CN103240145B - A urea-formaldehyde foam plant cultivation substrate pulverizer - Google Patents

Abstract

The invention relates to a urea-formaldehyde foam plant cultivation substrate pulverizer, which is characterized in that it includes an inclined crushing cylinder, the front end of which is short and provided with an upper feed inlet welded with a feeding hopper, the middle of the crushing cylinder is provided with a transparent observation window, and the end of the crushing cylinder is When the high setting is set, the discharge port is opened and a discharge sleeve is welded, and a pull-out screen is set in the discharge sleeve. The upper end of the crushing cylinder is connected to a frequency conversion motor governor through a platform, and its output end is connected to a small pulley, and the small pulley is connected to a large pulley through a belt; the large pulley is connected to a main shaft, and the main shaft penetrates into the crushing cylinder to rotate and connect; the two ends of the main shaft are respectively welded There are several pairs of stirring teeth arranged at intervals between the two augers, and each pair of stirring teeth is arranged symmetrically in the radial direction, and each pair of stirring teeth and the adjacent stirring teeth are arranged at 90° to each other; The fixed bracket is connected with a pair of front wheels, the rear end is provided with a height adjusting bracket connected with a pair of rear wheels, and a control panel is arranged on the crushing cylinder. The invention can be widely used in the pulverization of urea-formaldehyde foam substrates with different particle sizes.

Description

A urea-formaldehyde foam plant cultivation substrate pulverizer

technical field

The invention relates to a pulverizing device, in particular to a urea-formaldehyde foam plant cultivation substrate pulverizer for agriculture and forestry cultivation.

Background technique

Urea-formaldehyde foam is a kind of plant cultivation substrate, which has light texture, good water absorption and water retention, stable structure, low price, simple manufacturing process, and natural decomposition in the soil, saving labor, plant, fertilizer and water in the cultivation process , No pests, no weeds, etc., can be used in plant seedlings, cultivation, improvement of degraded cultivated land, roof greening, water surface greening, green plant landscape modeling in city squares and other fields. The matrix material is made of urea-formaldehyde resin through a foaming molding process, and the initial product is in block shape, which needs to be pulverized and screened to obtain a grain shape suitable for plant growth. The pulverization equipment in the prior art generally completes the pulverization by quickly hitting the object with internal stirring teeth or paddles, while the urea-formaldehyde foam matrix has a low bulk density and low strength. Particles with a particle size of 3mm account for 40%, particles with a particle size of 3mm to 5mm account for 40%, and particles with a particle size of 5mm to 10mm account for 20%. It is difficult to achieve the required crushing effect with other crushing equipment, and the crushing principle and control of other crushing equipment The method is also difficult to control the particle size of the urea-formaldehyde foam cultivation substrate.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a urea-formaldehyde foam plant cultivation substrate pulverizer capable of adjusting the particle size and ratio of urea-formaldehyde foam as required.

In order to achieve the above object, the present invention adopts the following technical solutions: a urea-formaldehyde foam plant cultivation substrate pulverizer, which is characterized in that it includes a crushing cylinder arranged obliquely, the front end of the crushing cylinder is short, and an upwardly opened feeding There is a feed hopper welded on the outer periphery of the inlet, a transparent observation window is set on the top surface of the middle part of the crushing cylinder, the end of the crushing cylinder is high, and a discharge opening that opens downward is provided at the bottom. There is a discharge sleeve welded on the outer periphery of the feed port, and a screen mesh that can be drawn is set inside the discharge sleeve; a power fixed platform is fixedly connected above the end of the crushing cylinder, and the top of the fixed platform is fixedly connected to a A variable frequency motor governor, the output end of the variable frequency motor governor is connected to a small pulley, and the small pulley is connected to a large pulley through a belt; a main shaft is connected to the large pulley, and the main shaft penetrates into the crushing cylinder through a bearing The two ends of the main shaft are respectively welded with a front and rear end auger, and several pairs of stirring teeth are arranged axially between the front and rear end augers, and each pair of the stirring teeth The teeth are arranged symmetrically in the radial direction, and each pair of the stirring teeth and the adjacent stirring teeth are arranged at a 90° intersection; For the front wheels, a height adjustment bracket is provided at the bottom rear end of the crushing tube, and a pair of rear wheels are connected to the bottom of the height adjustment bracket, and a control panel for controlling the variable frequency motor governor is provided on the crushing tube.

