A sodium carboxymethyl cellulose production wastewater treatment equipment

Abstract

The invention discloses a sodium carboxymethylcellulose production wastewater treatment device, which relates to the technical field of sewage treatment devices. The device comprises an adsorption device, a floating object removal device, a solid particle briquetting device, an evaporation device, and a precipitation device connected in sequence, wherein the solid particle briquetting device comprises a first treatment barrel and a spiral blade, wherein the spiral blade is rotatably connected in the first treatment barrel, wherein a first motor is installed on the upper side of the first treatment barrel, wherein the output shaft of the first motor is coaxially connected with the spiral blade, and further comprises a discharge pipe and a treatment box, wherein one end of the discharge pipe is connected with the upper end of the first treatment barrel, and the other end of the discharge pipe passes through the upper side of the treatment box, wherein a pressing plate is slidably connected inside the treatment box through a reciprocating mechanism, wherein the solid particle briquetting device provided in the invention can filter the solid particles generated in the waste liquid, and briquette the filtered solid particles, and discharge the excess wastewater in the briquetting for secondary treatment, thereby improving the treatment efficiency of CMC wastewater and enhancing the treatment effect.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment devices, and in particular relates to a sodium carboxymethyl cellulose production wastewater treatment device. Background Art

[0002] Sodium carboxymethyl cellulose, referred to as CMC, is a cellulose ether product, a derivative made from natural fibers through chemical modification. It can be used as a food additive, flocculant, chelating agent, emulsifier, thickener, etc., and is widely used in food, daily chemicals, ceramics, electronics, plastics and other fields. The only pollutant produced by the CMC industry is wastewater, which is characterized by high salt and solid particles. For every ton of CMC produced, about 2.5-3 tons of waste liquid are generated. The treatment of CMC production wastewater has always been an important issue worldwide, and developed countries pay particular attention to it.

[0003] A sodium carboxymethyl cellulose industrial wastewater treatment device disclosed in the Chinese patent with publication number CN102153225B includes a filtering device, a first-effect evaporator, a second-effect evaporator, at least one mother liquor tank for sedimentation solid-liquid separation and a centrifuge, the sewage inlet of the filtering device is connected to the sewage outlet of the sump, the sewage outlet of the filtering device is connected to the sewage inlet of the first-effect evaporator, the sludge outlet of the first-effect evaporator is connected to the sludge inlet of the mother liquor tank, the sewage outlet of the first-effect evaporator is connected to the sewage inlet of the second-effect evaporator, the sludge outlet of the second-effect evaporator is connected to the sludge inlet of the mother liquor tank, the sludge outlet of the mother liquor tank is connected to the centrifuge, and the sewage outlet of the mother liquor tank is connected to the sewage inlet of the second-effect evaporator. The technical solution performs multi-channel evaporation and concentration on the waste liquid, with high efficiency and low energy consumption, obtains concentrated and usable solid salt, realizes comprehensive resource utilization, and realizes zero sewage discharge at the same time.

[0004] The above technical solution still has the following problems:

[0005] The filtering equipment used in the above technical solution is not specifically described. Although the current conventional filtering equipment can filter the solid particles in the CMC wastewater, the filtered solid particles cannot be effectively recovered and processed, and there is still a lot of wastewater in the filtered solid particles, resulting in poor wastewater treatment effect. Summary of the invention

[0006] In view of the above problems, the present invention provides a sodium carboxymethyl cellulose production wastewater treatment device to solve the problem that the filtering equipment in the current CMC wastewater treatment equipment cannot effectively recover the solid particles in the CMC wastewater, resulting in poor wastewater treatment effect.

