Reactor

Abstract

The present invention discloses a reactor, comprising: a tank body, the tank body having a reaction chamber, and the reaction chamber having a raw liquid inlet, a liquid outlet, a circulating liquid inlet, and a circulating liquid outlet, the opening direction of the raw liquid inlet is tangential to the circumference of the tank body, and the liquid outlet is located above the raw liquid inlet; a rectifying member, the rectifying member is arranged in the reaction chamber, the rectifying member is located below the liquid outlet and above the raw liquid inlet, and the rectifying member is configured to block the raw liquid spiraled in from the raw liquid inlet from rising, guide a part of the circulating liquid flowing in from the circulating liquid inlet to descend and another part to rise. The reactor according to the present invention has the advantages of low cost, low risk of leakage, high reaction efficiency, strong anti-blocking ability, and continuous operation.

Description

Technical Field

[0001] The invention relates to the technical field of industrial waste acid treatment, and in particular to a reactor. Background Art

[0002] Using S 2- The technology of treating waste acid generated in industrial production with a solution (for example, a solution of soluble sulfide, a hydrolysis solution of hydrogen sulfide) can bring great economic and social benefits. The products after the reaction are a renewable liquid with heavy metal ions removed and an insoluble heavy metal sulfide precipitate. This series of reactions is carried out in a reactor, and the reaction efficiency of the reactor determines the removal rate of heavy metal ions in the waste acid.

[0003] Usually, an agitator is used in the reactor to mix the reaction solution evenly and prolong the residence time of the solution in the reactor to improve the reaction efficiency. However, the agitator increases the manufacturing and maintenance costs of the reactor on the one hand; on the other hand, it also increases the risk of leakage of the medium in the reactor, which is particularly disadvantageous in situations where leakage is not allowed.

[0004] In order to extend the reaction time and make the reaction complete, the actual production often adopts the method of multi-tank operation, that is, multiple identical reactors are operated alternately to ensure that the reaction degree of each reactor meets the design requirements. This parallel system has great requirements on production sites and investment, which is equivalent to changing continuous production to intermittent operation. The problem brought about is that the system pipeline is very easy to be blocked (taking the waste acid sulfidation treatment as an example, its reaction product is a poorly soluble and easily crystallized solid phase precipitate). Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a reactor having the advantages of low cost, low leakage risk, high reaction efficiency, strong anti-blocking ability, and continuous operation.

[0006] According to an embodiment of the present invention, the reactor comprises: a tank body, wherein the tank body has a reaction chamber, and the reaction chamber has a raw liquid inlet, a liquid outlet, a circulating liquid inlet, and a circulating liquid outlet, wherein the opening direction of the raw liquid inlet is tangential to the circumference of the tank body, and the liquid outlet is located above the raw liquid inlet; a rectifying member, wherein the rectifying member is arranged in the reaction chamber, wherein the rectifying member is located below the liquid outlet and above the raw liquid inlet, and wherein the rectifying member is configured to block the raw liquid spiraled in from the raw liquid inlet from rising, and to guide a part of the circulating liquid flowing in from the circulating liquid inlet to descend and another part to rise.

[0007] According to the reactor of the embodiment of the present invention, by arranging the raw liquid inlet tangentially along the circumference of the tank body and utilizing the rectifying piece, the reaction liquid can be made to move generally in a spiral downward in the tank body, which is beneficial to the uniform mixing of the reaction liquid in the tank body. The spiral running trajectory prolongs the reaction time and can run continuously and uninterruptedly, avoiding the growth, crystallization and precipitation of the reaction product in some structural dead corners; and the rectifying piece prevents the reaction liquid below from rising, so that a part of the circulating liquid will spiral downward and continue to participate in the reaction, which is beneficial to the further progress of the reaction. At the same time, the rest of the circulating liquid will rise and be discharged from the liquid outlet; in addition, since the reaction product contains solid particles, it is easier to obtain kinetic energy and tends to move with the rising part of the circulating liquid, thereby realizing the preliminary separation of solid and liquid after the reaction, which is beneficial to further improve the reaction efficiency.

[0008] In addition, the reactor according to the embodiment of the present invention also has the following additional technical features:

[0009] According to some embodiments of the present invention, the rectifying component includes: a mounting portion, which is mounted on the inner wall of the reaction chamber and extends along the circumference of the tank body, and the mounting portion is provided with a plurality of flow ports; a partition, which is mounted below the mounting portion, and the partition is spaced apart from the mounting portion and the inner wall of the reaction chamber, respectively, and the circulating liquid inlet is located between the mounting portion and the partition in the up and down directions.

