaction tank and communicated with the feed port. The feeding valve is arranged on the feeding hopper.

3. The solid-liquid separation device according to claim 1, characterized in that: It also includes a ventilation pipe, an air intake mechanism and an exhaust mechanism. The reaction tank also has a ventilation port connected to the adsorption chamber. The ventilation pipe is connected to the ventilation port. The air intake mechanism and the exhaust mechanism are both connected to the ventilation pipe.

4. The solid-liquid separation device according to claim 3, characterized in that: The air intake mechanism includes an air source, an air intake pipe, an air intake valve and an air intake regulating valve. The air intake pipe is connected to the air source, and one end of the air intake pipe away from the air source is connected to the ventilation pipe. The air intake valve and the air intake regulating valve are both arranged on the air intake pipe. The air intake valve is used to control the on and off of the air intake valve, and the air intake regulating valve is used to adjust the gas flow.

5. The solid-liquid separation device according to claim 3, characterized in that: The exhaust mechanism includes an exhaust pipe, an exhaust valve and a pressure relief valve, the exhaust pipe is connected to the vent pipe, the exhaust valve is arranged on the exhaust pipe to control the on-off of the exhaust pipe, the pressure relief valve includes an air inlet end and an air outlet end, the air inlet end is connected to the vent pipe, the air outlet end is connected to the exhaust pipe, and the exhaust valve is located between the vent pipe and the air outlet end.

6. The solid-liquid separation device according to claim 1, characterized in that: The blowing mechanism includes an air source, an air blowing pipe, an air blowing valve and an air blowing regulating valve. One end of the air blowing pipe is connected to the air source, and the other end is connected to the liquid outlet. The air blowing valve and the air blowing regulating valve are both arranged on the air blowing pipe, and the air blowing regulating valve is located on the side of the air blowing valve close to the air source. The air blowing valve is used to control the on and off of the air blowing pipe, and the air blowing regulating valve is used to adjust the gas flow.

7. The solid-liquid separation device according to claim 6, characterized in that: It also includes a liquid outlet pipe and a liquid outlet valve, wherein the liquid outlet pipe is connected to the liquid outlet port, and the liquid outlet valve is arranged on the liquid outlet pipe to control the on-off of the liquid outlet pipe, and the end of the air blowing pipe away from the air source is connected to the liquid outlet pipe, and the connection position between the liquid outlet pipe and the air blowing pipe is located between the liquid outlet valve and the reaction tank.

8. The solid-liquid separation device according to claim 1, characterized in that: It also includes a first connecting pipe, a first liquid inlet mechanism and a second liquid inlet mechanism, the first connecting pipe is connected to the liquid inlet, the first liquid inlet mechanism and the second liquid inlet mechanism are both connected to the first connecting pipe, the first liquid inlet mechanism is used to input mother liquid into the reaction chamber, and the second liquid inlet mechanism is used to input cleaning liquid into the reaction chamber.

9. The solid-liquid separation device according to claim 8, characterized in that: It also includes a second connecting tube and an annular liquid distribution tube located in the adsorption chamber, one end of the second connecting tube is connected to the liquid inlet, and the other end is connected to the annular liquid distribution tube, and the annular liquid distribution tube has a plurality of liquid distribution ports on one side facing the filter element.

10. The solid-liquid separation device according to claim 8, characterized in that: The first liquid inlet mechanism includes a first liquid inlet pipe and a first liquid inlet regulating valve, a first flowmeter and a first liquid inlet valve arranged in sequence on the first liquid inlet pipe along the liquid inlet direction. The first liquid inlet regulating valve is used to adjust the flow rate of the input mother liquid, and the first liquid inlet valve is used to control the on-off of the first liquid inlet pipe.

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