Flocculation defoaming mechanism of thickener

Abstract

The utility model discloses a flocculation defoaming mechanism of a thickener, relates to the technical field of defoaming of thickeners, and solves the technical problems that the defoaming mechanism of the thickener in the prior art is mainly used for defoaming after foam is generated, and the difficulty of defoaming after the foam is generated is higher than that of defoaming by controlling the adding state of a flocculating agent. The screening mechanism is arranged at the position of the flocculant feeding pipe of the thickener, and the particle size of the added flocculant is further limited through the screening mechanism, so that the size of the flocculant entering the thickener and participating in precipitation is not too large, the reaction degree of the flocculant and a suspension is limited, and more bubbles generated by strong reaction are avoided; the flocculant with the limited size is limited in reaction time, the concentration of the flocculant is conveniently controlled, the situation that foam is generated due to excessive addition and non-uniform dissolution of the flocculant is avoided, the size of the flocculant entering the thickener is controlled, it is guaranteed that the entering flocculant can be rapidly combined with suspended solids to generate precipitates, and the flocculating efficiency is improved. The generation of a large amount of foam caused by difficulty in controlling the concentration of a flocculating agent in the thickener is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of thickeners, relates to a thickener defoaming technology, and specifically is a flocculation defoaming mechanism of a thickener. Background Art

[0002] A thickener is a device widely used in the mining, chemical, environmental protection and other industries. It is mainly used for the sedimentation of solid particles in suspensions and the clarification of liquids. The solid particles in the suspension are settled by gravity, thereby achieving solid-liquid separation. Generally, flocculants are added simultaneously when the suspension is added to the thickener during use to accelerate the sedimentation of fixed particles. However, during the addition of flocculants, factors such as ambient temperature, oxygen content, and reagent concentration may cause foam to form on the surface of the clarified liquid above the thickener.

[0003] The reference patent name is: A defoaming device for a thickener (patent announcement number: CN220424614U). The foam at the overflow weir of the thickener is concentrated to the middle area through an annular air duct, and the foam is sprayed through a spray pipe to break the foam, thereby preventing the foam generated inside the thickener from affecting the return water quality and taking away some useful minerals to affect the recovery effect.

[0004] However, when implementing the above technical scheme, there are the following problems: the above device mainly focuses on defoaming after the foam is generated, and its air guide pipe is easily disturbed by the wind direction in the environment during the process of guiding the movement of the foam. The foam is difficult to concentrate at the position of the spray pipe, which will affect the defoaming efficiency and has a high uncertainty; and in the process of thickening the suspension, the size and concentration of the added flocculant are directly related to the generation of foam. If the added flocculant particles are larger, the coagulation effect with the solid particles will be reduced. More suspended matter in the water is more likely to generate foam, and larger flocculant particles make the concentration in the suspension more difficult to control, which is easy to cause excessive sedimentation; therefore, compared with centralized spraying defoaming after the foam is generated, controlling the addition state of the flocculant is more direct and convenient, and has greater significance for recycling.

[0005] To this end, the utility model proposes a flocculation and defoaming mechanism for a thickener. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a flocculation and defoaming mechanism of a thickener, which solves the problem that the defoaming mechanism of the thickener in the prior art mainly focuses on defoaming after the foam is generated, and defoaming after the foam is generated is more difficult than defoaming by controlling the flocculant addition state.

[0007] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a flocculation and defoaming mechanism of a thickener is provided, comprising: a driving frame and a thickener, the driving frame is fixed above the thickener, a feed pipe and a drug pipe are fixedly connected inside the driving frame, one end of the feed pipe is fixed to the inside of the thickener, a port of the drug pipe is inserted into the feed pipe, a drug box is fixedly connected to the surface of the driving frame, the drug box is fixedly connected to the drug pipe, a screening mechanism is arranged between the drug pipe and the drug box, and the screening mechanism comprises:

[0008] A plurality of crushing rollers, each of which is rotatably connected to the lower medicine box, and each of which is radially distributed inside the lower medicine box, and each of which is fixedly connected to a crushing gear at one end of the crushing roller away from the driving frame, and the crushing gears are meshed in pairs;