[0007] The technical solution adopted to solve the above technical problems is: comprising an adsorption device, a floating object removal device, a solid particle briquetting device, an evaporation device, and a precipitation device connected in sequence, wherein the solid particle briquetting device comprises a first processing barrel and a spiral blade, wherein the first processing barrel is rotatably connected with a spiral blade, wherein the spiral blade is arranged in contact with the inner wall of the first processing barrel, wherein a plurality of filter holes are provided on the spiral blade, wherein a first motor is installed on the upper side of the first processing barrel, wherein the output shaft of the first motor is coaxially connected with the spiral blade, and further comprising a discharge pipe and a processing box, wherein one end of the discharge pipe is connected with the upper end of the first processing barrel, and the other end of the discharge pipe passes through the upper side of the processing box, and the inside of the processing box is slidable by a reciprocating mechanism. The cam is provided with a first spring which is fixedly connected to the right side of the second baffle plate, and the first spring is fixedly connected to the first slide groove, and the second baffle plate is slidably connected to the lower port of the discharge pipe. The right side of the second baffle plate is fixedly connected to the first spring, and the right end of the first spring is fixedly connected to the first slide groove. The left side of the second baffle plate is movably connected to a clamping piece through a torsion spring, and the clamping piece is detachably connected to the clamping piece. An opening block matched with the clamping piece is provided on the upper side of the processing box, and the opening block is located on the left side of the discharge pipe. The opening block is movably connected to the clamping piece. The bottom plate is slidably connected to the lower end of the pressure plate. The plate is fixedly connected to the inner wall of the processing box, an inclined surface is set on the right side of the bottom plate, and second slide grooves are opened on the front and rear sides of the processing box. The processing box is movably connected with a moving plate matching the bottom plate through the second slide groove. An inclined surface is set on the left side of the moving plate. The bottom plate and the moving plate are slidably connected through one side of the inclined surface. The bottom plate at the inclined surface is located on the upper side of the moving plate. A pressure block is connected to the front and rear sides of the moving plate. A second spring is connected to the lower side of the pressure block. A sliding block is connected to the lower end of the second spring. The pressure block, the second spring, and the sliding block are all in the second slide groove. The sliding block is slidably connected to the second slide groove. The front and rear sides of the moving plate are connected to the first connecting block, and the front and rear sides of the bottom plate are connected to the second connecting block. The first connecting block, the second The connecting blocks are all located in the second slide groove, the first connecting block is slidably connected to the second slide groove, the first connecting block is connected to the second connecting block through a third spring, a card plate is hinged on the upper side of the movable plate, the right side of the card plate is connected to the upper side of the movable plate through a fourth spring, an isolation plate is movably connected to the right side of the movable plate, the isolation plate is fixedly connected to the inside of the processing box, a matching plate is slidably connected to the upper end of the isolation plate, third slide grooves are provided on the front and rear sides of the processing box, the matching plate is slidably connected to the inner wall of the processing box through the third slide groove, a fifth spring is arranged between the right side of the matching plate and the third slide groove, a number of water permeable holes are provided on the matching plate, the processing box is connected to a first return pipe, and the first return pipe is located on the right side of the isolation plate.

[0008] Furthermore, the reciprocating mechanism includes a second motor and a rotating rod. The second motor is movably connected to one end of the rotating rod through a first bevel gear set. The other end of the rotating rod is rotatably connected to the processing box. The rotating rod is sleeved with a cylinder body, and a reciprocating groove is opened on the cylinder body. A sliding rod is inserted into the left side of the processing box. The sliding rod is slidably connected to the processing box. A limiting rod is connected to the left end of the sliding rod. The limiting rod is slidably connected to the cylinder body through the reciprocating groove, and the right end of the sliding rod is connected to the pressure plate.

[0009] Furthermore, the adsorption device includes a sewage storage tank and a first connecting pipe, the first return pipe is connected to the sewage storage tank, one side of the sewage storage tank is connected to a second treatment barrel through the first connecting pipe, a rotating shaft is rotatably connected in the second treatment barrel, a plurality of activated carbon rods are connected to the circumference of the rotating shaft, the rotating shaft is movably connected to a transmission rod through a second bevel gear set, the transmission rod passes through the second treatment barrel, the transmission rod is rotatably connected to the second treatment barrel, the transmission rod is movably connected to a main shaft through a third bevel gear set, and the main shaft is connected to the first bevel gear set.

[0010] Furthermore, the floating object removal device includes a third processing barrel and an adsorption roller. The third processing barrel is connected to the second processing barrel through a second connecting pipe, and the third processing barrel is connected to the first processing barrel through a third connecting pipe. The upper side of the third processing barrel is rotatably connected with an adsorption roller. A plurality of adsorption holes are provided on the adsorption roller. The adsorption roller is hollow. One end of the adsorption roller passes through the third processing barrel and is connected to an outlet pipe. The outlet pipe is connected to a pump body. The other end of the adsorption roller passes through the third processing barrel and is movably connected to the main shaft through a spur gear set.

[0011] Furthermore, the evaporation device includes an evaporator and a fourth connecting pipe, and the lower end of the first processing barrel is connected to the evaporator through the fourth connecting pipe.

