Volatile organic phase condensation recovery device and cyclic extraction equipment

Abstract

The utility model provides a volatile organic phase condensation recovery device and cyclic extraction equipment. The volatile organic phase condensation and recovery device comprises a refrigeration assembly, a separation and recovery assembly and a gas passing and liquid collecting pipe, the refrigeration assembly is used for cooling a refrigerant; the separation and recovery assembly is used for separating and recovering an organic phase; the gas passing and liquid collecting pipe is used for being communicated with a tail gas guide pipe, and a pipe cavity of the gas passing and liquid collecting pipe is sequentially divided into a condensation cavity and a liquid collecting cavity in the tail gas flowing direction; a plurality of adsorption refrigeration blocks are arranged in the condensation cavity, and each adsorption refrigeration block is connected with the refrigeration assembly in an abutting mode through a refrigerant circulating pipe. The cavity wall of the liquid collecting cavity is sunken downwards from the two ends to the middle to form a liquid accumulation part, and the bottom of the liquid accumulation part communicates with the separation and recovery assembly. According to the volatile organic phase condensation recovery device, water vapor and a volatile organic phase can be stripped from tail gas in a targeted mode, other parts in the tail gas continue to be discharged through the tail gas guide pipe, and the purification efficiency of the organic phase can be effectively improved while the whole tail gas is prevented from being treated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of tail gas recovery of an extraction system, and in particular to a volatile organic phase condensation recovery device and a circulating extraction device. Background Art

[0002] With the widespread use of new energy batteries, the amount of waste batteries has also increased explosively. In order to prevent waste batteries from polluting the environment, waste batteries are usually crushed, extracted, and separated to recover metal elements such as cobalt, nickel, and manganese in the batteries, ultimately reducing damage to the environment.

[0003] At present, most factories use wet extraction systems to extract metal elements from batteries. However, because the wet extraction method will generate a lot of heat during the saponification and other reaction processes, and the extractant is an organic phase substance, it is easy to volatilize due to heat and be discharged with the exhaust gas. This makes the wet extraction process not only consume a large amount of extractant, but also easily cause environmental pollution. Some manufacturers have made further research and development in this regard.

[0004] For example, Chinese patent document CN113457358A discloses a fully automatic recovery device for organic volatiles, comprising an oil and gas collecting pipe, the oil and gas collecting pipe is connected to a booster fan, the booster fan is connected to a condenser, the condenser condenses the oil and gas and cools it into condensed gas and condensed liquid, the condenser is connected to a gas-liquid separator; the gas-liquid separator is connected to an oil collecting tank, the gas-liquid separator is connected to an adsorption tank, and the adsorption tank is connected to an absorption tower; utilizing the different saturated vapor pressures of organic volatiles at different temperatures and pressures, the temperature is lowered by the condenser and the pressure is increased by the booster fan, the organic volatiles are condensed into condensed liquid and collected in the oil collecting tank, the condensed gas is separated by the gas-liquid separator, the condensed gas enters the adsorption tank for adsorption and desorption treatment, the condensed gas after adsorption treatment enters the absorption tower or is discharged, and the desorbed condensed gas enters the condenser for circulating condensation treatment.

[0005] However, the design of the fully automatic recovery device for the above-mentioned volatile organic compounds has the following problems:

[0006] Although the fully automatic recovery device for organic volatiles can reduce the temperature through the condenser and increase the pressure through the booster fan to condense the organic volatiles and collect them in the oil collecting tank, the fully automatic recovery device for organic volatiles processes the whole tail gas, and other parts in the tail gas will interfere with the separation and recovery of the extractant, and other separation processes are required to separate the extractant in a targeted manner, making the purification process of the extractant complicated and slow. At the same time, the fully automatic recovery device for organic volatiles is a complete machine with a large size, which requires a large space for use, is difficult to transport or arrange, and has poor installation flexibility. Utility Model Content

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a volatile organic phase condensation recovery device and a circulating extraction device with high organic phase separation efficiency and flexible and convenient installation.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A volatile organic phase condensation recovery device, comprising:

[0010] A refrigeration component, wherein the refrigeration component is used to cool the refrigerant;

[0011] A separation and recovery component, wherein the separation and recovery component is used to separate and recover the organic phase;

[0012] The volatile organic phase condensation recovery device also includes a gas collection pipe;

[0013] The gas-passing liquid collecting pipe is used to be connected with the exhaust gas duct, and the tube cavity of the gas-passing liquid collecting pipe is divided into a condensation chamber and a liquid collecting chamber in sequence along the flow direction of the exhaust gas; a plurality of adsorption refrigeration blocks are arranged in the condensation chamber, and each of the adsorption refrigeration blocks is respectively connected to the refrigeration component through a refrigerant circulation pipe; the cavity wall of the liquid collecting chamber is recessed downward from both ends to the middle to form a liquid accumulation portion, and the bottom of the liquid accumulation portion is connected to the separation and recovery component.