The diameter of the crushing cylinder is set in the range of 0.25-0.35m, the length is set in the range of 2.5-4m, and the height adjustment bracket adjusts the inclination angle of the crushing cylinder to vary within the range of 15°-30°.

The feed hopper can be one of a square cone bucket and a circular cone bucket, and its height should be greater than 0.8 meters.

The lengths of the front and rear augers on the main shaft are respectively set in the range of 0.5-1.5m, the spacing of the stirring teeth is in the range of 0.05-0.15m, the shape of the stirring teeth can adopt various structures, and the diameter of the main shaft A straight bar is inserted upwards, and two cross bars are respectively arranged at intervals at the two ends of the straight bar.

The aperture of the mesh of the screen is set in the range of 3-15mm.

The speed of the variable frequency motor governor can be adjusted within the range below 600 rpm.

The present invention has the following advantages due to taking the above technical scheme: 1. The present invention can well control the ratio and the particle diameter of the pulverized urea-formaldehyde foam particles owing to the adoption of a variable frequency motor governor to regulate the rotational speed of the pulverizer. 2. In the present invention, a straight rod is inserted radially into the main shaft in the middle of the crushing cylinder, and two cross bars are respectively arranged at both ends of the straight rod, so that a stirring tooth is formed, and the stirring tooth is controlled by a frequency conversion motor governor, Break the urea-formaldehyde foam, and then pushed by the auger, the urea-formaldehyde foam passes through the screen set in the discharge sleeve. According to the needs of the particle size of the plant cultivation substrate, multiple screens with different mesh apertures can be set, so it can be achieved. Further pulverize and control the particle size of the pulverized particles, and can be used directly without sieving and grading, providing the best cultivation substrate conditions for plant growth. 3. Since the height of the feeding hopper is set to be greater than 0.8 meters in the present invention, which is longer than the arms of ordinary workers, the hands will not be hurt during feeding during the crushing work, and the safety is good. 4. In the present invention, since the front and rear augers are connected to the two ends of the main shaft, the urea-formaldehyde foam can be quickly fed at the feed port, the front-end auger performs primary crushing and feeding, and the rear auger pushes the urea-formaldehyde foam to wear quickly. The sieve is discharged from the discharge port to improve production efficiency. 5. Since the present invention adopts a height-adjustable bracket at the bottom of the rear part of the crushing cylinder, the inclination angle of the crushing cylinder can be adjusted at any time according to the crushing situation to control the amount of material in the crushing cylinder, the discharge speed and the degree of crushing. There is a transparent observation window on the top. In order to reduce dust, a cloth bag is set at the discharge port. Therefore, the particle size and output speed of urea-formaldehyde foam particles can be controlled at any time through the observation window by adjusting the inclination angle of the crushing cylinder. There is no dust in the room. The invention can be widely used in crushing urea-formaldehyde foam plant cultivation substrates with different particle sizes.

Description of drawings

Fig. 1 is a structural representation of the present invention

Fig. 2 is a schematic diagram of the connection of the stirring tooth structure of the present invention