[0010] Optionally, the mounting portion is provided with a retaining ring penetrating in the up-down direction, a grille is provided inside the retaining ring, and the plurality of flow openings are defined by the grille.

[0011] Optionally, the mounting portion and the partition are connected via a plurality of columns spaced apart along the circumference of the tank body.

[0012] Optionally, the horizontal projections of the plurality of flow openings are located within the horizontal projection of the partition.

[0013] According to some embodiments of the present invention, the opening direction of the circulating liquid inlet is tangential to the circumference of the tank body.

[0014] Furthermore, the opening direction of the circulating liquid inlet is consistent with the opening direction of the raw liquid inlet.

[0015] According to some embodiments of the present invention, the circulating liquid outlet is located at the bottom of the tank.

[0016] According to some embodiments of the present invention, a spoiler is provided on the inner wall of the reaction chamber, and the working surface of the spoiler is arc-shaped.

[0017] According to some embodiments of the present invention, the tank body includes: a lower shell; an upper shell, the upper shell is mounted on the lower shell and defines the reaction chamber together with the lower shell, and a portion of the fairing is clamped between the upper shell and the lower shell.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a reactor according to an embodiment of the present invention.

[0020] Reference numerals:

[0021] Reactor 10,

[0022] Tank 100, reaction chamber 101, raw liquid inlet 102, liquid outlet 103, circulating liquid inlet 104, circulating liquid outlet 105, spoiler 106, inspection hole 107, exhaust port 108, lower shell 110, upper shell 120,

[0023] The rectifying member 200, the mounting portion 210, the retaining ring 211, the grille 212, the partition plate 220, the column 230,

[0024] Support 300. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] The reactor 10 according to an embodiment of the present invention will be described below with reference to the drawings.

[0027] like Figure 1 As shown, the reactor 10 according to the embodiment of the present invention includes: a tank body 100 and a fairing 200 .

[0028] Specifically, the tank body 100 has a reaction chamber 101, and the reaction chamber 101 has a stock liquid inlet 102, a liquid outlet 103, a circulating liquid inlet 104, and a circulating liquid outlet 105. The opening direction of the stock liquid inlet 102 is tangential to the circumference of the tank body 100, and the liquid outlet 103 is located above the stock liquid inlet 102. In this way, the stock liquid to be reacted is pumped into the tank body 100 from the stock liquid inlet 102. Since the stock liquid inlet 102 is arranged tangentially to the circumference of the tank body 100, the stock liquid entering tangentially will mix and continuously push the reaction liquid (i.e., circulating liquid) in the tank body 100 to rotate in one direction; the circulating pump sucks the reaction liquid in the tank body 100 through the circulating liquid outlet 105, and then pumps it back into the tank body 100 through the circulating liquid inlet 104 to participate in the reaction.

[0029] The rectifying member 200 is disposed in the reaction chamber 101, and is located below the liquid outlet 103 and above the raw liquid inlet 102. The rectifying member 200 is configured to block the raw liquid spiraled in from the raw liquid inlet 102 from rising, and to guide a portion of the circulating liquid flowing in from the circulating liquid inlet 104 to descend and another portion to rise.

[0030] According to the reactor 10 of the embodiment of the present invention, by arranging the raw liquid inlet 102 tangentially along the circumference of the tank body 100 and utilizing the rectifying piece 200, the reaction liquid can be made to move generally in a spiral downward in the tank body 100, which is beneficial to the uniform mixing of the reaction liquid in the tank body 100. The spiral running trajectory prolongs the reaction time and can run continuously and uninterruptedly, thus avoiding the growth, crystallization and precipitation of the reaction product in some structural dead corners; and the rectifying piece 200 prevents the reaction liquid below from rising, so that a part of the circulating liquid will spiral downward and continue to participate in the reaction, which is beneficial to the further progress of the reaction. At the same time, the rest of the circulating liquid will rise and be discharged from the liquid outlet 103; in addition, since the reaction product contains solid particles, it is easier to obtain kinetic energy and tends to move with the rising part of the circulating liquid, thereby realizing the preliminary separation of solid and liquid after the reaction, which is beneficial to further improve the reaction efficiency.