[0012] Furthermore, the sedimentation device includes a primary sedimentation tank and a secondary sedimentation tank. One side of the primary sedimentation tank is connected to the evaporator through a fifth connecting pipe, and the other side of the primary sedimentation tank is connected to the secondary sedimentation tank through a sixth connecting pipe. The secondary sedimentation tank is connected to the first treatment barrel through a second reflux pipe, the second reflux pipe is connected to a third reflux pipe, the third reflux pipe is connected to the primary sedimentation tank, and a circulating pump is arranged on the third reflux pipe.

[0013] The beneficial effects of the present invention are:

[0014] (1) The solid particle briquetting device provided in the present invention can filter the solid particles generated in the waste liquid, and briquette the filtered solid particles, discharge the excess wastewater in the briquetting for secondary treatment, thereby improving the treatment efficiency of CMC wastewater and enhancing the treatment effect.

[0015] (2) The present invention can recover the residual ethanol and adsorbable substances in the CMC wastewater by means of the adsorption device.

[0016] (3) The floating matter removal device provided in the present invention can scrape the floating matter in the CMC wastewater and discharge it through the pump body, thereby improving the wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the solid particle briquetting device of the present invention.

[0019] Figure 3 It is a schematic diagram of the interior of the first processing barrel of the present invention.

[0020] Figure 4 The processing box of the present invention is a cross-sectional view Figure 1 .

[0021] Figure 5 The present invention Figure 4 Enlarged view of point A in the middle.

[0022] Figure 6 The processing box of the present invention is a cross-sectional view Figure 2 .

[0023] Figure 7 The cross-section processing box of the present invention is Figure 3 .

[0024] Figure 8 The present invention Figure 7 Enlarged view of point B in the middle.

[0025] Fig. 9 It is a partial structural schematic diagram of the present invention.

[0026] Fig.10 It is a schematic diagram of the adsorption device of the present invention.

[0027] Fig.11 It is a schematic diagram of the floating object removal device of the present invention.

[0028] Fig.12 It is a schematic diagram of a precipitation device of the present invention.

[0029] Fig.13 It is a schematic diagram of the structure of the card connector of the present invention.

[0030] Figure numerals: 1, adsorption device; 11, sewage storage tank; 12, first connecting pipe; 13, second treatment tank; 14, rotating shaft; 15, activated carbon rod; 16, second bevel gear; 17, transmission rod; 18, third bevel gear set; 19, main shaft; 2, floating object removal device; 21, third treatment tank; 22, adsorption roller; 23, second connecting pipe; 24, third connecting pipe; 25, adsorption hole; 26, outlet pipe; 27, pump body; 28, spur gear set; 3, solid particle briquetting device; 31, first treatment tank; 32, spiral blade; 33, filter hole; 34, first motor; 35, discharge pipe; 36, treatment tank; 37, pressing plate; 38, first baffle; 39, card slot; 310, first slide slot; 311, second baffle; 312, first spring; 313, card connector; 314, opening block; 315, bottom plate; 316, first Second chute; 317, moving plate; 318, pressing block; 319, second spring; 320, sliding block; 321, first connecting block; 322, second connecting block; 323, third spring; 324, clamping plate; 325, fourth spring; 326, isolation plate; 327, matching plate; 328, third chute; 329, fifth spring; 330, water permeable hole; 331, first return pipe; 332, torsion spring; 4, evaporation device 41. evaporator; 42. fourth connecting pipe; 5. sedimentation device; 51. primary sedimentation tank; 52. secondary sedimentation tank; 53. fifth connecting pipe; 54. sixth connecting pipe; 55. second return pipe; 56. third return pipe; 57. circulation pump; 6. reciprocating mechanism; 61. second motor; 62. rotating rod; 63. first bevel gear set; 64. cylinder; 65. reciprocating groove; 66. sliding rod; 67. limit rod. Implementation