[0009] A screening net, the screening net is detachably connected to the interior of the lower medicine box, and an opening block is slidably connected to the interior of the lower medicine box;

[0010] A connecting rod, the connecting rod is fixedly connected to one end of the crushing roller in the middle, a plurality of connecting blocks are rotatably connected inside the connecting rod, the plurality of connecting blocks are symmetrical relative to the center of the connecting rod, and a fixing component is arranged between the connecting block and the screening net;

[0011] A plurality of vibration blocks are provided, and the plurality of vibration blocks are all in contact with the surface of the screening net, and a driving component is arranged between the lower medicine box and the vibration blocks.

[0012] Optionally, a control rod is slidably connected inside the connecting rod, an operating rod is threadedly connected inside the connecting rod, an operating groove is opened on the surface of the control rod, the operating groove fits with the operating rod, and the cross-sectional size of the operating groove continuously decreases toward the connecting block position.

[0013] Optionally, a plurality of control teeth are fixedly connected to the surface of the control rod, and a passive gear is rotatably connected to the interior of the connection block via a rotary bearing, and the passive gear is meshed with the control teeth.

[0014] Optionally, the fixing component includes: a fixing groove opened on the surface of the screening net, the cross-section of the fixing groove is "convex", a sliding groove is opened inside the connecting block, a plurality of fixed shafts are slidably connected inside the sliding groove, fixing springs are fixedly connected between the fixed shafts, a fixing rod is threadedly connected inside the connecting block, and a connecting belt is fixedly connected between the fixing rod and the fixed shaft.

[0015] Optionally, the driving assembly includes a driving cone wheel rotatably connected to one end of the connecting block, the driving cone wheel is rotatably connected to an end of the connecting block away from the connecting rod, and a plurality of driving cone wheels are rotatably connected to the interior of the lower medicine box through a rotating bearing, and the driving cone wheel is meshed with the driving cone wheel.

[0016] Optionally, a transfer rod is fixedly connected to the surface of the driving cone wheel, one end of the transfer rod is rotatably connected to the driving rod, the other end of the driving rod is fixedly connected to a moving rod, the moving rod is slidably connected to the interior of the lower medicine box, a moving block is fixedly connected to the surface of the moving rod, a moving groove is opened inside the vibration block, the moving groove and the moving block are adapted, and a moving spring is fixedly connected between the moving groove and the moving block.

[0017] Compared with the prior art, the utility model has the following beneficial effects: a screening mechanism is provided at the position of the flocculant feed pipe of the thickener, the particle size of the added flocculant is further limited by the screening mechanism, large-sized particles are crushed by a crushing roller, and the size of the agent entering the thickener to participate in precipitation is limited by screening through a screening net, and thus the degree of reaction of the flocculant with the suspension is limited, thus avoiding strong reaction to produce a large number of bubbles, and the reaction time of the flocculant with a limited size is limited, which facilitates the control of the concentration of the flocculant inside the thickener as a whole, avoiding excessive addition of flocculant and uneven dissolution to produce foam, and further by controlling the size of the flocculant entering the thickener, it is ensured that the flocculant entering can quickly combine with the suspended matter to produce precipitation, thus avoiding the difficulty in controlling the concentration of the flocculant inside the thickener to produce a large amount of foam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural stereogram of the utility model;

[0019] Figure 2 It is a three-dimensional structural cross-sectional view of the lower medicine box of the utility model;

[0020] Figure 3 For the utility model Figure 2 A is a magnified view of the local structure of the middle part;

[0021] Figure 4 For the utility model Figure 3 A magnified view of the local structure of B;

[0022] Figure 5 For the utility model Figure 3 A magnified view of the local structure of C in the middle;

[0023] Figure 6 For the utility model Figure 3 A magnified view of the local structure of D in the middle;

[0024] Figure 7 It is a three-dimensional structural cross-sectional view of the vibration block of the utility model;

[0025] Figure 8 For the utility model Figure 7 A magnified view of the local structure of E.