[0031] According to some embodiments of the present invention, Figure 1As shown, the rectifying member 200 includes: a mounting portion 210 and a partition 220. The mounting portion 210 is mounted on the inner wall of the reaction chamber 101, and the mounting portion 210 extends along the circumference of the tank body 100. The mounting portion 210 is provided with a plurality of circulation ports. The partition 220 is mounted below the mounting portion 210, and the partition 220 is spaced apart from the mounting portion 210 and the inner wall of the reaction chamber 101, respectively. The circulating liquid inlet 104 is located between the mounting portion 210 and the partition 220 in the vertical direction. In this way, the partition 220 prevents the reaction liquid below the partition 220 from rising, and a part of the circulating liquid will spiral downward and pass through the gap between the partition 220 and the inner wall of the reaction chamber 101. The mounting portion 210 cuts off the short-circuit channel for the circulating liquid to be directly discharged from the liquid outlet 103. The plurality of circulation ports convert the rotational motion of the fluid into a vertical upward motion, and reduce the vibration of the reactor 10 to the foundation.

[0032] Alternatively, if Figure 1 As shown, the mounting portion 210 is provided with a retaining ring 211 penetrating in the up-down direction, a grille 212 is provided inside the retaining ring 211, and a plurality of flow openings are defined by the grille 212, so that the structure is relatively simple and can smoothly convert the rotational motion of the fluid into vertical ascending motion.

[0033] Alternatively, if Figure 1 As shown, the mounting portion 210 is connected to the partition plate 220 via a plurality of columns 230 , and the plurality of columns 230 are arranged at intervals along the circumference of the tank body 100 , so that the structure is relatively firm.

[0034] Alternatively, if Figure 1 As shown, the horizontal projection of the plurality of flow openings is located within the horizontal projection of the partition 220, so that the above-mentioned movement of the fluid can be effectively achieved. For example, the horizontal projection of the partition 220 is circular, so that the structure is relatively simple and the flow resistance is relatively small. At this time, the circumferential radius of the distribution of the plurality of flow openings is not greater than the radius of the partition 220.

[0035] According to some embodiments of the present invention, Figure 1 As shown, the opening direction of the circulating liquid inlet 104 is tangential to the circumference of the tank body 100, thereby facilitating the formation of spiral motion of the fluid.

[0036] Furthermore, if Figure 1 As shown, the opening direction of the circulating liquid inlet 104 is consistent with the opening direction of the raw liquid inlet 102. For example, the circulating liquid inlet 104 is located above the raw liquid inlet 102, and the circulating liquid inlet 104 and the raw liquid inlet 102 are arranged on the same side of the tank body 100, and the opening directions of the two are the same. In this way, since the tangential direction of the circulating liquid inlet 104 is consistent with the tangential direction of the raw liquid inlet 102, under the promotion of the circulating pump, the spiral motion of the reaction liquid in the tank body 100 is strengthened, which is conducive to further improving the reaction intensity.

[0037] According to some embodiments of the present invention, Figure 1 As shown, the circulating liquid outlet 105 is located at the bottom of the tank body 100, so as to facilitate the discharge of the circulating liquid.

[0038] According to some embodiments of the present invention, Figure 1 As shown, the inner wall of the reaction chamber 101 is provided with a spoiler 106, and the working surface of the spoiler 106 is arc-shaped, for example, the working surface of the spoiler 106 is arc-shaped. In this way, the spoiler 106 strengthens the disturbance of the reaction liquid, making the reaction liquid easier to mix evenly, and because the working surface of the spoiler 106 is arc-shaped, the resistance loss caused is small.

[0039] According to some embodiments of the present invention, Figure 1 As shown, the tank body 100 includes: a lower shell 110 and an upper shell 120. The upper shell 120 is mounted on the lower shell 110, and the upper shell 120 and the lower shell 110 together define the reaction chamber 101, and the edge of the mounting portion 210 is clamped between the upper shell 120 and the lower shell 110. In this way, the rectifying member 200 is integrally mounted and fixed between the lower shell 110 and the upper shell 120, and is easy to assemble and maintain.

[0040] The reactor 10 according to a specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] The edge of the mounting portion 210 is mounted between the lower shell 110 and the upper shell 120, and a retaining ring 211 is arranged in the middle of the mounting portion 210, and a grille 212 is arranged in the retaining ring 211. The partition 220 is arranged below the retaining ring 211, and the partition 220 is spaced and connected to the retaining ring 211 through at least three columns 230. The projection profile of the partition 220 on the circumference of the tank body 100 is circular. A circulating liquid inlet 104 and a raw liquid inlet 102 are arranged in the tangential direction of the circumference of the tank body 100, and the circulating liquid inlet 104 is located between the mounting portion 210 and the partition 220, and the raw liquid inlet 102 is located below the partition 220. Among them, the tangential direction of the circulating liquid inlet 104 is consistent with the tangential direction of the raw liquid inlet 102, the raw liquid inlet 102 is connected to a primary jet pump, and the circulating liquid outlet 105 and the circulating liquid inlet 104 are connected to a secondary jet pump, and the flow rate of the circulating liquid inlet 104 is greater than the flow rate of the raw liquid inlet 102.