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a sodium carboxymethyl cellulose production wastewater treatment device provided in this embodiment includes an adsorption device 1, a floating object removal device 2, a solid particle briquetting device 3, an evaporation device 4, and a precipitation device 5 connected in sequence. The adsorption device 1 is arranged to adsorb and recover the residual ethanol in the CMC wastewater to improve the practicality of the device. The floating object removal device 2 is arranged to remove the floating objects in the wastewater. The solid particle briquetting device 3 is arranged to remove the solid particles in the wastewater and briquette them for recovery. The evaporation device 4 is arranged to realize evaporation concentration and extract the salt therein. The precipitation device 5 is arranged to realize precipitation solid-liquid separation. The solid particle briquetting device 3 includes a first processing barrel 31 and a spiral blade 32. The first processing barrel 31 is connected to a spiral blade for rotation. 32, the spiral blade 32 is fitted with the inner wall of the first processing barrel 31, and a plurality of filter holes 33 are opened on the spiral blade 32. A first motor 34 is installed on the upper side of the first processing barrel 31, and the output shaft of the first motor 34 is coaxially connected with the spiral blade 32. It also includes a discharge pipe 35 and a processing box 36. One end of the discharge pipe 35 is connected to the upper end of the first processing barrel 31, and the other end of the discharge pipe 35 passes through the upper side of the processing box 36. The first motor 34 drives the spiral blade 32 to rotate. The rotation of the spiral blade 32 brings the solid particles to the upper end of the first processing barrel 31 and introduces them into the processing box 36 through the discharge pipe 35. The inside of the processing box 36 is slidably connected with a pressure plate 37 through a reciprocating mechanism 6. The reciprocating mechanism 6 realizes the horizontal reciprocating motion of the pressure plate 37 in the processing box 36.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig.13As shown, a first baffle plate 38 is connected to the upper end of the pressure plate 37, a card slot 39 is provided on the right side of the first baffle plate 38, first slide slots 310 are provided on both the front and rear sides of the processing box 36, a second baffle plate 311 is slidably connected to the processing box 36 through the first slide slot 310, the first baffle plate 38 and the second baffle plate 311 are both slidably connected to the lower port of the discharge pipe 35, a first spring 312 is fixedly connected to the right side of the second baffle plate 311, the right end of the first spring 312 is fixedly connected to the first slide slot 310, a clamping member 313 is movably connected to the left side of the second baffle plate 311 through a torsion spring 332, the clamping member 313 rotates clockwise and counterclockwise in the second baffle plate 311, and the rotation range is limited, and is subjected to the force of the torsion spring 332 when rotating, and the clamping member 313 is detachably connected to the card slot 39 The upper side of the processing box 36 is provided with an opening block 314 that cooperates with the clamping piece 313. The opening block 314 is located on the left side of the discharge pipe 35. The opening block 314 is movably connected with the clamping piece 313. The first baffle 38 and the second baffle 311 are provided to block the lower port of the discharge pipe 35. When the block pressing operation is performed, the discharge of solid particles is prevented. After the pressing plate 37 moves to the right, due to the action of the torsion spring 332, the lower end 313 of the clamping piece is clamped with the slot 39. After the pressing plate 37 moves to the left, the opening block 314 presses the clamping piece 313 downward to rotate it clockwise to a certain angle until the lower end of the clamping piece 313 is separated from the slot 39. After the clamping piece 313 is separated from the slot 39, the second baffle 311 is reset due to the action of the first spring 312.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the lower end of the pressure plate 37 is slidably connected to a bottom plate 315, and the bottom plate 315 is fixedly connected to the inner wall of the processing box 36. The right side of the bottom plate 315 is provided with an inclined surface, and the front and rear sides of the processing box 36 are provided with second slide grooves 316. The processing box 36 is movably connected to a movable plate 317 that matches the bottom plate 315 through the second slide groove 316. The left side of the movable plate 317 is provided with an inclined surface, and the bottom plate 315 is slidably connected to the movable plate 317 through one side of the inclined surface. The bottom plate 315 is located on the upper side