Integrated slurry and porridge mixer and oxidation and polymerization reduction system using integrated slurry and porridge mixer
The integrated porridge mixer design solves the problems of uneven mixing of porridge and alkali solution and large equipment footprint, achieving uniform mixing and automated production, and reducing production costs.
Patent Information
- Application Number
- CN202423173648.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In current viscose staple fiber production, uneven mixing of pulp and alkali solution affects product quality, and the mixing equipment occupies a large area.
An integrated porridge mixer is used, including a tubular mixer and a vertical mixing tank. It is equipped with a spiral stirring mechanism and a spray system. The input of alkali is controlled by an alkali supply pipeline. Combined with the spiral stirring and spray structure, uniform mixing is achieved. In conjunction with the vertical mixing tank, porridge of the desired concentration is formed.
It achieves uniform mixing of alkali solution and fiber, reduces production costs, reduces equipment footprint, supports automated production, and improves mixing efficiency and product quality.
Smart Images
Figure CN223669081U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to viscose staple production equipment technical field, concretely relates to integrated porridge mixer and use the oxidation of the integrated porridge mixer system of falling polymerization. BACKGROUND
[0002] At present, viscose staple market competition is fierce, in addition to energy, environmental protection, safety influence, the survival of relevant enterprises is more challenging. How to improve the market share in the fierce competition environment, under the premise of meeting environmental protection, safety production etc., improve product quality, reduce production cost, is particularly key.
[0003] In the process of producing cellulose fiber, the mixing of slurry and alkali liquor is involved. In the prior art, mixing tank, extruder and other equipment are used to mix slurry and alkali liquor, but uneven mixing of alkali liquor and slurry is prone to occur, which affects product quality. Some existing mixing equipment occupies a large area. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving the problems of uneven mixing of slurry and alkali liquor in the prior art, affecting product quality, and some existing mixing equipment occupying a large area.
[0005] In order to achieve the above-mentioned purpose of the invention, the technical scheme of the utility model is as follows:
[0006] The integrated slurry mixer comprises a tubular mixer and a vertical mixing barrel. A spiral stirring mechanism is installed in the tubular mixer. One end of the tubular mixer is provided with a feed inlet I. The other end is provided with a discharge outlet I. The discharge outlet I is communicated with a feed inlet II of the vertical mixing barrel. The lower part of the vertical mixing barrel is provided with a discharge outlet II. A stirring mechanism with a plurality of stirring blades is arranged in the vertical mixing barrel. A plurality of alkali liquor inlets are arranged on the tubular mixer. The tubular mixer is connected with an alkali liquor supply pipeline through the alkali liquor inlets.
[0007] Further, the outer shell of the tubular mixer comprises a bottom shell, a mixer upper cover and a spraying upper cover. The mixer upper cover and the spraying upper cover are reversibly connected with the bottom shell.
[0008] Further, a spraying pipe is arranged on the bottom shell at the spraying upper cover. A plurality of spray heads are arranged on the spraying pipe. The spraying pipe is connected with the alkali liquor inlets and then connected with the alkali liquor supply pipeline.
[0009] Further, polytetrafluoroethylene bushings are arranged on the outer surfaces of the bottom shell, the mixer upper cover and the spraying upper cover.
[0010] Further, an intermediate support is arranged in the middle part of the spiral stirring mechanism.
[0011] Further, the alkali liquor inlets comprise 3-5.
[0012] Further, the tail of the tubular mixer is provided with a rear end sealing structure.
[0013] Further, the vertical mixing barrel is provided with a stirring mechanism with 4-8 layers of stirring blades.
[0014] Further, the discharge port II at the bottom of the vertical mixing barrel is connected with a screw pump.
[0015] An oxidation depolymerization system comprises an immersion barrel I, a press, an integrated pulp slurry mixer as described above, and an oxygen-alkali reaction kettle connected in sequence,
[0016] The immersion barrel is connected with an alkali solution supply pipeline, and the immersion barrel is connected with the inlet of the press through a pipeline I; the material outlet of the press is in communication with the feed inlet I of the integrated pulp slurry mixer; the discharge outlet II of the integrated pulp slurry mixer is connected with the oxygen-alkali reaction kettle through a pipeline II; the pipeline II is provided with a steam pipeline and an oxygen pipeline; the steam pipeline is connected with a steam supply pipeline; and the oxygen pipeline is connected with an oxygen supply pipeline.
