Granulator with heat insulation structure

Abstract

The utility model provides a kind of rocking granulator with heat insulation structure, shell structure, the top of shell structure inner wall is provided with air buffer structure, the bottom of shell structure inner wall is provided with heating structure;Air buffer structure includes shell protective shell, the inside of shell protective shell is provided with air buffer bin, the inside of air buffer bin is provided with air buffer layer.The utility model design is reasonable, through air buffer structure heat insulation structure design, shell structure temperature can be controlled in 25-30 ℃ (and room temperature temperature difference ≤5 ℃), completely eliminate operator scald risk;While heat loss rate reduces to 3% or less, compared with existing equipment energy consumption reduces 12%-15%;Air buffer structure and heating structure are blocked respectively heat radiation, heat conduction and heat convection, machine temperature fluctuation amplitude is controlled within ±0.5 ℃, fabric rock grain uniformity is promoted to 98% or more, reduce the fabric defective rate caused by temperature fluctuation.

Description

Technical Field

[0001] This utility model mainly relates to the field of textile machinery, specifically to a pellet mill with a heat insulation structure. Background Technology

[0002] In the textile industry, tassel mills use a high-speed rotating agitator inside the machine to rub and knead the fabric under heating conditions, creating a uniform fleece structure on the fabric surface. One of the core requirements is maintaining a stable heating environment inside the machine. Currently, most tassel mills use electric heating elements or hot air to achieve this heating function, and their insulation designs generally have deficiencies.

[0003] Simple insulation structure: Existing equipment mostly adopts a design of single-layer metal shell + internal thin asbestos / glass wool insulation layer. The insulation layer has no functional division of layers, and heat can easily be conducted to the outside through the shell, resulting in the shell temperature often reaching 40-60℃. This not only poses a risk of burns to operators due to accidental contact, but also causes 15%-20% heat loss, increasing additional energy consumption.

[0004] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] This invention provides a pelletizer with a heat-insulating structure to solve the technical problems existing in the background art.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: a granulator with a heat insulation structure, comprising an outer shell structure, an air buffer structure provided at the top of the inner wall of the outer shell structure, and a heating structure provided at the bottom of the inner wall of the outer shell structure;

[0009] An air buffer structure includes an outer protective shell, an air buffer chamber inside the outer protective shell, and an air buffer layer inside the air buffer chamber.

[0010] Furthermore, the outer shell structure includes a shell body, a partition is provided in the middle of the shell body, a first installation compartment is provided on the top of the shell body, fitting strips are provided on both sides of the top of the first installation compartment, and a second installation compartment is provided on the bottom of the inner wall of the shell body.

[0011] Furthermore, the heating structure includes a first heat insulation layer, second heat insulation layers are provided on both sides of the top of the first heat insulation layer, a third heat insulation layer is provided between the two second heat insulation layers, and an electric heating tube is provided on the top of the third heat insulation layer.

[0012] Furthermore, the number of electric heating tubes is set to multiple, and the multiple electric heating tubes are distributed at equal intervals on the top of the third heat insulation layer.

[0013] 3. Beneficial effects:

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0015] This utility model, through its air buffer structure and heat insulation structure design, allows the shell structure temperature to be controlled at 25-30℃ (temperature difference from room temperature ≤5℃), completely eliminating the risk of burns to operators; at the same time, the heat loss rate is reduced to below 3%, and energy consumption is reduced by 12%-15% compared to existing equipment.

[0016] The air buffer structure and heating structure respectively block heat radiation, heat conduction and heat convection, and the temperature fluctuation range inside the machine is controlled within ±0.5℃. The fabric sway uniformity is improved to more than 98%, reducing the fabric defect rate caused by temperature fluctuation.

[0017] The air buffer structure and heating structure are made of high-temperature resistant and anti-aging composite insulation materials. The service life can reach 3-5 years in an environment of 80-120℃. Compared with the existing equipment, the insulation layer replacement cycle is extended by 5-6 times, reducing the number of downtime maintenance and increasing the effective production time by about 200-300 hours per year. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the outer shell of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the air buffer structure of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the heating structure of this utility model.

[0022] Figure label:

[0023] 1. Outer shell structure; 101. Shell body; 102. Partition; 103. First mounting compartment; 104. Adhesive strip; 105. Second mounting compartment; 2. Air buffer structure; 201. Outer shell protective shell; 202. Air buffer compartment; 203. Air buffer layer; 3. Heating structure; 301. First heat insulation layer; 302. Second heat insulation layer; 303. Third heat insulation layer; 304. Electric heating element. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example

[0029] See attached document Figure 1-4A granulator with a heat-insulating structure includes an outer shell structure 1, an air buffer structure 2 provided at the top of the inner wall of the outer shell structure 1, and a heating structure 3 provided at the bottom of the inner wall of the outer shell structure 1.

[0030] Air buffer structure 2 includes an outer protective shell 201, an air buffer chamber 202 is provided inside the outer protective shell 201, and an air buffer layer 203 is provided inside the air buffer chamber 202.