of the movable plate 317 at the inclined surface. The purpose of this design is to move When the movable plate 317 moves to the left, due to the effect of the inclined surface, the movable plate 317 moves to the lower side of the bottom plate 315, and the front and rear sides of the movable plate 317 are connected to the pressing block 318, the lower side of the pressing block 318 is connected to the second spring 319, and the lower end of the second spring 319 is connected to the slider 320, the pressing block 318, the second spring 319, and the slider 320 are all in the second slide groove 316, and the slider 320 is slidably connected to the second slide groove 316, and the front and rear sides of the movable plate 317 are connected to the first connecting block 321, and the front of the bottom plate 315 is connected to the first connecting block 321. The second connecting block 322 is connected to both sides of the rear, the first connecting block 321 and the second connecting block 322 are both located in the second sliding groove 316, the first connecting block 321 is slidably connected to the second sliding groove 316, the first connecting block 321 and the second connecting block 322 are connected by a third spring 323, a clamping plate 324 is hinged on the upper side of the movable plate 317, and the right side of the clamping plate 324 is connected to the upper side of the movable plate 317 by a fourth spring 325. After the pressing plate 37 continues to move rightward under the drive of the reciprocating mechanism 6, the pressing plate 37 and the clamping plate 32 When the pressing plate 37 moves to the left, the clamping plate 324 and the moving plate 317 move to the left. The moving plate 317 moves downward at the same time due to the action of the inclined surface. At this time, the slider 320 slides in the second sliding groove 316, and the second spring 319 and the third spring 323 are in a compressed state. After continuous movement, the clamping plate 324 contacts the right side of the bottom plate 315, and then the clamping plate 324 and the pressing plate 37 are separated. After that, due to the action of the second spring 319 and the third spring 323, the moving plate 317 is reset.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the right side of the movable plate 317 is movably connected with an isolation plate 326, the isolation plate 326 is fixedly connected to the inside of the processing box 36, the upper end of the isolation plate 326 is slidably connected with a matching plate 327, the front and rear sides of the processing box 36 are provided with third slide grooves 328, the matching plate 327 is slidably connected to the inner wall of the processing box 36 through the third slide groove 328, a fifth spring 329 is provided between the right side of the matching plate 327 and the third slide groove 328, a plurality of water permeable holes 330 are provided on the matching plate 327, the processing box 36 is connected to a first return pipe 331, and the first return pipe 332 is connected to the processing box 36. The flow pipe 331 is located on the right side of the isolation plate 326. The isolation plate 326 divides the interior of the treatment box 36 into two spaces. The left side of the treatment box 36 recovers the solid particles that are briquette, and the right side of the treatment box 36 stores the wastewater that is filtered out. The matching plate 327 cooperates with the pressing plate 37 to achieve the briquetting treatment of the solid particles. The water-permeable hole 330 guides the wastewater discharged during the briquetting process into the right side of the treatment box 36, and guides it into the initial position through the first return pipe 331 for secondary treatment. A water pump is set on the first return pipe 331 to pump out the wastewater.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the reciprocating mechanism 6 includes a second motor 61 and a rotating rod 62. The second motor 61 is movably connected to one end of the rotating rod 62 through a first bevel gear set 63. The other end of the rotating rod 62 is rotatably connected to the processing box 36. The rotating rod 62 is sleeved with a cylinder 64. A reciprocating groove 65 is opened on the cylinder 64. A sliding rod 66 is inserted on the left side of the processing box 36. The sliding rod 66 is slidably connected to the processing box 36. The left end of the sliding rod 66 is connected to a limiting rod 67. The limiting rod 67 is slidably connected to the cylinder 64 through the reciprocating groove 65. The right end of the sliding rod 66 is connected to the pressing plate 37. The reciprocating mechanism 6 realizes the reciprocating motion of the pressing plate 37 and realizes the repeated briquetting operation of the solid particles. The rotation of the second motor 61 causes the rotating rod 62 to rotate, and then the limiting rod 67 moves in the reciprocating groove 65, realizing the reciprocating motion of the sliding rod 66 and the pressing plate 37.

