Screening device used after breeding of hermetia illucens larvae

Abstract

The utility model provides a screening device used after breeding of hermetia illucens larvae. The screening device used after breeding of hermetia illucens larvae comprises a machine frame, a main shaft, a speed reducer motor, an inner-layer screen, a middle screen, an outer-layer screen, an inner-layer discharging groove, a middle discharging groove, a dust remover, a feeding hopper and a draught fan. Wherein the main shaft is provided with a supporting sleeve and a screen support and is used for supporting the screen, the screen is provided with three layers of screens from inside to outside, the diameters of the screens are gradually increased, and the diameters of meshes are gradually reduced. The machine has the advantages that (1) the machine has multiple purposes, and the cost is reduced; (2) different sieved materials are obtained through three layers of sieves; and (3) black water screened by the three layers of screens is combined with a specific gravity screen in the market after most impurities are removed, so that black soldier flies with better purity can be obtained.

Description

Technical Field

[0001] The utility model relates to the field of insect breeding, in particular to a screening and separation stage after the breeding of black soldier flies is completed. Background Art

[0002] Black soldier flies, saprophytic insects of the family Solenopsis, can feed on livestock and poultry manure and kitchen waste, and can produce high-value insect protein feed. The use of other materials such as food waste and livestock and poultry manure to breed black soldier flies has become a conventional process for treating waste such as food waste and livestock and poultry manure, and turning waste into treasure. In the process of ecological treatment of kitchen waste and poultry and poultry manure by black soldier flies, due to incomplete classification of food waste and livestock and poultry manure, there are many foreign substances that black soldier flies cannot eat, and there are many impurities; coupled with the imperfect breeding process environment, such as the humidity of the material after breeding, this puts forward higher requirements for the screening and separation of black soldier flies after breeding; the screening equipment and processes currently used in the market have various problems such as: incomplete screening, many impurities mixed in black soldier flies after screening; low screening efficiency, etc., if this affects the economic benefits of black soldier flies.

[0003] At present, screening on the market is divided into fine screening and specific gravity screening. Fine screening and specific gravity screening are two different screening methods. Fine screening is a method of separating materials by the size of the mesh aperture, which is usually used to grade or sort granular materials. It can choose different mesh aperture sizes according to needs to achieve the desired separation effect, such as: vibrating screen, rolling screen. Specific gravity screening is a method of separation by material density differences. It usually uses specially designed screens and vibration mechanisms to make high-density materials settle to the bottom and low-density materials are thrown out. Specific gravity screening is mainly used for density sorting or impurity removal of granular materials. Therefore, there are great differences between fine screening and specific gravity screening in principle, application scenarios and operation methods, and most of the screening methods on the market are adopted.

[0004] The utility model is a device for solving the problems of low screening efficiency, incomplete screening, incomplete separation of black soldier flies and impurities in the screening and separation stage after breeding black soldier flies larvae, using single equipment and single process, and reducing the leakage of black soldier flies. Utility Model Content

[0005] Based on the problems existing in the prior art, the purpose of the utility model is to provide a device for screening and separating black soldier fly larvae, which can solve the problems of low efficiency and incomplete screening of existing black soldier flies, and the inability to completely separate black soldier flies from impurities, reduce the number of black soldier flies leaking, and greatly improve the production efficiency of black soldier flies.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] 1. A screening device for black soldier fly larvae after breeding, characterized in that it comprises: a frame (1), a main shaft (2), a reducer motor (3), an inner screen (4), an intermediate screen (5), an outer screen (6), an inner discharge trough (7), an intermediate discharge trough (8), a dust remover (9), a feed hopper (10), and a fan (11)

[0008] The reducer motor (3) is fixedly mounted in front of the frame (1); a universal seat bearing (3.1) is fixedly mounted at the front and rear of the frame (1) for fixing the main shaft (2); a universal coupling (3.2) is mounted at the front end of the main shaft (2) and connected to the reducer motor (3); the main shaft is driven to rotate by the reducer motor (3); support sleeves (2.1) are evenly spaced and mounted on the main shaft (2); the support sleeves (2.1) are welded and fixed to the screen support (2.2); the screen support (2.2) fixes the inner screen (4), the middle screen (5), and the outer screen (6);

[0009] The inner screen (4), the middle screen (5) and the outer screen (6) are concentric and fixed into a whole by a screen support (2.2); the main shaft (2) passes through the screen; and the support sleeve (2.1) on the main shaft (2) is used to fix the screen support (2.2).