[0042] Furthermore, a liquid outlet 103 is provided at the upper portion of the tank body 100, and the liquid outlet 103 extends into the interior of the tank body 100, and the liquid outlet 103 is located above the rectifying member 200. An inspection hole 107 is provided at the lower portion of the tank body 100. A circulating liquid outlet 105 is provided at the bottom of the tank body 100. A spoiler 106 is provided on the inner wall of the tank body 100, and the working surface of the spoiler 106 is arc-shaped.

[0043] In addition, the upper shell 120 is also provided with an exhaust port 108 to discharge the gas overflowing during operation. The inner wall of the tank body 100, each pipe opening and the mounting sealing surface, and all metal parts in contact with the working medium are lined with anti-corrosion lining. The upper shell 120 is also provided with a lifting lug to facilitate the disassembly of the tank body 100 and the inspection and maintenance of the reactor 10. The tank body 100 is provided with a support 300, and the entire reactor 10 is fixed on the working platform.

[0044] When the reactor 10 is working, the reactants (such as hydrogen sulfide and waste acid liquid) are mixed by a primary jet pump, and then pumped tangentially into the tank body 100 from the raw liquid inlet 102, and mixed with the original reaction liquid in the tank body 100, and the sulfidation reaction process of the waste acid liquid is carried out in a spiral downward motion.

[0045] Afterwards, the reaction liquid passes through the circulating liquid outlet 105, the secondary injection pump, and the circulating liquid inlet 104 in sequence, and is pumped back into the tank body 100, wherein a portion of the reaction liquid spirals downward into the space below the partition 220 to continue to participate in the reaction; the remaining reaction liquid (containing a large amount of insoluble sulfide product solid particles) will spiral upward, and after being rectified by the grid 212, it will be quickly discharged from the liquid outlet 103 extending into the interior of the tank body 100.

[0046] Other structures and operations of the reactor 10 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0047] In the description of the present invention, 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", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0049] In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features. A first feature "above" or "below" a second feature may include direct contact between the first and second features, or may include contact between the first and second features through another feature between them instead of direct contact. A first feature "above", "above" or "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0050] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "specific embodiments", "examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0052] Although the embodiments of the present invention 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 invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A reactor, characterized in that: include: A tank body, wherein the tank body has a reaction chamber, and the reaction chamber has a raw liquid inlet, a liquid outlet, a circulating liquid inlet, and a circulating liquid outlet, wherein the opening direction of the raw liquid inlet is tangential to the circumference of the tank body, and the liquid outlet is located above the raw liquid inlet; A rectifying member is disposed in the reaction chamber, the rectifying member is located below the liquid outlet and above the raw liquid inlet, and the rectifying member is configured to block the raw liquid spiraled in from the raw liquid inlet from rising, guide a part of the circulating liquid flowing in from the circulating liquid inlet to descend and another part to rise, The rectifier comprises: A mounting portion, the mounting portion is mounted on the inner wall of the reaction chamber and extends along the circumference of the tank body, and the mounting portion is provided with a plurality of flow openings; a partition, the partition being installed below the mounting portion, the partition being spaced apart from the mounting portion and the inner wall of the reaction chamber, respectively, the circulating liquid inlet being located between the mounting portion and the partition in the up-down direction, The mounting portion is provided with a retaining ring penetrating in the up-down direction, a grille is provided inside the retaining ring, and a plurality of flow openings are defined by the grille. The mounting portion is connected to the partition through a plurality of columns spaced apart along the circumference of the tank body. The horizontal projections of the plurality of flow openings are located within the horizontal projection of the partition. The opening direction of the circulating liquid inlet is tangential to the circumference of the tank body.

2. The reactor according to claim 1, characterized in that The opening direction of the circulating liquid inlet is consistent with the opening direction of the raw liquid inlet.

3. The reactor according to claim 1, characterized in that The circulating liquid outlet is located at the bottom of the tank body.

4. The reactor according to claim 1, characterized in that The inner wall of the reaction chamber is provided with a spoiler, and the working surface of the spoiler is arc-shaped.

5. The reactor according to any one of claims 1 to 4, characterized in that The tank body comprises: lower shell; An upper shell is mounted on the lower shell and defines the reaction chamber together with the lower shell, and a part of the rectifying member is clamped between the upper shell and the lower shell.

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