[0031] Furthermore, the outer shell structure 1 includes a shell body 101, a partition 102 is provided in the middle of the shell body 101, a first installation compartment 103 is provided on the top of the shell body 101, and fitting strips 104 are provided on both sides of the top of the first installation compartment 103. A second installation compartment 105 is provided at the bottom of the inner wall of the shell body 101.

[0032] Furthermore, the heating structure 3 includes a first heat insulation layer 301, second heat insulation layers 302 are provided on both sides of the top of the first heat insulation layer 301, a third heat insulation layer 303 is provided between the two second heat insulation layers 302, and an electric heating tube 304 is provided on the top of the third heat insulation layer 303. The number of electric heating tubes 304 is set to multiple, and the multiple electric heating tubes 304 are evenly distributed on the top of the third heat insulation layer 303. The outer shell structure 1 is the core working area of ​​the granulator. The shell body 101 is made of 304 stainless steel with a wall thickness of 5mm. The inner wall is provided with spiral guide ribs with a height of 8mm and a pitch of 150mm to guide the fabric to turn evenly. The electric heating tube 304 with a power of 2kW / meter is wound inside the shell body 101 and is made of nickel-chromium alloy. The electric heating tube 304 is wrapped with the third heat insulation layer 303.

[0033] First heat insulation layer 301: A nano-zirconia ceramic coating with a thickness of 0.8 mm is sprayed on the outer surface of the electric heating tube 304. The reflectivity is ≥95%, which can block the heat radiation generated by the electric heating tube 304.

[0034] The third insulation layer 303: uses aerogel felt with a density of 150 kg / m³. 3 With a thermal conductivity of ≤0.018W / m·K and a thickness of 20mm, it is bonded to the first insulation layer 301 with a high-temperature resistant adhesive that can withstand temperatures above 200℃ to block heat conduction.

[0035] The second insulation layer 302 is made of closed-cell foam glass with a porosity of ≥90%, a water absorption rate of ≤0.5%, and a thickness of 30mm. It is spliced ​​and installed on the outside of the third insulation layer 303. The splice is sealed with high-temperature resistant sealant with a temperature resistance of 180℃ or higher to prevent heat loss caused by air convection.

[0036] Outer shell structure 1: cold-rolled steel plate, wall thickness 3mm, inner and outer coating thicknesses are 80μm and 60μm respectively, and the air buffer chamber 202 is 10mm wide.

[0037] Work process:

[0038] Start the granulator, set the target temperature of the inner heating cylinder to 100℃ in the control system, and start heating the 304 electric heating tube.

[0039] When the temperature inside the cylinder reaches 100℃, the temperature sensor 11a sends a feedback signal, and the control system maintains the power of the electric heating tube 304 stable.

[0040] Results of the effectiveness test:

[0041] Heat insulation effect: The outer shell temperature is stable at 26-28℃, with a temperature difference of ≤3℃ from room temperature, eliminating the risk of burns;

[0042] Temperature stability: The temperature fluctuation range inside the drum is ±0.3℃, the uniformity of fabric shaking reaches 99%, and the defect rate is 0.8%.

[0043] Energy consumption: After 8 hours of continuous operation, the total power consumption is 30.2 kWh, which is 15.2% lower than that of ordinary granulator of the same specifications;

[0044] Heat recovery: Approximately 5.2 kWh of heat is recovered within 8 hours, which can meet the winter heating needs of a 20㎡ workshop and save approximately 5.2 kWh of heating energy.

[0045] Durability: After 3000 hours of continuous operation in a simulated 120℃ high-temperature environment, the insulation layer showed no signs of aging or peeling, and the insulation performance degradation rate was only 2.1%.

[0046] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A granulator with a heat-insulating structure, characterized in that: include The outer shell structure (1) has an air buffer structure (2) at the top of the inner wall of the outer shell structure (1) and a heating structure (3) at the bottom of the inner wall of the outer shell structure (1). An air buffer structure (2) includes an outer protective shell (201), an air buffer chamber (202) is provided inside the outer protective shell (201), and an air buffer layer (203) is provided inside the air buffer chamber (202).

2. A granulator with a heat-insulating structure according to claim 1, characterized in that: The outer shell structure (1) includes a shell body (101), a partition (102) is provided in the middle of the shell body (101), a first installation compartment (103) is provided on the top of the shell body (101), and fitting strips (104) are provided on both sides of the top of the first installation compartment (103). A second installation compartment (105) is provided at the bottom of the inner wall of the shell body (101).

3. A granulator with a heat-insulating structure according to claim 1, characterized in that: The heating structure (3) includes a first heat insulation layer (301), a second heat insulation layer (302) is provided on both sides of the top of the first heat insulation layer (301), a third heat insulation layer (303) is provided between the two second heat insulation layers (302), and an electric heating tube (304) is provided on the top of the third heat insulation layer (303).

4. A granulator with a heat-insulating structure according to claim 3, characterized in that: The number of electric heating tubes (304) is set to multiple, and the multiple electric heating tubes (304) are distributed at equal intervals on the top of the third heat insulation layer (303).

Images