[0017] The utility model has the advantages of:
[0018] First, in the utility model, an integrated pulp slurry mixer is innovatively provided; the fibers treated by the front-end press and the pulverizer are input into the solid-phase fibers from the feed inlet of the integrated pulp slurry mixer; the alkali solution is uniformly added into the tubular mixer through the alkali solution supply pipeline; under the action of the spiral stirring mechanism, the fibers and the alkali solution are mixed and delivered to the vertical mixing barrel, forming the pulp slurry with the expected alkali solution concentration. Such a structure facilitates the control of the input of the appropriate amount of alkali solution into the integrated pulp slurry mixer through the alkali solution supply pipeline (a flowmeter and an electromagnetic valve are arranged on the alkali solution supply pipeline, and the flowmeter and the electromagnetic valve are respectively connected with a controller for control), can realize automatic production, reduces the working intensity of the operating personnel, and has high material mixing efficiency; in addition, such a structure can also achieve the effect of delivering the materials.
[0019] Second, in the utility model, the external shell of the tubular mixer comprises a bottom shell, an upper cover of the stirrer, and a spraying upper cover; the upper cover of the stirrer and the spraying upper cover are reversibly connected with the bottom shell; the external shell of the tubular mixer is composed of the bottom shell and the multiple upper covers, which facilitates the observation of the material state in the pipeline and the cleaning of the device.
[0020] Third, in the utility model, the bottom shell at the spraying upper cover is provided with a spraying pipeline, a plurality of nozzles are arranged on the spraying pipeline, the spraying pipeline is connected with the alkali solution inlet and then connected with the alkali solution supply pipeline, the alkali solution in the alkali solution supply pipeline is uniformly added into the tubular mixer through the nozzles, and the fibers are rapidly and uniformly mixed with the alkali solution.
[0021] Four, in the utility model, the outer surface of bottom shell, mixer upper cover and spray upper cover is equipped with polytetrafluoroethylene bushing, has the effect of heat resistance, corrosion resistance.
[0022] Five, in the utility model, the middle part of spiral stirring mechanism is equipped with middle support for supporting spiral stirring mechanism. Spiral stirring mechanism preferably adopts multi-section spiral structure assembly. The tail part of tubular mixer is equipped with rear end sealing structure, avoids material moving out from the tail part connection (the connection part of support shaft of spiral stirring mechanism and bottom shell) when equipment runs.
[0023] Six, in the utility model, the discharge port II of vertical mixing barrel bottom is connected with screw pump, and the internal structure of screw pump is preferably double-head symmetrical spiral structure pump, can be through high-speed rotation to stir and transport porridge.
[0024] Seven, in the utility model, an oxidation depolymerization system using integrated porridge mixer is further proposed, replaces the original old drum equipment to carry out depolymerization treatment to cellulose. Through three-phase mixing of oxygen + lye + cellulose, and under the conditions of certain pressure, time and temperature, the degree of polymerization of cellulose is reduced in oxygen-alkali reaction kettle, the traditional old drum is replaced to reduce the degree of polymerization of alkali cellulose, the loss of alkali cellulose in production process is reduced, the production cost is reduced, and the technical problems of large occupation area and high energy consumption of traditional old process system are solved. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is the structure diagram of integrated porridge mixer.
[0026] Figure 2 It is the three-dimensional structure diagram of integrated porridge mixer.
[0027] Figure 3 It is Figure 2 The enlarged view of A of
[0028] Figure 4 It is the structure diagram of screw pump.
[0029] Figure 5 It is the structure diagram of another embodiment of integrated porridge mixer.
[0030] Figure 6 It is the structure diagram of an oxidation depolymerization system.
[0031] Wherein, 1, tubular mixer; 2, vertical mixing barrel; 3, spiral stirring mechanism; 4, stirring mechanism; 5, lye supply pipeline; 6, spray pipe; 7, spray head; 8, intermediate support; 9, screw pump; 10, immersion barrel; 11, press; 12, oxygen lye reaction kettle; 13, pipeline I; 14, pipeline II; 15, steam pipeline; 16, oxygen pipeline; 17, steam supply pipeline; 18, oxygen supply pipeline; 19, crushing mechanism; 1.1, feed inlet I; 1.2, discharge outlet I; 1.3, lye inlet; 1.4, bottom shell; 1.5, mixer upper cover; 1.6, spray upper cover; 1.7, rear end sealing structure; 2.1, feed inlet II; 2.2, discharge outlet II. DETAILED DESCRIPTION
[0032] The utility model will be further explained in detail in connection with examples, but the implementation mode of the utility model is not limited to this.