[0037] like Figure 1 , Fig. 9 , Fig.10 , Fig.11As shown, the adsorption device 1 includes a sewage storage tank 11 and a first connecting pipe 12, a first return pipe 331 is connected to the sewage storage tank 11, one side of the sewage storage tank 11 is connected to the second treatment barrel 13 through the first connecting pipe 12, a rotating shaft 14 is rotatably connected in the second treatment barrel 13, a plurality of activated carbon rods 15 are connected to the peripheral side of the rotating shaft 14, the rotating shaft 14 is movably connected to a transmission rod 17 through a second bevel gear 16 group, the transmission rod 17 passes through the second treatment barrel 13, the transmission rod 17 is rotatably connected to the second treatment barrel 13, the transmission rod 17 is movably connected to a main shaft 19 through a third bevel gear group 18, the main shaft 19 is connected to the first bevel gear group 63, the first return pipe 331 is set to re-introduce the wastewater discharged by the briquetting into the sewage storage tank 11 for re-treatment, the set activated carbon rod 15 adsorbs the residual ethanol in the wastewater, and the rotation of the activated carbon rod 15 is realized by the transmission rod 17, the second bevel gear 16, the third bevel gear, and the main shaft 19, thereby improving its adsorption effect.

[0038] like Figure 1 , Fig. 9 , Fig.10 , Fig.11 As shown, the floating object removal device 2 includes a third processing barrel 21 and an adsorption roller 22. The third processing barrel 21 is connected to the second processing barrel 13 through a second connecting pipe 23, and the third processing barrel 21 is connected to the first processing barrel 31 through a third connecting pipe 24. The upper side of the third processing barrel 21 is rotatably connected with the adsorption roller 22. The adsorption roller 22 is provided with a plurality of adsorption holes 25. The adsorption roller 22 is hollow. One end of the adsorption roller 22 passes through the third processing barrel 21 and is connected to a guide pipe 26. The guide pipe 26 is connected to a pump body 27. The other end of the adsorption roller 22 passes through the third processing barrel 21 and is movably connected to the main shaft 19 through a spur gear set 28. The set adsorption roller 22 performs a floating object removal operation on the wastewater in the third processing barrel 21 when rotating, and scrapes the floating objects on the surface of the wastewater and sucks them out through the pump body 27.

[0039] like Figure 1 , Figure 2 , Fig.12 As shown, the evaporation device 4 includes an evaporator 41 and a fourth connecting pipe 42. The lower end of the first treatment barrel 31 is connected to the evaporator 41 through the fourth connecting pipe 42. The evaporator 41 adopts the evaporator in the existing technical solution to evaporate and concentrate the wastewater to extract the salt therein.

[0040] like Figure 1 , Figure 2 , Fig.12As shown, the sedimentation device 5 includes a primary sedimentation tank 51 and a secondary sedimentation tank 52. One side of the primary sedimentation tank 51 is connected to the evaporator 41 through a fifth connecting pipe 53, and the other side of the primary sedimentation tank 51 is connected to the secondary sedimentation tank 52 through a sixth connecting pipe 54. The secondary sedimentation tank 52 is connected to the first treatment barrel 31 through a second return pipe 55. The second return pipe 55 is connected to a third return pipe 56. The third return pipe 56 is connected to the primary sedimentation tank 51. A circulating pump 57 is arranged on the third return pipe 56. The primary sedimentation tank 51 and the secondary sedimentation tank 52 are arranged to perform multiple sedimentation treatments on the wastewater, and the secondary solid particle treatment and multiple sedimentation operations of the wastewater are realized through the circulating pump 57, the second return pipe 55 and the third return pipe 56.

[0041] The working principle of this embodiment is as follows: the process of treating CMC wastewater by this device is: removing adsorbable matter from CMC wastewater - removing surface floating matter - removing solid particles and briquetting for recycling - secondary treatment of wastewater discharged from briquetting - evaporation and concentration to extract salt - multiple precipitation cycles.

[0042] First, CMC wastewater is introduced into the sewage storage tank 11, and the second motor 61 is operated to rotate, driving the first bevel gear to move, so that the main shaft 19 rotates, and the rotation of the main shaft 19 drives the transmission rod 17 and the rotating shaft 14 to move, and the rotation of the rotating shaft 14 drives the activated carbon rod 15 to rotate, and the sewage in the second treatment barrel 13 is adsorbed to adsorb the adsorbable substances therein. Then the wastewater enters the third treatment barrel 21, and the second motor 61 drives the spur gear set 28 to move, and the adsorption roller 22 rotates accordingly to adsorb the floating objects on the surface of the wastewater in the third treatment barrel 21, and discharges it through the outlet pipe 26 and the pump body 27. Then the wastewater enters the first treatment barrel 31, and the first motor 34 rotates to drive the spiral blade 32 to rotate, and the solid particles are brought to the upper end of the first treatment barrel 31 and discharged into the treatment box 36 through the discharge pipe 35. When the spiral blade 32 rotates, the wastewater is discharged from the filter hole 33.

[0043] After that, the solid particle pressing block 318 processing operation is carried out. The solid particles are introduced into the processing box 36 through the discharge pipe 35, and fall to the upper side of the bottom plate 315 and the movable plate 317. The second motor 61 drives the rotating rod 62 to rotate through the first bevel gear, and the cylinder 64 rotates accordingly. The limit rod 67 slides in the reciprocating groove 65, so that the sliding rod 66 drives the pressing plate 37 to reciprocate. First, when the pressing plate 37 continues to move to the right, the first baffle plate 38 blocks the lower end of the discharge pipe 35 to prevent the solid particles from continuing to be introduced. The pressing plate 37 cooperates with the matching plate 327 to press the solid particles into the block 318. At this time, the matching plate 327 moves to the right, and the fifth spring 329 is compressed. The wastewater in the pressing block 318 is squeezed and discharged into the right side of the isolation plate 326 in the processing box 36. The wastewater flows back to the sewage storage tank 11 through the first return pipe 331 for further treatment.