[0014] In one of the embodiments, the cavity wall of the liquid collecting cavity is respectively formed with a first liquid guiding slope portion and a second liquid guiding slope portion at both ends of the liquid accumulation portion; the first liquid guiding slope portion is connected to the condensation cavity and slopes downward toward the liquid accumulation portion; the second liquid guiding slope portion is connected to the exhaust gas duct and slopes downward toward the liquid accumulation portion.

[0015] In one embodiment, the slope of the first liquid guiding slope is 2%-3%; and / or,

[0016] The slope of the second liquid guiding slope is 2%-3%.

[0017] In one of the embodiments, a blower is further provided in the tube cavity of the gas-transmitting liquid collecting pipe. The blower is arranged at one end of the liquid collecting cavity away from the condensing cavity, and the air inlet of the blower is arranged toward the liquid accumulation part.

[0018] In one of the embodiments, a plurality of the adsorption refrigeration blocks are divided into a plurality of refrigeration rows along the flow direction of the exhaust gas, and the adsorption refrigeration blocks in the same refrigeration row are arranged at intervals; the corresponding adsorption refrigeration blocks in two adjacent refrigeration rows are staggered to form air-through condensation gaps.

[0019] In one of the embodiments, the bottom of the liquid accumulation portion is connected to the separation and recovery component through a condensate recovery pipe, and the tube cavity of the condensate recovery pipe close to one end of the liquid accumulation portion is bent to form a liquid storage bend.

[0020] In one embodiment, the adsorption refrigeration block includes an activated carbon outer layer and a heat exchange inner layer, the activated carbon outer layer is sleeved outside the heat exchange inner layer, and the refrigerant circulation pipe penetrates and is abuttedly connected to the heat exchange inner layer.

[0021] In one of the embodiments, the refrigerant circulation pipe is divided into a liquid delivery section, a conduction heat exchange section and an exhaust section in sequence along the flow direction of the refrigerant. The conduction heat exchange section is embedded in the heat exchange inner layer in a bent shape, the liquid delivery section is connected to the liquid refrigerant discharge port of the refrigeration component, and the exhaust section is connected to the gaseous refrigerant return port of the refrigeration component.

[0022] In one embodiment, the separation and recovery component includes a condensate dehydrator and an organic phase clarification chamber, the liquid inlet end of the condensate dehydrator is connected to the bottom of the liquid accumulation part, the organic phase discharge end of the condensate dehydrator is connected to the organic phase inlet of the organic phase clarification chamber, the drainage end of the condensate dehydrator is used to be connected to a drainage ditch, and the organic phase outlet of the organic phase clarification chamber is used to be connected to the extraction system.

[0023] A circulating extraction device, comprising an extraction system and a volatile organic phase condensation recovery device according to any one of the above embodiments;

[0024] The extraction system comprises an extraction mixing chamber and an extraction clarifying chamber which are connected to each other. The tail gas conduit of the extraction clarifying chamber is connected to the tail gas treatment system through the gas collecting pipe, and the organic phase outlet of the organic phase clarifying chamber is connected to the extraction mixing chamber.

[0025] Compared with the prior art, the present invention has at least the following advantages:

[0026] 1) The exhaust gas in the exhaust gas conduit is connected and arranged on the exhaust gas conduit, so that the exhaust gas in the exhaust gas conduit passes through the condensation chamber and the liquid collection chamber in turn. Because a number of adsorption refrigeration blocks are arranged in the condensation chamber, the adsorption refrigeration blocks can specifically adsorb the water vapor and the volatilized organic phase in the exhaust gas to prolong the contact time between the water vapor and the volatilized organic phase and the adsorption refrigeration blocks, so that the water vapor and the volatilized organic phase condense and gather to form condensate, and the condensate is blown to the liquid accumulation part by the exhaust gas. Since the liquid accumulation part is formed by the two ends of the cavity wall of the liquid collection chamber being concave downward to the middle, the condensate will be able to overcome the blowing force of the exhaust gas under the action of gravity and gather at the bottom of the liquid accumulation part, and the bottom of the liquid accumulation part is connected to the separation and recovery component, so that the condensate will eventually flow to the separation and recovery component, and the separation and recovery component can effectively separate and recover the organic phase in the condensate.

