CN106592306B - Pulping equipment based on air blasting energy and secondary pulping - Google Patents
Pulping equipment based on air blasting energy and secondary pulping Download PDFInfo
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- CN106592306B CN106592306B CN201610979552.0A CN201610979552A CN106592306B CN 106592306 B CN106592306 B CN 106592306B CN 201610979552 A CN201610979552 A CN 201610979552A CN 106592306 B CN106592306 B CN 106592306B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/36—Explosive disintegration by sudden pressure reduction
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The invention provides pulping equipment based on air blasting energy and secondary pulping, which mainly comprises a coarse pulp generating device, a bubble heating device and a fine pulp generating device. It is characterized by that it utilizes air blasting energy to break pulp and adopts secondary fine pulp breaking process. The invention realizes air blasting energy pulping through the bubble generating device and the bubble heating device; realizing multi-zone explosion slurry crushing through an upper exhaust ring and a lower exhaust ring; the fan-shaped pipe is used for guiding the air bubble to split, so that the upper exhaust ring and the lower exhaust ring are protected; screening and filtering the crushed aggregates through a Y-shaped filter; generating a coarse slurry by a coarse slurry generating device; fine pulp is achieved by a fine pulp generating device.
Description
Technical Field
The invention relates to pulping equipment based on air explosion energy and secondary pulping, in particular to pulping equipment which realizes air explosion energy pulping through a bubble generating device and a bubble heating device, realizes multi-region explosion pulping through an upper exhaust ring and a lower exhaust ring, guides bubble diversion through a fan-shaped pipe and protects the upper exhaust ring and the lower exhaust ring; the screening and filtering of crushed aggregates are realized through the Y-shaped filter, coarse pulp is generated through the coarse pulp generating device, fine pulp is realized through the fine pulp generating device, and the screening and filtering device belongs to the technical research and development field of pulp crushing equipment.
Background
The hydraulic pulper is used as one of the most common pulping equipment in pulping and papermaking industry, and is mainly used for pulping and separating pulp boards, waste books, waste cartons and the like. But due to the current pulper operation and structural singleness, the following problems are caused: firstly, the mechanical pulping efficiency is low, when the pulping machine works, the pulping machine is mainly driven by the rotation of a rotor to move and decompose, and in the pulping process, a part of energy is consumed on the reactive power loss of the machine, so that the mechanical pulping efficiency is low; secondly, the mechanical pulping energy consumption is high, and in the pulping process, the rotor is driven to rotate, and the fluid movement is overcome, so that the energy consumption is high; thirdly, the quality of the slurry is low, and the size of the generated crushed aggregates is uneven in the pulping process, so that the slurry is uneven.
Therefore, in order to solve the problems of low efficiency, high energy consumption, low slurry quality and the like commonly existing in the use of the existing pulpers, the pulping equipment with high efficiency, low energy consumption and high slurry quality is designed from the comprehensive consideration of the working mode and structure of the pulpers.
Disclosure of Invention
Aiming at the problems of low efficiency, high energy consumption, low slurry quality and the like commonly existing in the use of the existing pulper, the invention provides pulping equipment based on air explosion energy and secondary pulping, which can effectively solve the problems.