[0033] Example 1
[0034] This embodiment is the most basic implementation, and the integrated pulp mixer relates to viscose staple production equipment technical field, and reference Figure 1 , including tubular mixer 1 and vertical mixing barrel 2, spiral stirring mechanism 3 is installed in tubular mixer 1, and tubular mixer 1 one end is equipped with feed inlet I 1.1;The other end is equipped with discharge outlet I 1.2, and discharge outlet I 1.2 is communicated with the feed inlet II 2.1 of vertical mixing barrel 2, and the lower part of vertical mixing barrel 2 is equipped with discharge outlet II 2.2, and the stirring mechanism 4 of a plurality of layers of stirring blades is arranged in vertical mixing barrel 2, and a plurality of lye inlets 1.3 are arranged on tubular mixer 1, and tubular mixer 1 is connected with lye supply pipeline 5 through lye inlet 1.3.
[0035] The fiber after being processed by the front-end press 11 and the crusher is entered into the tubular mixer 1 from the feed inlet I 1.1 of the integrated pulp mixer, and the lye is uniformly added into the tubular mixer 1 through the lye supply pipeline 5, under the action of the spiral stirring mechanism 3, the fiber and the lye are mixed and transported to the vertical mixing barrel 2 direction, forming the pulp with the expected lye concentration, and then being discharged from the discharge outlet I 1.2 and entering into the vertical mixing barrel 2 from the feed inlet II 2.1, under the action of the stirring mechanism 4, the pulp and the lye are further mixed, and finally being discharged from the lower discharge outlet II 2.2 to the next process for further processing. The stirring mechanism 4 is preferably a spiral blade, which has the function of directional material conveying.
[0036] Example 2
[0037] This embodiment is further optimized on the basis of example 1, and the difference lies in that Figure 2The outer shell of the tubular mixer 1 comprises a bottom shell 1.4, a blender upper cover 1.5 and a spraying upper cover 1.6, both of which are reversibly connected with the bottom shell 1.4.
[0038] In this embodiment, an integrated porridge mixer with a preferred structure is provided, and the outer shell of the tubular mixer 1 is composed of a bottom shell 1.4 and a multi-section upper cover. This design can facilitate the observation of the material state in the pipeline and also facilitate the cleaning of the device.
[0039] Embodiment 3
[0040] Compared with embodiments 1-2, the difference lies in that Figure 2 , 3 A spraying pipe 6 is arranged on the bottom shell 1.4 at the spraying upper cover 1.6, and a plurality of spray heads 7 are arranged on the spraying pipe 6. The spraying pipe 6 is connected with the alkali inlet 1.3 and then connected with the alkali supply pipeline 5.
[0041] In this embodiment, the alkali in the alkali supply pipeline 5 is uniformly added into the tubular mixer 1 through the spray heads 7, so that the fibers are quickly and uniformly mixed with the alkali.
[0042] Embodiment 4
[0043] Compared with embodiments 1-3, the difference lies in that the outer surfaces of the bottom shell 1.4, the blender upper cover 1.5 and the spraying upper cover 1.6 are provided with polytetrafluoroethylene bushings, which have the functions of heat resistance and corrosion resistance.
[0044] Embodiment 5
[0045] Compared with embodiments 1-4, the difference lies in that the middle part of the spiral stirring mechanism 3 is provided with an intermediate support 8, and Figure 2 , 3 .
[0046] Embodiment 6
[0047] Compared with embodiments 1-5, the difference lies in that Figure 1 The alkali inlet 1.3 is preferably provided with 3-5 inlets.
[0048] Embodiment 7
[0049] Compared with embodiments 1-6, the difference lies in that the tail part of the tubular mixer 1 is provided with a rear end sealing structure 1.7, and Figure 2 This avoids the overflow of materials in the device.
[0050] Embodiment 8
[0051] The embodiment is different from the embodiments 1-7 in that the vertical mixing barrel 2 is provided with a stirring mechanism 4 with 4-8 layers of stirring blades.
[0052] Embodiment 9
[0053] The embodiment is different from the embodiments 1-8 in that the discharge port II 2.2 at the bottom of the vertical mixing barrel 2 is connected with a screw pump 9.
[0054] Embodiment 10
[0055] An oxidative depolymerization system comprises a dipping barrel 10, a press 11 and an integrated pulp slurry mixer as described above connected in sequence, and an oxygen-alkali reaction kettle 12.
[0056] The dipping barrel 10 is connected with an alkali solution supply pipeline 5, the dipping barrel 10 is connected with the inlet of the press 11 through pipeline I 13, the material outlet of the press 11 is communicated with the feed inlet I 1.1 of the integrated pulp slurry mixer, the discharge outlet II 2.2 of the integrated pulp slurry mixer is connected with the oxygen-alkali reaction kettle 12 through pipeline II 14, the pipeline II 14 is provided with a steam pipeline 15 and an oxygen pipeline 16, the steam pipeline 15 is connected with a steam supply pipeline 17, and the oxygen pipeline 16 is connected with an oxygen supply pipeline 18.