[0027] 2) Compared with the fully automatic recovery device of organic volatiles in the prior art, the volatile organic phase condensation recovery device disclosed in the present invention can specifically strip water vapor and volatilized organic phase from the exhaust gas, while the other parts of the exhaust gas continue to be discharged through the exhaust gas duct, which not only avoids the additional process of treating the entire exhaust gas, but also improves the purification efficiency of the organic phase.

[0028] 3) The volatile organic phase condensation recovery device in the present disclosure adopts a multi-unit layout, which does not need to occupy a whole large usable space. The various parts of the volatile organic phase condensation recovery device can be separately arranged in multiple separate small usable spaces, making the installation more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the installation state of the volatile organic phase condensation recovery device according to one embodiment of the present disclosure;

[0031] Figure 2 for Figure 1 A schematic diagram of the use status of the gas collecting pipe of the volatile organic phase condensation recovery device shown;

[0032] Figure 3 for Figure 1 The schematic diagram of the connection structure of the refrigeration component and the adsorption refrigeration block of the volatile organic phase condensation recovery device shown;

[0033] Figure 4 It is a schematic structural diagram of a circulating extraction device according to another embodiment of the present disclosure.

[0034] Figure numerals: 10, circulating extraction equipment; 100, volatile organic phase condensation recovery device; 110, refrigeration component; 1110, condenser; 1111, refrigerant inlet; 1112, refrigerant outlet; 1120, branch pipe; 1121, liquid refrigerant inlet; 1122, gaseous refrigerant outlet; 1123, liquid refrigerant outlet; 1124, gaseous refrigerant reflux port; 1130, refrigerant circulation pipe; 1131, liquid delivery section; 1132, heat transfer section; 1133, exhaust section; 120, separation and recovery component; 1210, condensate dehydrator; 1211, liquid inlet end; 1212, organic phase outlet end; 1213, drainage end; 1220, organic phase clarification chamber; 1221, organic phase inlet; 1222, organic phase outlet; 130, gas collection pipe; 1310, condensation chamber; 1311, refrigeration row; 1312, adsorption refrigeration block; 131a, activated carbon outer layer; 131b, heat exchange inner layer; 131c, gas condensation gap; 1320, liquid collection chamber; 1321, first liquid guide slope; 1322, liquid accumulation part; 1323, second liquid guide slope; 1324, condensate recovery pipe; 132a, liquid storage bend; 1330, blower; 200, extraction system; 210, extraction mixing chamber; 220, extraction clarification chamber; 2210, exhaust duct. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0039] like Figure 1 As shown, a volatile organic phase condensation and recovery device 100 of an embodiment includes a refrigeration component 110, a separation and recovery component 120 and a gas collection pipe 130; the refrigeration component 110 is used to cool the refrigerant; the separation and recovery component 120 is used to separate and recover the organic phase; the gas collection pipe 130 is used to be connected with the exhaust gas duct 2210, and the tube cavity of the gas collection pipe 130 is divided into a condensation chamber 1310 and a liquid collection chamber 1320 in sequence along the flow direction A of the exhaust gas; a plurality of adsorption refrigeration blocks 1312 are arranged in the condensation chamber 1310, and each adsorption refrigeration block 1312 is respectively connected to the refrigeration component 110 through a refrigerant circulation pipe 1130; the cavity wall of the liquid collection chamber 1320 is recessed downward from both ends to the middle to form a liquid accumulation portion 1322, and the bottom of the liquid accumulation portion 1322 is connected to the separation and recovery component 120.

[0040] It can be understood that by connecting the gas-liquid collecting pipe 130 to the exhaust gas conduit 2210 , the exhaust gas in the exhaust gas conduit 2210 passes through the condensation chamber 1310 and the liquid collecting chamber 1320 in sequence. Because a plurality of adsorption refrigeration blocks 1312 are arranged in the condensation chamber 1310, the adsorption refrigeration blocks 1312 can specifically adsorb water vapor and volatilized organic phase in the exhaust gas to prolong the contact time between the water vapor and the volatilized organic phase and the adsorption refrigeration blocks 1312, thereby causing the water vapor and the volatilized organic phase to condense and gather to form condensate, which is blown to the liquid accumulation portion 1322 by the exhaust gas. Since the liquid accumulation portion 1322 is formed by the two ends of the cavity wall of the liquid collection chamber 1320 being concave downward toward the middle, the condensate will be able to overcome the blowing force of the exhaust gas under the action of gravity and gather at the bottom of the liquid accumulation portion 1322, and the bottom of the liquid accumulation portion 1322 is connected to the separation and recovery component 120, so that the condensate will eventually flow to the separation and recovery component 120, and the separation and recovery component 120 can effectively separate and recover the organic phase in the condensate.