[0026] In the figure: 1, driving frame; 2, thickener; 3, feed pipe; 4, medicine pipe; 5, medicine box; 61, crushing roller; 62, crushing gear; 63, screening net; 64, opening block; 65, connecting rod; 66, connecting block; 67, vibration block;

[0027] 71. control lever; 72. operating lever; 73. operating slot; 74. control tooth; 75. driven gear;

[0028] 81. fixed groove; 82. sliding groove; 83. fixed shaft; 84. fixed spring; 85. fixed rod; 86. connecting belt;

[0029] 91. Driving cone wheel; 92. Driving cone wheel; 93. Transfer rod; 94. Driving rod; 95. Moving rod; 96. Moving block; 97. Moving slot; 98. Moving spring. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figure 1-8 As shown, a flocculation and defoaming mechanism of a thickener comprises a driving frame 1 and a thickener 2, wherein the driving frame 1 is fixed above the thickener 2;

[0032] It should be noted that a device for driving the paddle inside the thickener 2 to rotate is fixed on the surface of the driving frame 1;

[0033] The driving frame 1 is internally fixedly connected with a material discharge pipe 3 and a medicine discharge pipe 4;

[0034] The feed pipe 3 is fixedly connected to the inside of the thickener 2; the port of the medicine feed pipe 4 is inserted into the inside of the feed pipe 3;

[0035] The surface of the driving frame 1 is fixedly connected with a lower medicine box 5, and the lower medicine box 5 is fixedly connected with the lower medicine tube 4. A screening mechanism is provided between the lower medicine tube 4 and the lower medicine box 5, and the screening mechanism includes:

[0036] A plurality of crushing rollers 61, three of which are rotatably connected to the lower medicine box 5, and the three crushing rollers 61 are linearly distributed inside the lower medicine box 5, and one end of the crushing rollers 61 away from the driving frame 1 is fixedly connected to a crushing gear 62, and the crushing gears 62 are meshed with each other;

[0037] It should be noted that a motor is fixedly connected to the surface of the lower medicine box 5, one end of the motor output shaft is fixedly connected to a coupling, and the coupling is fixedly connected to the driving gear in the middle;

[0038] A screening net 63, wherein the screening net 63 is detachably connected to the interior of the lower medicine box 5, and an opening block 64 is slidably connected to the interior of the lower medicine box 5;

[0039] A connecting rod 65, the connecting rod 65 is fixedly connected to the surface of the middle crushing roller 61, a plurality of connecting blocks 66 are rotatably connected inside the connecting rod 65, the connecting blocks 66 are symmetrical with respect to the center of the connecting rod 65, and a fixing component for achieving connection is provided between the connecting block 66 and the screening net 63;

[0040] A plurality of vibration blocks 67, each of which is in contact with the surface of the screening net 63, and a driving assembly for driving the structure to move is provided between the lower medicine box 5 and the vibration blocks 67;

[0041] The flocculation and defoaming mechanism of the thickener is, in actual application, provided with a screening mechanism at the position of the flocculant feeding pipe 4 of the thickener 2, and the particle size of the added flocculant is further limited by the screening mechanism, and the large-sized particles are crushed by the crushing roller 61, and screened by the screening net 63, so that the size of the agent entering the thickener 2 to participate in the precipitation is limited, and then the degree of reaction between the flocculant and the suspension is limited, so as to avoid strong reaction to produce a large number of bubbles, and the reaction time of the flocculant with a limited size is limited, so as to facilitate the control of the concentration of the flocculant inside the thickener 2 as a whole, avoid excessive addition of flocculant, uneven dissolution to produce foam, and then by controlling the size of the flocculant entering the thickener 2, it is ensured that the flocculant entering can quickly combine with the suspended matter to produce precipitation, and avoid the concentration of the flocculant inside the thickener 2 being difficult to control and causing a large amount of foam to be produced;