The invention relates to pulping equipment based on air blasting energy and secondary pulping, which adopts the following technical scheme:
the pulping equipment based on the air blasting energy and used for secondary pulping mainly comprises a coarse pulp generating device, a bubble heating device and a fine pulp generating device, wherein main components of the bubble generating device and the bubble heating device are arranged in the coarse pulp generating device, and the fine pulp generating device is arranged right below the coarse pulp generating device; the coarse pulp generating device mainly comprises a coarse pulp crushing cylinder, wherein 4 circumferentially uniformly distributed struts are arranged on the outer side of the lower end of the coarse pulp crushing cylinder, a coarse pulp outlet is formed in the inner side of the lower end of the coarse pulp crushing cylinder, and coarse crushed aggregates and coarse pulp crushing cylinder water are arranged in the coarse pulp crushing cylinder; the bubble generating device mainly comprises a bubble generator, a gas conveying pipe section A, a gas conveying pipe section B, a gas conveying pipe section C, a gas conveying pipe section D, an upper exhaust ring and a lower exhaust ring, wherein the gas conveying pipe section A, the gas conveying pipe section B, the gas conveying pipe section C and the gas conveying pipe section D are sequentially connected, the gas conveying pipe section A is connected with the bubble generator, the upper exhaust ring is connected with the gas conveying pipe section C, the lower exhaust ring is connected with the gas conveying pipe section D, the gas conveying pipe section A, the gas conveying pipe section C and the gas conveying pipe section D are respectively fixed on a coarse pulp crushing cylinder through supporting rings, the gas conveying pipe section B is fixed on the coarse pulp crushing cylinder through a buffer block of the gas conveying pipe section B, and a flow sensor is arranged at the upper end of the gas conveying pipe section B; the bubble heating device mainly comprises a heater, a wire, an upper heating ring and a lower heating ring, wherein the wire is led out by the heater, the wire is respectively connected with the upper heating ring and the lower heating ring, a protective tube is arranged outside the wire, the protective tube is respectively fixed on the coarse pulp crushing cylinder through a supporting ring and a protective tube buffer block, and a temperature sensor is arranged on the protective tube in the coarse pulp crushing cylinder; the fine pulp generating device mainly comprises a Y-shaped filter, a fine pulp barrel and a rotor, wherein the fine pulp barrel is welded under the coarse pulp barrel, the Y-shaped filter is arranged at the lower end of the coarse pulp barrel, the upper end and the lower end of the Y-shaped filter are respectively communicated with the coarse pulp barrel and the fine pulp barrel, the rotor is arranged at the inner side of the lower end of the fine pulp barrel, the lower end of the rotor is provided with a motor, fine pulp barrel water and fine pulp scraps are arranged in the fine pulp barrel, and a fine pulp outlet is arranged at the outer side of the lower end of the fine pulp barrel.
The diameter of the gas pipe section D isd 1 The diameter of the gas pipe section C isd 2 And is also provided withd 2 =2d 1 The diameter of the gas pipe section B isd 3 And is also provided withd 3 =4d 1 The diameter of the gas pipe section A isd 4 And is also provided withd 4 =8d 1 。
The upper exhaust ring consists of 3 circular pipes and 24 straight pipes, the 3 circular pipes are sequentially and radially distributed from inside to outside, the 24 straight pipes are respectively communicated and connected with adjacent circular pipes, and the 24 straight pipes are in a group of 8 and are uniformly distributed in the circumferential direction; the upper end of the upper exhaust ring is provided with 12 nozzles at equal intervals, the lower end of the upper exhaust ring is provided with 6 fan-shaped pipes at equal intervals, and each fan-shaped pipe is provided with 2 nozzles.
The lower exhaust ring consists of 3 circular pipes and 36 straight pipes, the 3 circular pipes are sequentially and radially distributed from inside to outside, the 36 straight pipes are respectively communicated and connected with adjacent circular pipes, and the 36 straight pipes are in a group of 12 and are uniformly distributed in the circumferential direction; the upper end of the lower exhaust ring is provided with 14 nozzles at equal intervals, the lower end of the lower exhaust ring is provided with 7 fan-shaped pipes at equal intervals, and each fan-shaped pipe is provided with 2 nozzles.
The longitudinal section of the fan-shaped pipe is fan-shaped, and the angle of the fan-shaped pipe isa 1 At 120 degrees, the included angle between 2 nozzles on the fan-shaped pipea 2 60 deg..
The upper heating ring and the lower heating ring are respectively composed of 3 circular pipes and 18 straight pipes, the 3 circular pipes are sequentially and radially distributed from inside to outside, the 18 straight pipes are respectively connected with adjacent circular pipes, and the 18 straight pipes are uniformly distributed in the circumferential direction in groups of 6.
The Y-shaped filter is of an annular funnel structure, the longitudinal section of the filter pipeline is of a Y shape, and the diameter of the section of the filter pipeline isd 5 And is also provided withd 5 = d 1 3, included angle between inclined filter pipeline and vertical filter pipelinea 3 The upper middle part of the Y-shaped filter is provided with an arc convex block with the angle of 135 degrees.