[0041] It can be understood that compared with the fully automatic recovery device for organic volatiles in the prior art, the volatile organic phase condensation recovery device 100 in this embodiment can specifically strip water vapor and volatilized organic phase from the exhaust gas, while the other parts of the exhaust gas continue to be discharged through the exhaust gas duct 2210, which not only avoids the additional process of treating the entire exhaust gas, but also improves the purification efficiency of the organic phase.

[0042] It can be understood that the volatile organic phase condensation recovery device 100 in this embodiment adopts a multi-connected layout and does not need to occupy a whole large usable space. The various parts of the volatile organic phase condensation recovery device 100 can be separately arranged in multiple separate small usable spaces, making the installation more flexible.

[0043] like Figure 2 As shown, in one embodiment, the cavity wall of the liquid collecting cavity 1320 is respectively formed with a first liquid guiding slope portion 1321 and a second liquid guiding slope portion 1323 at both ends of the liquid accumulation portion 1322; the first liquid guiding slope portion 1321 is connected to the condensation cavity 1310 and slopes downward toward the liquid accumulation portion 1322; the second liquid guiding slope portion 1323 is connected to the exhaust gas duct 2210 and slopes downward toward the liquid accumulation portion 1322. It can be understood that because the first liquid guiding slope 1321 is connected to the condensation chamber 1310, and the first liquid guiding slope 1321 is inclined downward from the condensation chamber 1310 to the liquid accumulation portion 1322, the condensate formed by condensation in the condensation chamber 1310 flows more smoothly along the first liquid guiding slope 1321 to the liquid accumulation portion 1322 under the combined action of gravity and the blowing force of the exhaust gas, and the liquid accumulation portion 1322 is connected to the exhaust gas duct 2210 through the second liquid guiding slope 1323, and the second liquid guiding slope 1323 is inclined upward from the liquid accumulation portion 1322 to the exhaust gas duct 2210, so that the first liquid guiding slope 1321, the liquid accumulation portion 1322 and the second liquid guiding slope 1323 form a V-shaped liquid storage structure. The condensate can not only be more concentrated at the bottom of the liquid accumulation portion 1322 due to the constraint of the V-shaped liquid storage structure, but also is more difficult to be discharged through the liquid collecting chamber 1320.

[0044] Furthermore, the slope of the first liquid guiding slope 1321 is 2%-3%, which can not only prevent the first liquid guiding slope 1321 from being excessively tilted to hinder the flow of exhaust gas, but also prevent the first liquid guiding slope 1321 from being too flat to slow down the convergence efficiency of the condensate. Similarly, the slope of the second liquid guiding slope 1323 is 2%-3%, which can not only prevent the second liquid guiding slope 1323 from being excessively tilted to hinder the flow of exhaust gas, but also prevent the first liquid guiding slope 1321 from being too flat to reduce the convergence effect of the liquid collecting chamber 1320 on the condensate. Of course, the slope of the first liquid guiding slope 1321 or the slope of the second liquid guiding slope 1323 can be 2%, 2.5% or 3%, which is not limited here, and those skilled in the art can also make other choices as appropriate.

[0045] Combination Figure 2As shown, in one embodiment, a blower 1330 is further provided in the tube cavity of the gas collecting pipe 130, and the blower 1330 is arranged at one end of the collecting chamber 1320 away from the condensing chamber 1310, and the air inlet of the blower 1330 is arranged toward the liquid accumulation part 1322. It can be understood that because the blower 1330 is arranged at one end of the collecting chamber 1320 away from the condensing chamber 1310, and the air inlet of the blower 1330 is arranged toward the liquid accumulation part 1322, the exhaust gas can flow through the condensing chamber 1310 and the liquid accumulation part 1322 more quickly through the suction of the blower 1330, which can not only compensate for the local pressure loss of the exhaust gas caused by the adsorption refrigeration block 1312 and the loss of the exhaust gas along the way caused by the gas collecting pipe 130, but also the user can control the overall speed of the exhaust gas passing through the gas collecting pipe 130 by adjusting the rotation of the blower 1330, and finally improve the condensation recovery efficiency of the condensate.