[0057] Embodiment 11
[0058] In order to make the public understand the scheme, the embodiment takes an oxidative depolymerization system using the integrated pulp slurry mixer with the optimal structure in the scheme as an example to further illustrate the scheme in combination with the drawings.
[0059] Reference Figure 6 The oxidative depolymerization system comprises a dipping barrel 10, a press 11 and an integrated pulp slurry mixer connected in sequence, and an oxygen-alkali reaction kettle 12, the dipping barrel 10 is connected with an alkali solution supply pipeline 5, the dipping barrel 10 is connected with the inlet of the press 11 through pipeline I 13, the material outlet of the press 11 is communicated with the feed inlet I 1.1 of the integrated pulp slurry mixer after being connected with a crushing mechanism 19, the discharge outlet II 2.2 of the integrated pulp slurry mixer is connected with the oxygen-alkali reaction kettle 12 through pipeline II 14, the pipeline II 14 is provided with a steam pipeline 15 and an oxygen pipeline 16, the steam pipeline 15 is connected with a steam supply pipeline 17, and the oxygen pipeline 16 is connected with an oxygen supply pipeline 18.
[0060] In this embodiment, the lye is sourced from the lye station, the steam is sourced from the steam station, and the oxygen is sourced from the oxygen station. The pulp raw material and the lye are added to the impregnation barrel 10, and after stirring, a pulp is formed. After the alkali cellulose is generated, it is pumped to the press 11 for pulp and alkali separation, wherein the lye enters the large production system for recycling. The back end of the press 11 is provided with a crushing mechanism 19. After the alkali cellulose passes through the crushing mechanism 19, it enters the integrated pulp mixer. After being treated by the integrated pulp mixer, the alkali and the alkali cellulose are sheared and mixed to form a pulp of the expected concentration, and then pumped to the oxygen-alkali reaction kettle 12. The integrated pulp mixer and the oxygen-alkali reaction kettle 12 are connected by pipeline II 14. The steam pipeline 15 and the oxygen pipeline 16 are arranged in the middle of the two pipelines, and steam and high-concentration gaseous oxygen can be input into the two pipelines respectively. The steam is input into the steam pipeline 15 through the steam supply pipeline 17 to heat the pulp. The oxygen is input into the oxygen pipeline 16 through the oxygen supply pipeline 18 to provide the necessary oxygen supply for the cellulose depolymerization reaction, which facilitates the chemical reaction.
[0061] In this embodiment, the pump is a screw pump 9, which has a double-head spiral structure inside. By high-speed rotation, self-suction and shearing force are formed. The self-suction drives the pulp to flow to the next process, and the shearing force can effectively mix the pulp to ensure uniformity.
[0062] Finally, the pulp enters the oxygen-alkali reaction kettle 12. The oxygen-alkali reaction kettle 12 can be provided with multiple layers of stirring structures according to requirements, and the steam, oxygen and pulp are mixed from bottom to top for oxygen-alkali reaction.
[0063] In this embodiment, referring to Figures 2-4 , the integrated pulp mixer includes a tubular mixer 1 and a vertical mixing barrel 2. The tubular mixer 1 is provided with a spiral stirring mechanism 3. One end of the tubular mixer 1 is provided with a feeding port I 1.1, and the other end is provided with a discharging port I 1.2. The discharging port I 1.2 is in communication with the feeding port II 2.1 of the vertical mixing barrel 2. The lower part of the vertical mixing barrel 2 is provided with a discharging port II 2.2.
[0064] In this embodiment, the vertical mixing barrel 2 is provided with a stirring mechanism 4 with multiple layers of stirring blades. Referring to Figure 5 , the tubular mixer 1 is provided with multiple lye inlets 1.3. The tubular mixer 1 is connected to the lye supply pipeline 5 through the lye inlets 1.3. The lye inlets 1.3 include three.
[0065] In this embodiment, the external shell of the tubular mixer 1 includes a bottom shell 1.4, a mixer upper cover 1.5 and a spraying upper cover 1.6. The mixer upper cover 1.5 and the spraying upper cover 1.6 are reversibly connected to the bottom shell 1.4. Referring to Figure 2 , 3 .
[0066] In this embodiment, the bottom shell 1.4 at the spraying upper cover 1.6 is provided with a spraying pipe 6, the spraying pipe 6 is provided with a plurality of spray heads 7, and the spraying pipe 6 is connected to the alkali liquid inlet 1.3 and then connected to the alkali liquid supply pipeline 5.