The invention generates air bubbles required by air explosion energy slurry breaking through the air bubble generating device, and forms primary slurry breaking, namely, the air generated by the air bubble generator respectively enters an upper exhaust ring and a lower exhaust ring through the air conveying pipe section A, the air conveying pipe section B, the air conveying pipe section C and the air conveying pipe section D, then the air bubbles are generated through the output of nozzles, the solubility of the air in the coarse slurry breaking barrel is reduced along with the increase of the water temperature in the coarse slurry breaking barrel, the air bubbles can be exploded in the rising process, the air bubbles can impact the coarse particles to generate a breaking effect, and the continuous air bubble explosion can continuously break the coarse particles, so that the coarse particles are broken into fine particles to form primary slurry breaking.
The invention sequentially halves the diameters of the gas transmission pipe sections, and the design is used for ensuring the gas transmission pressure so as to ensure the stable and continuous generation of bubbles, namely, the gas pressure is improved through the reduction of the sectional area of the gas transmission pipe so as to ensure the continuous advancing of the transmission gas, thereby ensuring that the lower exhaust ring has enough transmission gas and further ensuring that the lower exhaust ring continuously generates bubbles.
The invention detects the gas conveying quantity through the flow sensor, namely the flow sensor arranged at the upper end of the gas conveying pipe section B detects the passing gas quantity, and adjusts the bubble generation quantity in the coarse pulping barrel based on the gas conveying quantity, thereby controlling the blasting pulping efficiency of bubbles.
The invention realizes the generation of multi-region bubbles through the upper exhaust ring and the lower exhaust ring, namely, the lower exhaust ring and the upper exhaust ring are respectively arranged in the lower region and the middle region of the coarse pulp crushing cylinder so as to realize the explosion and the pulp crushing of the lower exhaust ring to the lower region and the middle region of the coarse pulp crushing cylinder and the upper exhaust ring to the upper region and the middle region of the coarse pulp crushing cylinder.
According to the invention, the generation of bubbles is realized through the nozzles on the upper exhaust ring and the lower exhaust ring, namely, the bubbles are generated by the gas in the upper exhaust ring and the lower exhaust ring through the nozzles, and a large number of bubbles can be generated through the design of the multiple nozzles on the upper exhaust ring and the lower exhaust ring, so that the bubble explosion and slurry breaking efficiency is improved.
The fan-shaped pipe is arranged at the lower ends of the upper exhaust ring and the lower exhaust ring, and 2 nozzles with included angles are arranged on the fan-shaped pipe, so that the impact of explosion bubbles on the upper exhaust ring and the lower exhaust ring can be prevented, and the bubble generation quantity can be increased, namely, the fan-shaped curved surface design of the fan-shaped pipe can enable the bubbles to move towards two sides along the fan-shaped curved surface in the rising process, so that the bubbles are prevented from directly impacting the upper exhaust ring or the lower exhaust ring, and the bubbles are prevented from being exploded at the upper exhaust ring and the lower exhaust ring, and the upper exhaust ring and the lower exhaust ring are protected; in addition, set up 2 spouts on the basis of fan-shaped curved surface of fan-shaped pipe, increase the bubble formation volume through increasing spout quantity, and then improve bubble explosion broken thick liquid efficiency.
The number of the upper nozzles of the lower exhaust ring is greater than that of the upper exhaust ring, and the explosion crushing pulp in the lower area of the coarse pulp crushing cylinder is reinforced through the design, namely, most of coarse pulp is accumulated at the lower end of the coarse pulp crushing cylinder under the action of dead weight, and the design of the lower exhaust ring with multiple nozzles can enable the coarse pulp to roll upwards in an upward area under the action of air flow, prevent the coarse pulp from accumulating and blocking in a Y-shaped filter, and ensure the explosion crushing pulp in the lower area, so that the crushing pulp is uniform.
The invention accelerates the early blasting of the air bubbles through the air bubble heating device, namely, the upper heating ring and the lower heating ring of the air bubble heating device are used for heating the water temperature of the coarse pulp crushing cylinder, the solubility of the air bubbles is forced to be reduced along with the increase of the water temperature, so that the air bubbles are blasted rapidly, and the designed upper heating ring and lower heating ring can enlarge the heating area of the coarse pulp crushing cylinder.
The temperature sensor is used for detecting the temperature in the coarse pulp crushing cylinder and controlling the explosion and crushing efficiency, namely the temperature of water in the coarse pulp crushing cylinder is detected to control the heating temperature of the upper heating ring and the lower heating ring, so that the solubility of bubbles is regulated, and the explosion rate of the bubbles and the explosion and crushing efficiency are controlled.