[0046] Combination Figure 2 As shown, in one embodiment, a plurality of adsorption refrigeration blocks 1312 are divided into a plurality of refrigeration rows 1311 along the flow direction of the tail gas, and the adsorption refrigeration blocks 1312 in the same refrigeration row 1311 are arranged at intervals, and the corresponding adsorption refrigeration blocks 1312 in two adjacent refrigeration rows 1311 are arranged at offsets, and a gas-passing condensation gap 131c is formed. It can be understood that because each refrigeration row 1311 is arranged along the flow direction A of the tail gas, a multi-stage adsorption condensation structure for the tail gas is formed, so that the tail gas can be more fully contacted with the adsorption refrigeration block 1312, thereby improving the recovery rate of the organic phase in the tail gas. At the same time, because the adsorption refrigeration blocks 1312 in the same refrigeration row 1311 are spaced apart and the corresponding adsorption refrigeration blocks 1312 in two adjacent refrigeration rows 1311 are staggered, a gas condensation gap 131c is formed between each adsorption refrigeration block 1312. When the exhaust gas passes through the condensation chamber 1310, the other parts of the exhaust gas can still flow smoothly through the gas condensation gap 131c. Ultimately, the volatile organic phase condensation recovery device 100 in this embodiment can improve the condensation effect while taking into account the exhaust gas passing efficiency.

[0047] Combination Figure 1 and Figure 2As shown, in one embodiment, the bottom of the liquid accumulation part 1322 is connected to the separation and recovery component 120 through the condensate recovery pipe 1324, and the tube cavity of the condensate recovery pipe 1324 near one end of the liquid accumulation part 1322 is bent to form a liquid storage bend 132a. It can be understood that because the bottom of the liquid accumulation part 1322 is connected to the separation and recovery component 120 through the condensate recovery pipe 1324, by forming the liquid storage bend 132a at the tube cavity of the condensate recovery pipe 1324 near one end of the liquid accumulation part 1322, when the condensate flows to the separation and recovery component 120 through the condensate recovery pipe 1324, part of the condensate will be filled in the liquid storage bend 132a, which has a liquid sealing effect on the condensate recovery pipe 1324, thereby preventing the volatilization or reflux of the condensate.

[0048] like Figure 3 As shown, in one embodiment, the adsorption refrigeration block 1312 includes an activated carbon outer layer 131a and a heat exchange inner layer 131b, the activated carbon outer layer 131a is arranged outside the heat exchange inner layer 131b, and the refrigerant circulation pipe 1130 penetrates and is connected to the heat exchange inner layer 131b. It can be understood that because the activated carbon outer layer 131a is sleeved outside the heat exchange inner layer 131b, the adsorption refrigeration block 1312 can adsorb water vapor and volatilized organic phase in the exhaust gas through the activated carbon outer layer 131a, and can also increase the sufficient contact time between the water vapor and the volatilized organic phase and the heat exchange inner layer 131b. Because the refrigerant circulation pipe 1130 penetrates and is connected to the heat exchange inner layer 131b, the refrigerant in the refrigerant circulation pipe 1130 can exchange heat with water vapor and volatilized organic phase through the heat exchange inner layer 131b. The water vapor and the volatilized organic phase meet and cold-precipitate the activated carbon outer layer 131a and gather to form condensate. In addition, by arranging the activated carbon outer layer 131a and the heat exchange inner layer 131b layer by layer outside the refrigerant circulation pipe 1130, the refrigerant circulation pipe 1130 can be prevented from directly contacting the exhaust gas, thereby protecting the refrigerant circulation pipe 1130.

[0049] like Figure 3As shown, in this embodiment, the refrigerant circulation pipe 1130 is divided into a liquid delivery section 1131, a conductive heat exchange section 1132 and an exhaust section 1133 in sequence along the flow direction B of the refrigerant, the conductive heat exchange section 1132 is embedded in the heat exchange inner layer 131b in a bent shape, the liquid delivery section 1131 is connected to the liquid refrigerant discharge port 1123 of the refrigeration component 110, and the exhaust section 1133 is connected to the gaseous refrigerant return port 1124 of the refrigeration component 110. It can be understood that because the liquid delivery section 1131 is connected to the liquid refrigerant discharge port 1123 of the refrigeration component 110, the liquid refrigerant can be transported to the conductive heat exchange section 1132. Since the conductive heat exchange section 1132 is embedded in the heat exchange inner layer 131b in a bent shape, the contact area between the conductive heat exchange section 1132 and the heat exchange inner layer 131b can be increased, and the cold transfer efficiency between the refrigerant circulation pipe 1130 and the heat exchange inner layer 131b can be improved to accelerate the cooling of water vapor and the volatile organic phase. In addition, because the exhaust section 1133 is connected to the gaseous refrigerant return port 1124 of the refrigeration component 110, the liquid refrigerant will be heated to form a gaseous refrigerant after heat exchange with the water vapor and the volatile organic phase through the heat exchange inner layer 131b. The gaseous refrigerant flows back to the gaseous refrigerant return port 1124 of the refrigeration component 110 through the exhaust section 1133, and the refrigeration component 110 cools the gaseous refrigerant into a liquid refrigerant again, so that the refrigeration component 110 can continuously condense the tail gas through the refrigerant circulation, and the condensation efficiency is higher.