[0042] In some specific embodiments, a control rod 71 is slidably connected inside the connecting rod 65, an operating rod 72 is threadedly connected inside the connecting rod 65, an operating groove 73 is opened on the surface of the control rod 71, the operating groove 73 is fitted with the operating rod 72, and the cross-sectional size of the operating groove 73 is continuously reduced toward the position of the connecting block 66, a plurality of control teeth 74 are fixedly connected to the surface of the control rod 71, and a rotating bearing (not shown in the figure) is fixedly connected inside the connecting block 66, and the inner ring of the rotating bearing is clamped with a driven gear 75, and the driven gear 75 is meshed with the control teeth 74;

[0043] It should be explained that the operating rod 72 is slid into the inside of the connecting rod 65, and the movement of the operating rod 72 causes the control rod 71 to move downward, thereby moving the control tooth 74, and the movement of the control tooth 74 drives the passive gear 75 to rotate, and then the connecting block 66 rotates, and the rotation of the connecting block 66 drives the shape of the screening net 63 fixed thereto to change. At this time, there is no structure between the lower medicine box 5 and the lower medicine tube 4, and the medicine can be added directly;

[0044] In some specific embodiments, the fixing assembly includes: a fixing groove 81 provided on the surface of the screening net 63, the fixing groove 81 having a "convex" cross section, a sliding groove 82 provided inside the connecting block 66, a plurality of fixing shafts 83 being slidably connected inside the sliding groove 82, fixing springs 84 being fixedly connected between the fixing shafts 83, a fixing rod 85 being threadedly connected inside the connecting block 66, and a connecting belt 86 being fixedly connected between the fixing rod 85 and the fixing shaft 83;

[0045] In some specific embodiments, the driving assembly includes a driving cone wheel 91 that is rotatably connected to one end of the connecting block 66, and the driving cone wheel 91 is rotatably connected to one end of the connecting block 66 away from the connecting rod 65. A plurality of rotating bearings (not shown in the figure) are fixedly connected inside the lower medicine box 5, and the inner ring of the rotating bearing is clamped with a driving cone wheel 92, and the driving cone wheel 92 is meshed with the driving cone wheel 91. A transfer rod 93 is fixedly connected to the surface of the driving cone wheel 92, and a driving rod 94 is rotatably connected to one end of the transfer rod 93, and a moving rod 95 is fixedly connected to the other end of the driving rod 94. The moving rod 95 is slidably connected to the inside of the lower medicine box 5, and a moving block 96 is fixedly connected to the surface of the moving rod 95. A moving groove 97 is opened inside the vibration block 67, and the moving groove 97 is adapted to the moving block 96, and a moving spring 98 is fixedly connected between the moving groove 97 and the moving block 96;

[0046] It should be noted that the movable distance of the moving block 96 in the moving groove 97 is less than the moving distance of the moving block 96 under the action of the moving rod 95. After the moving block 96 moves to a certain position, it can move again to drive the vibration block 67 to move and hit the screening net 63, so that the flocculant particles on the surface of the screening net 63 fall.

[0047] The working principle of the utility model is as follows: the motor on the surface of the lower medicine box 5 is started, and the pulverizing roller 61 and the pulverizing gear 62 in the middle rotate, driving all the pulverizing rollers 61 inside the lower medicine box 5 to rotate, and a flocculant is added into the lower medicine box 5. The flocculant will be broken into small portions under the action of the pulverizing roller 61, and fall onto the surface of the screening net 63, and enter the thickener 2 from the discharge pipe 3 through the screening net 63. The rotation of the pulverizing roller 61 drives the connecting rod 65 to rotate, and at this time, the connecting rod 65 drives the connecting block 66 to rotate. When the connecting block 66 rotates to the position of the driving cone wheel 92, the driving cone wheel 91 will cause the driving cone wheel 92 to rotate, and then the transfer rod 93 rotates, causing the driving rod 94 and the moving rod 95 to rotate, and then the moving block 96 slides. During the sliding process of the moving block 96, the vibration block 67 is driven to slide, so that the vibration block 67 hits the screening net 63, causing the flocculant to fall quickly.