The invention realizes secondary pulp crushing through the fine pulp generating device so as to realize fine pulp crushing and generate fine pulp, namely fine pulp crushed by bubble explosion in the coarse pulp crushing cylinder enters the fine pulp crushing cylinder and is driven by the inner rotor of the fine pulp crushing cylinder to crush the fine pulp again to generate finer crushed materials, thus achieving fine pulp crushing and generating fine pulp.
The invention realizes the filtration of crushed aggregates through the Y-shaped filter, namely, the size of the fine crushed aggregates is controlled by arranging a certain section diameter of the filtering pipeline, and the Y-shaped filter with the annular funnel structure, namely, the large inlet structure, can increase the entering filtration quantity of the fine crushed aggregates.
The invention prevents the crushed aggregates from depositing through the arc convex blocks on the Y-shaped filter, so that the fine crushed aggregates can timely enter the fine crushing slurry cylinder through the Y-shaped filter, namely, the arc convex blocks enable the fine crushed aggregates to be difficult to deposit, for example, the fine crushed aggregates fall on the arc convex blocks, and the fine crushed aggregates can easily slide into the Y-shaped filter along the arc convex blocks and enter the fine crushing slurry cylinder.
The beneficial effects of the invention are as follows: air blasting energy pulping is realized through a bubble generating device and a bubble heating device; realizing multi-zone explosion slurry crushing through an upper exhaust ring and a lower exhaust ring; the fan-shaped pipe is used for guiding the air bubble to split, so that the upper exhaust ring and the lower exhaust ring are protected; screening and filtering the crushed aggregates through a Y-shaped filter; generating a coarse slurry by a coarse slurry generating device; fine pulp is achieved by a fine pulp generating device.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the lower exhaust ring of the present invention.
Fig. 3 is a schematic view of the structure of the upper exhaust ring of the present invention.
Fig. 4 is an enlarged schematic view of a partial structure of the bubble generating apparatus of the present invention.
Fig. 5 is an enlarged schematic view of a partial structure of the fan-shaped tube and spout of the present invention.
Fig. 6 is a schematic view of the structure of the upper and lower heating rings of the present invention.
FIG. 7 is a schematic view of the construction of the slurry producing apparatus of the present invention.
Fig. 8 is a schematic view of the structure of the Y-filter of the present invention.
Wherein: 1. the device comprises a support column, 2, a lower exhaust ring, 3, a fine pulp barrel, 4, a fine pulp outlet, 5, a motor, 6, a rotor, 7, fine pulp barrel water, 8, fine pulp, 9, a Y-shaped filter, 10, a coarse pulp outlet, 11, a heater, 12, a protection pipe, 13 fan-shaped pipes, 14, a nozzle, 15, a coarse pulp barrel, 16, an upper exhaust ring, 17, a temperature sensor, 18, a wire, 19, a protection pipe buffer block, 20, bubbles, 21, coarse pulp, 22, an upper heating ring, 23, coarse pulp barrel water, 24, a gas pipe section B,25, a flow sensor, 26, a gas pipe section B buffer block, 27, a gas pipe section C,28, a gas pipe section A,29, a lower heating ring, 30, a gas pipe section D,31, a bubble generator, 32, arc bumps, 33 and a support ring.
Detailed Description
Examples:
as shown in fig. 1, a pulping apparatus for secondary pulping based on air blasting energy of the present invention mainly includes a coarse pulp generating device, a bubble heating device, and a fine pulp generating device, the main components of the bubble generating device and the bubble heating device are installed in the coarse pulp generating device, and the fine pulp generating device is installed right below the coarse pulp generating device.
The coarse pulp generating device mainly comprises a coarse pulp crushing cylinder 15, wherein 4 circumferentially uniformly distributed struts 1 are arranged on the outer side of the lower end of the coarse pulp crushing cylinder 15, a coarse pulp outlet 10 is arranged on the inner side of the lower end of the coarse pulp crushing cylinder 15, and coarse crushed aggregates 21 and coarse pulp crushing cylinder water 23 are arranged in the coarse pulp crushing cylinder 15.