[0050] Combination Figure 3Specifically, the refrigeration assembly 110 includes a condenser 1110 and a branch pipe 1120. The branch pipe 1120 is provided with a liquid refrigerant inlet 1121, a gaseous refrigerant outlet 1122, a plurality of liquid refrigerant outlets 1123, and a plurality of gaseous refrigerant return ports 1124. The gaseous refrigerant outlet 1122 is connected to the refrigerant inlet 1111 of the condenser 1110, and the refrigerant outlet 1112 of the condenser 1110 is connected to the refrigerant outlet 1112 of the condenser 1110. Connected to the liquid refrigerant inlet 1121, there are a number of refrigerant circulation pipes 1130, the liquid delivery section 1131 of each refrigerant circulation pipe 1130 is connected to each liquid refrigerant discharge port 1123 one by one, the exhaust section 1133 of each refrigerant circulation pipe 1130 is connected to each gaseous refrigerant return port 1124 one by one, and the conduction heat exchange section 1132 of each refrigerant circulation pipe 1130 is embedded in each heat exchange inner layer 131b one by one. It can be understood that because the gaseous refrigerant outlet 1122 is connected to the refrigerant inlet 1111 of the condenser 1110, the gaseous refrigerant can enter the condenser 1110 through the refrigerant inlet 1111 of the condenser 1110 and be re-cooled into liquid refrigerant. Because the refrigerant outlet 1112 of the condenser 1110 is connected to the liquid refrigerant inlet 1121, the liquid refrigerant flows into the branch pipe 1120, and the several liquid refrigerant outlets 1123 of the branch pipe 1120 are connected to the liquid delivery section 1131 of each refrigerant circulation pipe 1130 one by one, and the conduction heat exchange section 1132 of each refrigerant circulation pipe 1130 is embedded in each heat exchange inner layer 131b one by one, so that the liquid refrigerant can flow to each heat exchange inner layer 131b synchronously for cold transfer. At the same time, because the exhaust sections 1133 of each refrigerant circulation pipe 1130 are connected to each gaseous refrigerant return port 1124 one by one, the gaseous refrigerant can be synchronously returned to the branch pipe 1120, and finally transported to the condenser 1110 through the branch pipe 1120 for re-cooling. The refrigeration assembly 110 in this embodiment is connected to each adsorption refrigeration block 1312 through each refrigerant circulation pipe 1130 one by one, which can not only accelerate the circulation and heat exchange efficiency of the refrigerant, but also ensure that the refrigeration effect of each adsorption refrigeration block 1312 tends to be consistent, so that the condensation effect of each part in the condensation chamber 1310 remains stable.

[0051] like Figure 1As shown, in one embodiment, the separation and recovery component 120 includes a condensate dehydrator 1210 and an organic phase clarification chamber 1220, the liquid inlet end 1211 of the condensate dehydrator 1210 is connected to the bottom of the liquid accumulation part 1322, the organic phase discharge end 1212 of the condensate dehydrator 1210 is connected to the organic phase inlet 1221 of the organic phase clarification chamber 1220, the drainage end 1213 of the condensate dehydrator 1210 is used to be connected to a drainage ditch (not shown), and the organic phase outlet 1222 of the organic phase clarification chamber 1220 is used to be connected to the extraction system 200. It can be understood that, because the liquid inlet end 1211 of the condensate dehydrator 1210 is connected to the bottom of the liquid accumulation part 1322, the condensate gathered at the bottom of the liquid accumulation part 1322 will flow into the condensate dehydrator 1210, and the condensate dehydrator 1210 separates the water in the condensate, and the discharge end 1213 of the condensate dehydrator 1210 is connected to the drainage ditch, so that the separated water can be discharged to the drainage ditch. In addition, because the organic phase discharge end 1212 of the condensate dehydrator 1210 is connected to the organic phase inlet 1221 of the organic phase clarification chamber 1220, and the organic phase outlet 1222 of the organic phase clarification chamber 1220 is connected to the extraction system 200, the organic phase in the condensate can be returned to the extraction system 200 for reuse after being purified by the organic phase clarification chamber 1220, thereby realizing the reuse of the organic phase (extractant), which can not only reduce the waste of the organic phase, but also avoid the environmental pollution caused by direct discharge. Specifically, the condensate dehydrator 1210 and the organic phase clarification chamber 1220 can both use devices commonly used by those skilled in the art. Among them, the condensate dehydrator 1210 can be an oil-water separator or the like.