[0044] At the same time, the card plate 324 is engaged with the left side of the pressure plate 37, and the card connector 313 is engaged with the card slot 39. When the pressure plate 37 moves to the left, the pressure plate 37 drives the card plate 324 and the movable plate 317 to move to the left. Due to the action of the inclined surface, the movable plate 317 moves downward at the same time, and the movable plate 317 is separated from the isolation plate 326. The gap between the two gradually expands until the pressure block 318 falls into the lower side of the processing box 36. At this time, the second spring 319 and the third spring 323 are compressed, and then the right side of the bottom plate 315 contacts the card plate 324 and provides a force for the card plate 324. When continuing to move to the left, the card plate 324 is separated from the pressure plate 37, and the movable plate 317 is reset due to the action of the third spring 323 and the second spring 319.

[0045] When the pressure plate 37 moves to the left, the second baffle 311 replaces the first baffle 38 to block the lower end of the discharge pipe 35. After the second baffle 311 continues to move to the left, the opening block 314 contacts the clamping piece 313, and the opening block 314 presses down the clamping piece 313, so that the clamping piece 313 is separated from the slot 39. The second baffle 311 is reset due to the action of the first spring 312, and the lower port of the discharge pipe 35 is opened to continue to introduce solid particles, and the next pressing block 318 operation is performed.

[0046] The wastewater after filtering out the solid particles is introduced into the evaporator 41 for evaporation and concentration operation, and then introduced into the primary sedimentation tank 51 and the secondary sedimentation tank 52 for sedimentation treatment, and multiple filtration and multiple sedimentation operations are realized through the second reflux pipe 55 and the third reflux pipe 56.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A sodium carboxymethylcellulose production wastewater treatment equipment, characterized in that: The invention comprises an adsorption device (1), a floating matter removal device (2), a solid particle briquetting device (3), an evaporation device (4), and a precipitation device (5) which are connected in sequence. The solid particle briquetting device (3) comprises a first processing barrel (31) and a spiral blade (32). The spiral blade (32) is rotatably connected inside the first processing barrel (31). The spiral blade (32) is arranged to fit the inner wall of the first processing barrel (31). A plurality of filter holes (33) are provided on the spiral blade (32). A first motor (34) is installed on the upper side of the first processing barrel (31). The output shaft of the first motor (34) is coaxially connected to the spiral blade (32). The invention also comprises a discharge pipe (35) and a processing box (36). One end of the discharge pipe (35) is connected to the upper end of the first processing barrel (31). The other end of the discharge pipe (35) passes through the upper side of the processing box (36). A pressing plate (37) is slidably connected inside the processing box (36) via a reciprocating mechanism (6). The upper end of the pressure plate (37) is connected to a first baffle (38), a slot (39) is provided on the right side of the first baffle (38), first slide grooves (310) are provided on both the front and rear sides of the processing box (36), a second baffle (311) is slidably connected to the processing box (36) through the first slide groove (310), the first baffle (38) and the second baffle (311) are both slidably connected to the lower end of the discharge pipe (35), and a first spring (312) is fixedly connected to the right side of the second baffle (311). ), the right end of the first spring (312) is fixedly connected to the first slide groove (310), the left side of the second baffle (311) is movably connected to a clamping member (313) through a torsion spring (332), the clamping member (313) and the clamping groove (39) are detachably connected, an opening block (314) matching with the clamping member (313) is arranged on the upper side of the interior of the processing box (36), the opening block (314) is located on the left side of the discharge pipe (35), and the opening block (314) and the clamping member (313) are movably connected; The lower end of the pressure plate (37) is slidably connected with a bottom plate (315), the bottom plate (315) is fixedly connected to the inner wall of the processing box (36), the right side of the bottom plate (315) is provided with an inclined surface, the front and rear sides of the processing box (36) are provided with second slide grooves (316), the processing box (36) is movably connected with a movable plate (317) matched with the bottom plate (315) through the second slide groove (316), the left side of the movable plate (317) is provided with an inclined surface, the bottom plate (315) and the movable plate (317) are slidably connected through one side of the inclined surface, the bottom plate (315) at the inclined surface is located on the upper side of the movable plate (317), the front and rear sides of the movable plate (317) are connected with a pressure block (318), the lower side of the pressure block (318) is connected with a second spring (319), the lower end of the second spring (319) is connected with a slider (320), the pressure block (318), the second spring (319), and the slider (320) are all located in the second slide groove (316), the slider (320) is slidably connected to the second slide groove (316), the front and rear sides of the movable plate (317) are connected to the first connecting block (321), the front and rear sides of the bottom plate (315) are connected to the second connecting block (322), the first connecting block (321) and the second connecting block (322) are both located in the second slide groove (316), the first connecting block (321) is slidably connected to the second slide groove (316), the first connecting block (321) and the second connecting block (322) are connected via the third spring (323), the upper side of the movable plate (317) is hinged with a card plate (324), and the right side of the card plate (324) is connected to the upper side of the movable plate (317) via a fourth spring (325); An isolation plate (326) is movably connected to the right side of the movable plate (317), and the isolation plate (326) is fixedly connected to the inside of the processing box (36). A matching plate (327) is slidably connected to the upper end of the isolation plate (326). A third slide groove (328) is provided on both the front and rear sides of the processing box (36). The matching plate (327) is slidably connected to the inner wall of the processing box (36) through the third slide groove (328). A fifth spring (329) is provided between the right side of the matching plate (327) and the third slide groove (328). A plurality of water permeable holes (330) are provided on the matching plate (327). The processing box (36) is connected to a first return pipe (331), and the first return pipe (331) is located on the right side of the isolation plate (326).