As shown in fig. 2, 3, 4 and 5, the bubble generating device mainly comprises a bubble generator 31, a gas pipe section a 28, a gas pipe section B24, a gas pipe section C27, a gas pipe section D30, an upper exhaust ring 16 and a lower exhaust ring 2, wherein the gas pipe section a 28, the gas pipe section B24, the gas pipe section C27 and the gas pipe section D30 are sequentially connected, the gas pipe section a 28 is connected with the bubble generator 31, the upper exhaust ring 16 is connected with the gas pipe section C27, the lower exhaust ring 2 is connected with the gas pipe section D30, the gas pipe section a 28, the gas pipe section C27 and the gas pipe section D30 are respectively fixed on the coarse pulp crushing cylinder 15 through support rings 33, the gas pipe section B24 is fixed on the coarse pulp crushing cylinder 15 through a gas pipe section B buffer block 26, and the upper end of the gas pipe section B24 is provided with a flow sensor 25; when the invention works, the gas conveying quantity is detected by the flow sensor 25, namely, the passing gas quantity is detected by the flow sensor 25 arranged at the upper end of the gas conveying pipe section B24, and the generation quantity of the bubbles 20 in the coarse pulping barrel 15 is regulated based on the passing gas quantity, so that the explosion and pulping efficiency of the bubbles 20 is controlled.
When the device works, the air bubble generating device is used for generating air bubbles 20 required by air explosion energy slurry breaking, primary slurry breaking is formed, namely, gas generated by the air bubble generator 31 enters the upper exhaust ring 16 and the lower exhaust ring 2 respectively through the gas transmission pipe section A28, the gas transmission pipe section B24, the gas transmission pipe section C27 and the gas transmission pipe section D30, then the air bubbles 20 are generated after being output through the nozzles 14, the solubility of the gas in the coarse slurry barrel 15 is reduced along with the increase of the water temperature in the coarse slurry barrel 15, the gas can be exploded in the rising process, the air bubbles 20 can be exploded to impact the coarse slurry 21 to generate a breaking effect, and continuous explosion of the air bubbles 20 can form continuous breaking on the coarse slurry 21, so that the coarse slurry 21 is broken into fine slurry 8 to form primary slurry breaking.
The diameter of the gas pipe section D30 isd 1 The diameter of the gas pipe section C27 isd 2 And is also provided withd 2 =2d 1 The diameter of the gas pipe section B24 isd 3 And is also provided withd 3 =4d 1 The diameter of the gas pipe section A28 isd 4 And is also provided withd 4 =8d 1 . The diameter of the gas pipe section is sequentially halved, the design is used for guaranteeing gas conveying pressure, and then stable and continuous generation of bubbles 20 is guaranteed, namely, the gas pressure is improved through reduction of the sectional area of the gas pipe section, so that conveying gas is guaranteed to continuously advance, the lower exhaust ring 2 is guaranteed to have enough conveying gas, and the lower exhaust ring 2 is guaranteed to continuously generate the bubbles 20.
The upper exhaust ring 16 consists of 3 circular pipes and 24 straight pipes, wherein the 3 circular pipes are sequentially and radially distributed from inside to outside, the 24 straight pipes are respectively communicated and connected with adjacent circular pipes, and the 24 straight pipes are in a group of 8 and are uniformly distributed in the circumferential direction; the upper end of the upper exhaust ring 16 is provided with 12 nozzles 14 at equal intervals, the lower end of the upper exhaust ring is provided with 6 fan-shaped pipes 13 at equal intervals, and each fan-shaped pipe 13 is provided with 2 nozzles 14.
The lower exhaust ring 2 consists of 3 circular pipes and 36 straight pipes, wherein the 3 circular pipes are sequentially and radially distributed from inside to outside, the 36 straight pipes are respectively communicated and connected with adjacent circular pipes, and the 36 straight pipes are in a group of 12 and are uniformly distributed in the circumferential direction; the upper end of the lower exhaust ring 2 is provided with 14 nozzles 14 at equal intervals, the lower end of the lower exhaust ring is provided with 7 fan-shaped pipes 13 at equal intervals, and each fan-shaped pipe 13 is provided with 2 nozzles 14.
When the device works, the generation of multi-region bubbles 20 is realized through the upper exhaust ring 16 and the lower exhaust ring 2, namely, in order to improve the explosion and slurry crushing efficiency of the bubbles 20, the lower exhaust ring 2 and the upper exhaust ring 16 are respectively arranged in the lower region and the middle region of the coarse slurry drum 15, so that the explosion and slurry crushing of the lower exhaust ring 2 to the lower region and the middle region of the coarse slurry drum 15 can be realized, and the explosion and slurry crushing of the upper exhaust ring 16 to the middle region and the upper region of the coarse slurry drum 15 can be realized.