[0052] like Figure 4 As shown, the present disclosure also provides a cyclic extraction device 10 including an extraction system 200 and a volatile organic phase condensation recovery device 100 according to any of the above embodiments; the extraction system 200 includes an extraction mixing chamber 210 and an extraction clarifying chamber 220 which are connected to each other, the tail gas conduit 2210 of the extraction clarifying chamber 220 is used to be connected to a tail gas treatment system (not shown) through a gas collecting pipe 130, and the organic phase outlet 1222 of the organic phase clarifying chamber 1220 is connected to the extraction mixing chamber 210. It can be understood that because the tail gas conduit 2210 of the extraction clarifying chamber 220 is connected to the tail gas treatment system through the gas collecting pipe 130, the water vapor and the volatilized organic phase in the tail gas can be recovered by the gas collecting pipe 130, and the other parts of the tail gas can be centrally treated by the tail gas treatment system, so as to avoid direct discharge of the tail gas to cause environmental pollution. Since the organic phase outlet 1222 of the organic phase clarifying chamber 1220 is connected to the extraction mixing chamber 210, the organic phase (extractant) can flow back into the extraction mixing chamber 210 for recycling, thereby improving the utilization rate of the organic phase. Specifically, both the extraction mixing chamber 210 and the extraction clarifying chamber 220 can use devices commonly used by those skilled in the art.

[0053] In one embodiment, for better understanding, the use process of the volatile organic phase condensation recovery device 100 of the above embodiment is described as follows:

[0054] First, the gas collection pipe 130 is connected and set on the exhaust gas duct 2210. When the exhaust gas duct 2210 discharges exhaust gas, the exhaust gas passes through the condensation chamber 1310 and the collection chamber 1320 in sequence. The adsorption refrigeration block 1312 in the condensation chamber 1310 specifically adsorbs water vapor and volatilized organic phase in the exhaust gas. The water vapor and volatilized organic phase in the exhaust gas meet the adsorption refrigeration block 1312 and gather to form condensate. The exhaust gas blows the condensate, and the condensate flows to the liquid accumulation part 1322 and gathers at the bottom of the liquid accumulation part 1322 under the action of gravity. At the same time, the condensate flows through the bottom of the liquid accumulation part 1322 to the separation and recovery component 120, and the separation and recovery component 120 separates and recovers the organic phase in the condensate.

[0055] Compared with the prior art, the present invention has at least the following advantages:

[0056] 1) The exhaust gas collecting pipe 130 is connected to the exhaust gas conduit 2210 so that the exhaust gas in the exhaust gas conduit 2210 passes through the condensation chamber 1310 and the collecting chamber 1320 in sequence. Because a plurality of adsorption refrigeration blocks 1312 are arranged in the condensation chamber 1310, the adsorption refrigeration blocks 1312 can specifically adsorb water vapor and volatilized organic phase in the exhaust gas to prolong the contact time between the water vapor and the volatilized organic phase and the adsorption refrigeration blocks 1312, thereby causing the water vapor and the volatilized organic phase to condense and gather to form condensate, which is blown to the liquid accumulation portion 1322 by the exhaust gas. Since the liquid accumulation portion 1322 is formed by the two ends of the cavity wall of the liquid collection chamber 1320 being concave downward toward the middle, the condensate will be able to overcome the blowing force of the exhaust gas under the action of gravity and gather at the bottom of the liquid accumulation portion 1322, and the bottom of the liquid accumulation portion 1322 is connected to the separation and recovery component 120, so that the condensate will eventually flow to the separation and recovery component 120, and the separation and recovery component 120 can effectively separate and recover the organic phase in the condensate.

[0057] 2) Compared with the fully automatic recovery device of organic volatiles in the prior art, the volatile organic phase condensation recovery device 100 in the present disclosure can specifically strip water vapor and volatilized organic phase from the exhaust gas, while the other parts of the exhaust gas continue to be discharged through the exhaust gas duct 2210, which not only avoids the additional process of treating the entire exhaust gas, but also improves the purification efficiency of the organic phase.

[0058] 3) The volatile organic phase condensation recovery device 100 in the present disclosure adopts a multi-unit layout, which does not need to occupy a whole large use space. The various parts of the volatile organic phase condensation recovery device 100 can be separately arranged in multiple separate small use spaces, making the installation more flexible.

[0059] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A volatile organic phase condensation recovery device (100), comprising: A refrigeration component (110), wherein the refrigeration component (110) is used to cool a refrigerant; A separation and recovery component (120), wherein the separation and recovery component (120) is used to separate and recover the organic phase; Characterized in that the volatile organic phase condensation recovery device (100) further comprises a gas-liquid collecting pipe (130); The gas-passing collecting pipe (130) is used to be connected to the exhaust gas duct (2210), and the tube cavity of the gas-passing collecting pipe (130) is divided into a condensation chamber (1310) and a collecting chamber (1320) in sequence along the flow direction of the exhaust gas; a plurality of adsorption refrigeration blocks (1312) are arranged in the condensation chamber (1310), and each of the adsorption refrigeration blocks (1312) is respectively connected to the refrigeration component (110) through a refrigerant circulation pipe (1130); the cavity wall of the collecting chamber (1320) is recessed downward from both ends to the middle to form a liquid accumulation portion (1322), and the bottom of the liquid accumulation portion (1322) is connected to the separation and recovery component (120).