[0048] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A flocculation and defoaming mechanism of a thickener, characterized in that: include: A driving frame (1) and a thickener (2), wherein the driving frame (1) is fixed above the thickener (2), a feed pipe (3) and a medicine feed pipe (4) are fixedly connected inside the driving frame (1), one end of the feed pipe (3) is fixed to the inside of the thickener (2), a port of the medicine feed pipe (4) is inserted into the inside of the feed pipe (3), a medicine feed box (5) is fixedly connected to the surface of the driving frame (1), the medicine feed box (5) is fixedly connected to the medicine feed pipe (4), a screening mechanism is arranged between the medicine feed pipe (4) and the medicine feed box (5), and the screening mechanism comprises: A plurality of crushing rollers (61), wherein the plurality of crushing rollers (61) are rotatably connected to the interior of the lower medicine box (5), the crushing rollers (61) are radially distributed inside the lower medicine box (5), and the ends of the crushing rollers (61) away from the driving frame (1) are fixedly connected to crushing gears (62), and the crushing gears (62) are meshed in pairs; A screening net (63), the screening net (63) being detachably connected to the interior of the lower medicine box (5), and an opening block (64) being slidably connected to the interior of the lower medicine box (5); A connecting rod (65), the connecting rod (65) is fixedly connected to one end of the pulverizing roller (61) in the middle, a plurality of connecting blocks (66) are rotatably connected inside the connecting rod (65), the plurality of connecting blocks (66) are symmetrical relative to the center of the connecting rod (65), and a fixing component is provided between the connecting block (66) and the screening net (63); A plurality of vibration blocks (67) are provided, and the plurality of vibration blocks (67) are all in contact with the surface of the screening net (63). A driving assembly is provided between the lower medicine box (5) and the vibration blocks (67).

2. A flocculation and defoaming mechanism of a thickener according to claim 1, characterized in that: The connecting rod (65) is internally slidably connected with a control rod (71), and the connecting rod (65) is internally threadedly connected with an operating rod (72). An operating groove (73) is provided on the surface of the control rod (71), and the operating groove (73) is fitted with the operating rod (72). The cross-sectional size of the operating groove (73) decreases continuously toward the position of the connecting block (66).

3. The flocculation and defoaming mechanism of a thickener according to claim 2, characterized in that: A plurality of control teeth (74) are fixedly connected to the surface of the control rod (71), and a passive gear (75) is rotatably connected to the interior of the connection block (66) via a rotary bearing, and the passive gear (75) is meshed with the control teeth (74).

4. The flocculation and defoaming mechanism of a thickener according to claim 1, characterized in that: The fixing assembly comprises: a fixing groove (81) provided on the surface of the screening net (63), the fixing groove (81) having a convex cross section, a sliding groove (82) provided inside the connecting block (66), a plurality of fixing shafts (83) being slidably connected inside the sliding groove (82), fixing springs (84) being fixedly connected between the fixing shafts (83), a fixing rod (85) being threadedly connected inside the connecting block (66), and a connecting belt (86) being fixedly connected between the fixing rod (85) and the fixing shaft (83).

5. The flocculation and defoaming mechanism of a thickener according to claim 1, characterized in that: The driving assembly comprises a driving cone wheel (91) rotatably connected to one end of the connecting block (66), the driving cone wheel (91) being rotatably connected to one end of the connecting block (66) away from the connecting rod (65), and a plurality of driving cone wheels (92) are rotatably connected inside the lower medicine box (5) via a rotating bearing, and the driving cone wheels (92) are meshed with the driving cone wheel (91).

6. A flocculation and defoaming mechanism of a thickener according to claim 5, characterized in that: The surface of the driving cone wheel (92) is fixedly connected with a transfer rod (93), one end of the transfer rod (93) is rotatably connected with a driving rod (94), the other end of the driving rod (94) is fixedly connected with a moving rod (95), the moving rod (95) is slidably connected to the inside of the lower medicine box (5), the surface of the moving rod (95) is fixedly connected with a moving block (96), a moving groove (97) is provided inside the vibration block (67), the moving groove (97) and the moving block (96) are adapted, and a moving spring (98) is fixedly connected between the moving groove (97) and the moving block (96).

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