The invention realizes the generation of bubbles 20 through the nozzles 14 on the upper exhaust ring 16 and the lower exhaust ring 2, namely, the bubbles 20 are generated by the gas in the upper exhaust ring 16 and the lower exhaust ring 2 through the nozzles 14, and a large number of bubbles 20 can be generated by the design of the multiple nozzles 14 on the upper exhaust ring 16 and the lower exhaust ring 2, so that the explosion and slurry breaking efficiency of the bubbles 20 is improved.
The number of the upper nozzles 14 of the lower exhaust ring 2 is greater than that of the upper exhaust ring 16 nozzles 14, and the explosion crushing pulp in the lower area of the coarse crushing pulp cylinder 15 is reinforced through the design, namely, most of coarse crushing pulp 21 is accumulated at the lower end of the coarse crushing pulp cylinder 15 under the action of dead weight, and the design of the multiple nozzles 14 of the lower exhaust ring 2 can enable the coarse crushing pulp 21 to roll upwards in an upward area under the action of air flow, prevent the coarse crushing pulp 21 from accumulating and blocking in the Y-shaped filter 9, and ensure the explosion crushing pulp in the lower area to be uniform.
The longitudinal section of the fan-shaped pipe 13 is fan-shaped, and the angle of the fan-shape isa 1 At 120 DEG, the angle between the 2 nozzles 14 on the fan-shaped pipe 13a 2 60 deg..
The fan-shaped pipe 13 is arranged at the lower ends of the upper exhaust ring 16 and the lower exhaust ring 2, and 2 nozzles 14 with included angles are arranged on the fan-shaped pipe 13, so that the impact of explosion bubbles 20 on the upper exhaust ring 16 and the lower exhaust ring 2 can be prevented, the generation amount of the bubbles 20 can be increased, namely, the fan-shaped curved surface design of the fan-shaped pipe 13 can enable the bubbles 20 to move in a dispersed manner to two sides along the fan-shaped curved surface in the rising process, the bubbles 20 are prevented from directly impacting the upper exhaust ring 16 or the lower exhaust ring 2, and the bubbles 20 are prevented from being exploded at the upper exhaust ring 16 and the lower exhaust ring 2, so that the upper exhaust ring 16 and the lower exhaust ring 2 are protected; in addition, 2 nozzles 14 are arranged on the basis of the fan-shaped curved surface of the fan-shaped pipe 13, and the generation amount of bubbles 20 is increased by increasing the number of the nozzles 14, so that the explosion and slurry breaking efficiency of the bubbles 20 is improved.
Referring to fig. 6, the bubble heating device mainly comprises a heater 11, a wire 18, an upper heating ring 22 and a lower heating ring 29, wherein the wire 18 is led out from the heater 11, the wire 18 is respectively connected with the upper heating ring 22 and the lower heating ring 29, a protection tube 12 is arranged outside the wire 18, the protection tube 12 is respectively fixed on a coarse pulping barrel 15 through a support ring 33 and a protection tube buffer block 19, and a temperature sensor 17 is arranged on the protection tube 12 in the coarse pulping barrel 15; in operation, the temperature in the coarse pulping drum 15 is detected by the temperature sensor 17 and used for controlling the explosion and pulping efficiency, namely, the heating temperatures of the upper heating ring 22 and the lower heating ring 29 are controlled by detecting the temperature of the coarse pulping drum water 23, so that the solubility of the bubbles 20 is regulated, and the explosion rate and the explosion and pulping efficiency of the bubbles 20 are further controlled.
The upper heating ring 22 and the lower heating ring 29 are respectively composed of 3 circular pipes and 18 straight pipes, the 3 circular pipes are sequentially and radially distributed from inside to outside, the 18 straight pipes are respectively connected with adjacent circular pipes, and the 18 straight pipes are uniformly distributed in the circumferential direction in groups of 6.