[0010] The inner screen (4), the middle screen (5) and the outer screen (6) have different diameters and different sieve hole diameters. The inner screen (4) has a sieve hole diameter of φ1, the middle screen (5) has a sieve hole diameter of φ4, and the outer screen (6) has a sieve hole diameter of φ2.5.

[0011] A dust remover (9) is installed in the length direction and the side of the outer screen, and is connected to a pulley (2.3) on the main shaft (2) through a pulley (9.1) at one end thereof. When the main shaft (2) is driven to rotate by the reducer motor (3), the dust remover also rotates at the same time, and the belt (9.2) on the dust remover whips the outer screen (6), so that the mesh of the outer screen (6) can be prevented from being blocked.

[0012] An inner layer discharge chute (7) is provided at the discharge end of the inner layer screen, and is fixed to the frame (1);

[0013] The discharge end of the intermediate screen (5) is also provided with an intermediate discharge trough (8), which is also fixed to the frame (1).

[0014] A fan (11) is installed at the feeding end of the inner screen (4) to quickly remove light substances in the material.

[0015] 2. The screening device for the rearing of black soldier fly larvae preferably adopts a three-layer woven screen with different diameters and lengths.

[0016] 3. The screening device for black soldier fly larvae after breeding preferably uses different sieve hole diameters, the inner sieve (4) sieve hole diameter is φ10, the middle sieve (5) sieve hole diameter is φ4, and the outer sieve (6) sieve hole diameter is φ2.5.

[0017] 4. It is preferred that the reducer motor (1) be a variable frequency motor.

[0018] 5. Preferably, the screen (4), (5), (6) is a cylindrical woven filter screen.

[0019] 6. The screens (5), (6), and (7) are installed on the frame (1) at an inclination of 6-8 degrees.

[0020] 7. The utility model provides a screening device for black soldier fly larvae after breeding, comprising the following steps:

[0021] Step 1, start the reducer motor (3), and the reducer motor (3) drives the main shaft (2) to rotate;

[0022] Step 2, adjusting the speed of the reducer motor (3) so that the speed of the screen (4) (5) (6) matches the feed amount to achieve the best screening effect;

[0023] The utility model provides a screening device for black soldier fly larvae after breeding, which has the following advantages:

[0024] 1. One machine for multiple uses reduces costs;

[0025] 2. Through three layers of screens, different sieves are obtained; BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 , which is a schematic diagram of the overall structure of the screening device for breeding black soldier fly larvae provided by the utility model;

[0027] Figure 2 , a schematic diagram of the structure of the three-layer screen installation provided by the utility model;

[0028] Figure 3 , a schematic diagram of the structure of the main shaft provided by the utility model; DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, 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 used to limit the present invention.

[0030] The utility model provides a screening device for breeding black soldier fly larvae, which is applied to the screening of breeding black soldier fly larvae in the environmental protection industry. It is a solid separation method with high screening efficiency and can obtain black soldier flies with less impurities.

[0031] Reference Figure 1 The device for screening black soldier fly larvae after breeding comprises a frame (1), a main shaft (2), a reducer motor (3), an inner screen (4), an intermediate screen (5), an outer screen (6), an inner discharge trough (7), an intermediate discharge trough (8), a dust collector (9), a feed hopper (10), and a fan (11).

[0032] A speed reducer motor (3) is fixedly installed in front of the frame (1), and the motor adopts a variable frequency motor; the front and rear ends of the main shaft (2) are installed with seat bearings (3.2), which are fixed on the frame (1); a coupling (3.1) is provided at the front end of the main shaft to connect it with the speed reducer motor (3), and when the speed reducer motor (3) rotates, the main shaft (2) and the inner screen (4), the middle screen (5), and the outer screen (6) fixed on the main shaft (2) are driven to rotate together.

[0033] refer to Figure 2 :The screen (4) (5) (6) is fixed to the screen support (2.2), and the screen support (2.2) is fixed to the support sleeve (2.1) on the main shaft;

[0034] refer to Figure 3 : A support sleeve (2.1) is welded and fixed on the main shaft (2), and the support sleeve (2.1) fixes the screen support (2.2);

[0035] The present invention provides a screening device for black soldier fly larvae after breeding, which has the following special designs:

[0036] 1. The screen adopts three layers, one machine has multiple uses.

[0037] 2. Simple structure, easy to maintain and install.

[0038] 3. The diameters of the screen holes vary.

[0039] 4. The motor adopts variable frequency motor with adjustable speed.