2. A sodium carboxymethylcellulose production wastewater treatment equipment according to claim 1, characterized in that: The reciprocating mechanism (6) comprises a second motor (61) and a rotating rod (62). The second motor (61) is movably connected to one end of the rotating rod (62) through a first bevel gear set (63). The other end of the rotating rod (62) is rotatably connected to the processing box (36). The rotating rod (62) is sleeved with a cylinder (64). A reciprocating groove (65) is provided on the cylinder (64). A sliding rod (66) is inserted on the left side of the processing box (36). The sliding rod (66) is slidably connected to the processing box (36). The left end of the sliding rod (66) is connected to a limiting rod (67). The limiting rod (67) is slidably connected to the cylinder (64) through the reciprocating groove (65). The right end of the sliding rod (66) is connected to the pressing plate (37).

3. A sodium carboxymethylcellulose production wastewater treatment equipment according to claim 2, characterized in that: The adsorption device (1) comprises a sewage storage tank (11) and a first connecting pipe (12), the first return pipe (331) being connected to the sewage storage tank (11), one side of the sewage storage tank (11) being connected to a second treatment barrel (13) through the first connecting pipe (12), a rotating shaft (14) being rotatably connected inside the second treatment barrel (13), a plurality of activated carbon rods (15) being connected to the circumference of the rotating shaft (14), the rotating shaft (14) being movably connected to a transmission rod (17) through a second bevel gear (16) group, the transmission rod (17) passing through the second treatment barrel (13), the transmission rod (17) being rotatably connected to the second treatment barrel (13), the transmission rod (17) being movably connected to a main shaft (19) through a third bevel gear group (18), and the main shaft (19) being connected to a first bevel gear group (63).

4. A sodium carboxymethylcellulose production wastewater treatment equipment according to claim 3, characterized in that: The floating object removal device (2) comprises a third processing barrel (21) and a suction roller (22). The third processing barrel (21) is connected to the second processing barrel (13) through a second connecting pipe (23). The third processing barrel (21) is connected to the first processing barrel (31) through a third connecting pipe (24). The upper side of the third processing barrel (21) is rotatably connected to the suction roller (22). The suction roller (22) is provided with a plurality of suction holes (25). The suction roller (22) is hollow. One end of the suction roller (22) passes through the third processing barrel (21) and is connected to a discharge pipe (26). The discharge pipe (26) is connected to a pump body (27). The other end of the suction roller (22) passes through the third processing barrel (21) and is movably connected to a main shaft (19) through a spur gear set (28).

5. A sodium carboxymethylcellulose production wastewater treatment equipment according to claim 1, characterized in that: The evaporation device (4) comprises an evaporator (41) and a fourth connecting pipe (42), and the lower end of the first processing barrel (31) is connected to the evaporator (41) through the fourth connecting pipe (42).

6. A sodium carboxymethylcellulose production wastewater treatment equipment according to claim 5, characterized in that: The precipitation device (5) comprises a primary precipitation tank (51) and a secondary precipitation tank (52); one side of the primary precipitation tank (51) is connected to the evaporator (41) via a fifth connecting pipe (53); the other side of the primary precipitation tank (51) is connected to the secondary precipitation tank (52) via a sixth connecting pipe (54); the secondary precipitation tank (52) is connected to the first treatment barrel (31) via a second return pipe (55); the second return pipe (55) is connected to a third return pipe (56); the third return pipe (56) is connected to the primary precipitation tank (51); and a circulation pump (57) is provided on the third return pipe (56).

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