The invention accelerates the early blasting of the air bubbles 20 by the air bubble heating device, namely, the temperature of the water 23 of the coarse pulp crushing cylinder is heated by the upper heating ring 22 and the lower heating ring 29 of the air bubble heating device, the solubility of the air bubbles 20 is forced to be reduced along with the increase of the water temperature, the air bubbles 20 are blasted rapidly, and the heating area of the coarse pulp crushing cylinder 15 can be enlarged by the designed upper heating ring 22 and lower heating ring 29.
Referring to fig. 7 and 8, the fine pulp generating device mainly comprises a Y-shaped filter 9, a fine pulp barrel 3 and a rotor 6, wherein the fine pulp barrel 3 is welded under a coarse pulp barrel 15, the Y-shaped filter 9 is mounted at the lower end of the coarse pulp barrel 15, the upper and lower ends of the Y-shaped filter 9 are respectively communicated with the coarse pulp barrel 15 and the fine pulp barrel 3, the rotor 6 is mounted at the inner side of the lower end of the fine pulp barrel 3, a motor 5 is arranged at the lower end of the rotor 6, fine pulp barrel water 7 and fine pulp 8 are arranged in the fine pulp barrel 3, and a fine pulp outlet 4 is arranged at the outer side of the lower end of the fine pulp barrel 3.
The Y-shaped filter 9 is of an annular funnel structure, the longitudinal section of the filter pipeline is of a Y shape, and the diameter of the section of the filter pipeline isd 5 And is also provided withd 5 = d 1 3, included angle between inclined filter pipeline and vertical filter pipelinea 3 The middle part of the upper end of the Y-shaped filter 9 is provided with an arc convex block 32 at 135 degrees.
The invention realizes secondary pulp crushing through the fine pulp generating device so as to realize fine pulp crushing and generate fine pulp, and when in operation, fine crushed aggregates 8 generated by the explosion of bubbles 20 in the coarse pulp crushing cylinder 15 enter the fine pulp crushing cylinder 3, and secondary pulp crushing is carried out under the drive of the inner rotor 6 of the fine pulp crushing cylinder 3, so that the fine crushed aggregates 8 are crushed again to generate finer crushed aggregates, and fine pulp crushing and fine pulp generation are achieved.
The invention realizes the filtration of crushed aggregates through the Y-shaped filter 9, and when in work, the size of the fine crushed aggregates 8 is controlled by setting a certain section diameter of a filtering pipeline, and the Y-shaped filter 9 with an annular funnel structure, namely a large inlet structure, can increase the entering filtering quantity of the fine crushed aggregates 8.
The invention prevents the particles from depositing through the arc convex blocks 32 on the Y-shaped filter 9, so that the fine particles 8 can timely pass through the Y-shaped filter 9 to enter the fine crushing pulp cylinder 3, namely, the arc convex blocks 32 enable the fine particles 8 not to deposit easily, for example, the fine particles 8 fall on the arc convex blocks 32, and the fine particles 8 can slide into the Y-shaped filter 9 along the arc convex blocks 32 easily to enter the fine crushing pulp cylinder 3.
Claims (1)
1. The pulping equipment based on the air blasting energy and used for secondary pulping mainly comprises a coarse pulp generating device, a bubble heating device and a fine pulp generating device, wherein main components of the bubble generating device and the bubble heating device are arranged in the coarse pulp generating device, and the fine pulp generating device is arranged right below the coarse pulp generating device; which is a kind ofIs characterized in that: the coarse pulp generating device mainly comprises a coarse pulp crushing cylinder, wherein 4 circumferentially uniformly distributed struts are arranged on the outer side of the lower end of the coarse pulp crushing cylinder, a coarse pulp outlet is formed in the inner side of the lower end of the coarse pulp crushing cylinder, and coarse crushed aggregates and coarse pulp crushing cylinder water are arranged in the coarse pulp crushing cylinder; the bubble generating device mainly comprises a bubble generator, a gas conveying pipe section A, a gas conveying pipe section B, a gas conveying pipe section C, a gas conveying pipe section D, an upper exhaust ring and a lower exhaust ring, wherein the gas conveying pipe section A, the gas conveying pipe section B, the gas conveying pipe section C and the gas conveying pipe section D are sequentially connected, the gas conveying pipe section A is connected with the bubble generator, the upper exhaust ring is connected with the gas conveying pipe section C, the lower exhaust ring is connected with the gas conveying