[0067] In this embodiment, the outer surfaces of the bottom shell 1.4, the upper cover of the stirrer 1.5 and the spraying upper cover 1.6 are provided with polytetrafluoroethylene bushings.
[0068] In this embodiment, the middle part of the spiral stirring mechanism 3 is provided with an intermediate support 8. The tail part of the tubular mixer 1 is provided with a rear end sealing structure 1.7. The vertical mixing barrel 2 is provided with a stirring mechanism 4 with 6 layers of stirring blades.
[0069] In this embodiment, the tubular mixer 1 of the integrated slurry porridge mixer is provided with a plurality of alkali liquid inlets 1.3, the tubular mixer 1 is connected to the alkali liquid supply pipeline 5 through the alkali liquid inlets 1.3, a flow meter and an electromagnetic valve can be designed on the alkali liquid supply pipeline 5 to controllably input alkali liquid; the inside of the tubular mixer 1 is matched with the spraying pipe 6 and the spray head 7 to uniformly supplement the slurry porridge with alkali liquid, and after mixing, the slurry porridge is continuously sent to the spiral mixer vertical mixing barrel 2 for further processing until the industrial production requirements are met.
[0070] Compared with the traditional aging drum depolymerization process, the oxidation depolymerization system in this embodiment has a significantly reduced equipment occupation area, is easy to clean, is more convenient to use, and is easier to realize automatic production.
Claims
1. An integrated batter and dough mixer characterized by: It comprises a tubular mixer (1) and a vertical mixing barrel (2), the tubular mixer (1) is internally provided with a spiral stirring mechanism (3), One end of the tubular mixer (1) is provided with a feeding port I (1.1), the other end is provided with a discharging port I (1.2), the discharging port I (1.2) is communicated with a feeding port II (2.1) of the vertical mixing barrel (2), the lower part of the vertical mixing barrel (2) is provided with a discharging port II (2.2), the vertical mixing barrel (2) is internally provided with a stirring mechanism (4) with a plurality of layers of stirring blades, a plurality of lye inlets (1.3) are arranged on the tubular mixer (1), the tubular mixer (1) is connected with a lye supply pipeline (5) through the lye inlets (1.3).
2. The integrated gruel mixer according to claim 1, characterized by: The outer shell of the tubular mixer (1) comprises a bottom shell (1.4), a mixer upper cover (1.5) and a spraying upper cover (1.6), the mixer upper cover (1.5) and the spraying upper cover (1.6) are reversibly connected with the bottom shell (1.4).
3. The integrated gruel mixer according to claim 2, characterized by: A spraying pipe (6) is arranged on the bottom shell (1.4) at the spraying upper cover (1.6), a plurality of spray heads (7) are arranged on the spraying pipe (6), the spraying pipe (6) is connected with the lye supply pipeline (5) after being connected with the lye inlets (1.3).
4. The integrated gruel mixer of claim 3, wherein: The outer surfaces of the bottom shell (1.4), the mixer upper cover (1.5) and the spraying upper cover (1.6) are provided with polytetrafluoroethylene bushings.
5. The integrated gruel mixer of claim 1, wherein: The middle part of the spiral stirring mechanism (3) is provided with an intermediate support (8).
6. The integrated gruel mixer of claim 1, wherein: The lye inlets (1.3) comprise 3-5.
7. The integrated gruel mixer of claim 1, wherein: The tail part of the tubular mixer (1) is provided with a rear end sealing structure (1.7).
8. The integrated gruel mixer of claim 1, wherein: The vertical mixing barrel (2) is internally provided with the stirring mechanism (4) with 4-8 layers of stirring blades.
9. The integrated gruel mixer of claim 1, wherein: The discharging port II (2.2) at the bottom of the vertical mixing barrel (2) is connected with a screw pump (9).
10. An oxidative depolymerization system, comprising: It comprises an immersion barrel (10), a press (11) and the integrated porridge mixer as claimed in claim 1 connected in sequence, and an oxygen-alkali reaction kettle (12), The immersion barrel (10) is connected with the lye supply pipeline (5), the immersion barrel (10) is connected with the inlet of the press (11) through a pipeline I (13), the material outlet of the press (11) is communicated with the feeding port I (1.1) of the integrated porridge mixer, the discharging port II (2.2) of the integrated porridge mixer is connected with the oxygen-alkali reaction kettle (12) through a pipeline II (14), the pipeline II (14) is provided with a steam pipeline (15) and an oxygen pipeline (16), the steam pipeline (15) is connected with a steam supply pipeline (17), and the oxygen pipeline (16) is connected with an oxygen supply pipeline (18).