2. The volatile organic phase condensation recovery device (100) according to claim 1, characterized in that: The cavity wall of the liquid collecting cavity (1320) is respectively formed with a first liquid guiding slope portion (1321) and a second liquid guiding slope portion (1323) at both ends of the liquid accumulation portion (1322); the first liquid guiding slope portion (1321) is connected to the condensation cavity (1310) and slopes downward toward the liquid accumulation portion (1322); the second liquid guiding slope portion (1323) is connected to the exhaust gas duct (2210) and slopes downward toward the liquid accumulation portion (1322).

3. The volatile organic phase condensation recovery device (100) according to claim 2, characterized in that: The slope of the first liquid-conducting slope (1321) is 2%-3%; and / or, The slope of the second liquid guiding slope (1323) is 2%-3%.

4. The volatile organic phase condensation recovery device (100) according to claim 1, characterized in that: A blower (1330) is also provided in the tube cavity of the gas-transmitting liquid collecting pipe (130); the blower (1330) is arranged at one end of the liquid collecting cavity (1320) away from the condensing cavity (1310); and the air inlet of the blower (1330) is arranged toward the liquid accumulation portion (1322).

5. The volatile organic phase condensation recovery device (100) according to claim 1, characterized in that: A plurality of the adsorption refrigeration blocks (1312) are divided into a plurality of refrigeration rows (1311) along the flow direction of the exhaust gas, and the adsorption refrigeration blocks (1312) in the same refrigeration row (1311) are arranged at intervals; the corresponding adsorption refrigeration blocks (1312) in two adjacent refrigeration rows (1311) are arranged in a staggered manner, and an air-through condensation gap (131c) is formed.

6. The volatile organic phase condensation recovery device (100) according to claim 1, characterized in that: The bottom of the liquid accumulation portion (1322) is connected to the separation recovery component (120) via a condensate recovery pipe (1324), and the condensate recovery pipe (1324) is bent at one end of the liquid accumulation portion (1322) to form a liquid storage bend (132a).

7. The volatile organic phase condensation recovery device (100) according to claim 1, characterized in that: The adsorption refrigeration block (1312) comprises an activated carbon outer layer (131a) and a heat exchange inner layer (131b), wherein the activated carbon outer layer (131a) is sleeved outside the heat exchange inner layer (131b), and the refrigerant circulation pipe (1130) penetrates and is abuttingly connected to the heat exchange inner layer (131b).

8. The volatile organic phase condensation recovery device (100) according to claim 7, characterized in that: The refrigerant circulation pipe (1130) is divided into a liquid delivery section (1131), a heat transfer section (1132) and an exhaust section (1133) in sequence along the flow direction of the refrigerant. The heat transfer section (1132) is embedded in the heat exchange inner layer (131b) in a bent shape. The liquid delivery section (1131) is connected to the liquid refrigerant discharge port (1123) of the refrigeration component (110), and the exhaust section (1133) is connected to the gaseous refrigerant return port (1124) of the refrigeration component (110).

9. The volatile organic phase condensation recovery device (100) according to claim 1, characterized in that: The separation and recovery component (120) includes a condensate dehydrator (1210) and an organic phase clarification chamber (1220), wherein the liquid inlet end (1211) of the condensate dehydrator (1210) is connected to the bottom of the liquid accumulation portion (1322), the organic phase discharge end (1212) of the condensate dehydrator (1210) is connected to the organic phase inlet (1221) of the organic phase clarification chamber (1220), the drainage end (1213) of the condensate dehydrator (1210) is used to be connected to a drainage ditch, and the organic phase outlet (1222) of the organic phase clarification chamber (1220) is used to be connected to the extraction system (200).

10. A circulating extraction device (10), characterized in that: It comprises an extraction system (200) and the volatile organic phase condensation recovery device (100) as claimed in claim 9; The extraction system (200) comprises an extraction mixing chamber (210) and an extraction clarifying chamber (220) which are connected to each other. The tail gas conduit (2210) of the extraction clarifying chamber (220) is used to be connected to the tail gas treatment system through the gas collection pipe (130), and the organic phase outlet (1222) of the organic phase clarifying chamber (1220) is connected to the extraction mixing chamber (210).

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