pipe section D, the gas conveying pipe section A, the gas conveying pipe section C and the gas conveying pipe section D are respectively fixed on a coarse pulp crushing cylinder through supporting rings, the gas conveying pipe section B is fixed on the coarse pulp crushing cylinder through a buffer block of the gas conveying pipe section B, and a flow sensor is arranged at the upper end of the gas conveying pipe section B; the bubble heating device mainly comprises a heater, a wire, an upper heating ring and a lower heating ring, wherein the wire is led out by the heater, the wire is respectively connected with the upper heating ring and the lower heating ring, a protective tube is arranged outside the wire, the protective tube is respectively fixed on the coarse pulp crushing cylinder through a supporting ring and a protective tube buffer block, and a temperature sensor is arranged on the protective tube in the coarse pulp crushing cylinder; the fine pulp generating device mainly comprises a Y-shaped filter, a fine pulp barrel and a rotor, wherein the fine pulp barrel is welded under the coarse pulp barrel, the Y-shaped filter is arranged at the lower end of the coarse pulp barrel, the upper end and the lower end of the Y-shaped filter are respectively communicated with the coarse pulp barrel and the fine pulp barrel, the rotor is arranged at the inner side of the lower end of the fine pulp barrel, the lower end of the rotor is provided with a motor, fine pulp barrel water and fine crushed materials are arranged in the fine pulp barrel, and a fine pulp outlet is arranged at the outer side of the lower end of the fine pulp barrel; the diameter of the gas pipe section D isd 1 The diameter of the gas pipe section C isd 2 And is also provided withd 2 =2d 1 The diameter of the gas pipe section B isd 3 And is also provided withd 3 =4d 1 The diameter of the gas pipe section A isd 4 And is also provided withd 4 =8d 1 The method comprises the steps of carrying out a first treatment on the surface of the The upper exhaust ring consists of 3 circular pipes and 24 straight pipes, the 3 circular pipes are sequentially and radially distributed from inside to outside, the 24 straight pipes are respectively communicated and connected with adjacent circular pipes, and the 24 straight pipes are in a group of 8 and are uniformly distributed in the circumferential direction; the upper exhaust ringThe upper end is provided with 12 nozzles at equal intervals, the lower end is provided with 6 fan-shaped pipes at equal intervals, and each fan-shaped pipe is provided with 2 nozzles; the lower exhaust ring consists of 3 circular pipes and 36 straight pipes, the 3 circular pipes are sequentially and radially distributed from inside to outside, the 36 straight pipes are respectively communicated and connected with adjacent circular pipes, and the 36 straight pipes are in a group of 12 and are uniformly distributed in the circumferential direction; the upper end of the lower exhaust ring is provided with 14 nozzles at equal intervals, the lower end of the lower exhaust ring is provided with 7 fan-shaped pipes at equal intervals, and each fan-shaped pipe is provided with 2 nozzles; the longitudinal section of the fan-shaped pipe is fan-shaped, and the angle of the fan-shaped pipe isa 1 At 120 degrees, the included angle between 2 nozzles on the fan-shaped pipea 2 60 °; the upper heating ring and the lower heating ring are respectively composed of 3 circular pipes and 18 straight pipes, the 3 circular pipes are sequentially and radially distributed from inside to outside, the 18 straight pipes are respectively connected with adjacent circular pipes, and the 18 straight pipes are uniformly distributed in the circumferential direction in groups of 6; the Y-shaped filter is of an annular funnel structure, the longitudinal section of the filter pipeline is of a Y shape, and the diameter of the section of the filter pipeline isd 5 And is also provided withd 5 =d 1 3, included angle between inclined filter pipeline and vertical filter pipelinea 3 The upper middle part of the Y-shaped filter is provided with an arc convex block with the angle of 135 degrees.
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| CN107059451B (en) * | 2017-06-22 | 2023-06-30 | 济南大学 | Classification and open motion type pulping equipment |
| CN110904707B (en) * | 2019-12-12 | 2021-11-02 | 山东沂南园区开发建设有限公司 | Continuous hydraulic pulper |
| CN112030587B (en) * | 2020-09-10 | 2021-03-23 | 株洲市红三角包装印刷有限责任公司 | Method for recycling printed paper product |
| CN112681000B (en) * | 2020-12-25 | 2022-11-25 | 东莞顺裕纸业有限公司 | Production method for reconstructing corrugated medium paper by using waste paper and improving pulping process |
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