[0040] 6. The screen is cylindrical, which is easy to clean.

[0041] The utility model also provides a screening device for black soldier fly larvae after breeding, comprising the following steps:

[0042] Step 1, start the reducer motor (3), and the reducer motor (3) drives the main shaft (2) to rotate;

[0043] Step 2, adjusting the speed of the reducer motor (3) so that the speed of the screen (4) (5) (6) matches the feed amount to achieve the best screening effect;

[0044] The screening device for black soldier fly larvae after breeding provided by the present invention has the following advantages:

[0045] 1. Specially designed for screening black soldier flies, it has the best equipment utilization and the lowest spindle speed (13-20 rpm).

[0046] 2. Few moving parts.

[0047] 3. The equipment can run continuously for 24 hours.

[0048] 4. Low investment, compact structure and space saving.

[0049] 5. Simple technology and reliable operation.

[0050] 6. No vibration, no noise, fully enclosed structure, no pollution.

[0051] 7. Easy to maintain.

[0052] 8. The screening process provided has good screening effect.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention.

Claims

1. A screening device for black soldier fly larvae after breeding, characterized in that: include: Frame (1), main shaft (2), reducer motor (3), inner screen (4), middle screen (5), outer screen (6), inner discharge chute (7), middle discharge chute (8), dust collector (9), feed hopper (10), fan (11); The reducer motor (3) is fixedly installed in front of the frame (1); universal seat bearings (3.1) are fixedly installed at the front and rear of the frame (1) for fixing the main shaft (2); a universal coupling (3.2) is installed at the front end of the main shaft (2) to connect with the reducer motor (3), and the main shaft is driven to rotate by the reducer motor (3); support sleeves (2.1) are evenly installed on the main shaft (2); the support sleeves (2.1) are welded and fixed to the screen support (2.2); the screen support (2.2) fixes the inner screen (4), the middle screen (5), and the outer screen (6); The inner screen (4), the middle screen (5), and the outer screen (6) are concentric and fixed into a whole by a screen support (2.2); the main shaft (2) passes through the screen, and the support sleeve (2.1) on the main shaft (2) is used to fix the screen support (2.2); The inner screen (4), the middle screen (5) and the outer screen (6) have different diameters and different sieve hole diameters. The inner screen (4) has a sieve hole diameter of φ10, the middle screen (5) has a sieve hole diameter of φ4, and the outer screen (6) has a sieve hole diameter of φ2.

5. That is, after the black soldier fly larvae are cultured, the screening device divides the material into four parts: ① impurities larger than 10 mm, ② impurities larger than 4 mm, ③ black soldier flies and impurities of 2.5 mm to 4 mm, and ④ impurities smaller than 2.5 mm. A dust remover (9) is installed in the length direction and side of the outer screen, and is connected to a pulley (9.1) on the main shaft (2) through a pulley (9.1) at one end thereof. When the main shaft (2) is driven to rotate by the reducer motor (3), the dust remover also rotates at the same time, and the belt (9.2) on the dust remover whips the outer screen (6), thereby preventing the mesh of the outer screen (6) from being blocked. An inner layer discharge chute (7) is provided at the discharge end of the inner layer screen, and is fixed to the frame (1); The discharge end of the intermediate screen (5) is also provided with an intermediate discharge trough (8) which is also fixed to the frame (1); A fan (11) is installed at the feeding end of the inner screen (4) to quickly remove light substances in the material.

2. The screening device for black soldier fly larvae after breeding according to claim 1, characterized in that: A three-layer screen is used with different diameters and lengths.

3. The screening device for black soldier fly larvae after breeding according to claim 1, characterized in that: The screening device for rearing black soldier fly larvae has different mesh diameters: the mesh diameter of the inner mesh (4) is φ10, the mesh diameter of the middle mesh (5) is φ4, and the mesh diameter of the outer mesh (6) is φ2.

5.

4. The screening device for black soldier fly larvae after breeding according to claim 1, characterized in that: The reducer motor (3) is a variable frequency motor.

5. The screening device for black soldier fly larvae after breeding according to claim 1, characterized in that: The screen (4) (5) (6) is a cylindrical woven filter screen.

6. The screening device for black soldier fly larvae after breeding according to claim 1, characterized in that The material is divided into four parts: ① Impurities larger than 10mm are processed separately ② Impurities larger than 4mm ③ Black soldier flies and impurities between 2.5mm and 4mm ④ Impurities smaller than 2.5mm.

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