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, the present invention includes a crushing cylinder 1 arranged obliquely. The front end of the crushing cylinder 1 is short, and an upper opening 2 is provided. 1. A transparent observation window 4 is arranged on the top surface of the middle part. The end of the crushing cylinder 1 is high, and the bottom is provided with a discharge port 5 which opens downward. A square discharge sleeve 6 is welded on the outer periphery of the discharge port 5, and a screen 7 which can be pulled and replaced is arranged in the discharge sleeve 6. A power fixed platform 8 is fixedly connected above the end of the crushing cylinder 1, and a variable frequency motor governor 9 is fixedly connected to the top of the fixed platform 8 by bolts. The output end of the variable frequency motor governor 9 is connected to a small pulley 10, which 10 connects a large belt pulley 11 by belt. A main shaft 12 is connected on the large belt pulley 11, and the main shaft 12 penetrates the crushing cylinder 1 and is connected in the crushing cylinder 1 through bearing rotation. Weld a front and rear auger 13,14 respectively at the two ends of the main shaft 12, several pairs of stirring teeth 15 are arranged at an axial interval between the front and rear auger 13,14, and each pair of agitating teeth 15 is radially It is arranged symmetrically, and each pair of stirring teeth 15 and adjacent stirring teeth 15 are intersecting each other at 90°. A fixed bracket 16 is arranged at the front end of the bottom of the crushing tube 1, the bottom of the fixed bracket 16 is connected to a pair of front wheels 17, and the rear end of the bottom of the crushing tube 1 is provided with a height adjusting bracket 18, and the bottom of the height adjusting bracket 18 is connected to a pair of rear wheels 19. 1 is provided with a control panel 20 for controlling the variable frequency motor governor 9.

In the above embodiment, the diameter of the crushing cylinder 1 is set in the range of 0.25-0.35m, and the length is set in the range of 2.5-4m. The inclination angle of the crushing cylinder 1 is adjusted within the range of 15°-30° through the height adjustment bracket 18 to control the material advance speed.

In the above-mentioned embodiment, the shape of the feed hopper 3 can be set as a square cone bucket, and can also be set as a circular cone bucket, and its height should be set to be greater than 0.8 meters.

In the above-mentioned embodiment, the lengths of the front and rear augers 13 and 14 on the main shaft 12 are respectively set in the range of 0.5 to 1.5 m, the spacing of the stirring teeth 15 is in the range of 0.05 to 0.15 m, and the shape of the stirring teeth 15 can adopt various structures , for example: as shown in FIG. 2 , a straight rod 21 is inserted in the radial direction of the main shaft 12 , and two horizontal rods 22 are respectively arranged at intervals at both ends of the straight rod 21 .

In the above-mentioned embodiment, according to the needs of the particle size of the plant cultivation substrate, a plurality of screens 7 with different meshes can be provided, and the apertures of the screens 7 are set in the range of 3-15 mm.

In the above embodiment, the speed of the variable frequency motor governor 9 can be adjusted within a range below 600 rpm.

The pulverizer using method of the present invention comprises the following steps:

1) Insert the screen 7 into the square discharge sleeve 6, then put the cloth receiving bag on the bottom opening of the square discharge sleeve 6, and tighten the bag mouth;

2) Start the variable frequency motor governor 9, and manually put urea-formaldehyde foam blocks of different sizes and diameters from 0.1m to 0.5m into the conical feed hopper 3;

3) The urea-formaldehyde foam block is squeezed in by the front-end auger 13, crushed by the stirring teeth 15, and then squeezed by the rear-end auger 14, and the crushed urea-formaldehyde foam particles are quickly pushed through the screen 7 to enter In the cloth receiving bag;

4) After completing all the crushing tasks, turn off the frequency conversion motor speed controller 9 through the control panel 20, and then remove the cloth material receiving bag for packaging and sealing. Continuous production can also be carried out without stopping the machine, and can be packaged on the go.

Above-mentioned each embodiment is only for illustrating the present invention, wherein the structure of each component, connection mode etc. all can be changed to some extent, every equivalent conversion and improvement carried out on the basis of the technical solution of the present invention, all should not be excluded from the present invention. outside the scope of protection of the invention.

Claims (7)

1. A urea-formaldehyde foam plant cultivation substrate pulverizer, is characterized in that: it comprises the crushing tube of a slanting arrangement, the front end of described crushing tube is short, is provided with an upwardly opened feed inlet, and described feed inlet periphery is welded with a In the feeding hopper, a transparent observation window is provided on the top surface of the middle part of the crushing cylinder, the end of the crushing cylinder is high, and a discharge port opening downward is provided at the bottom, and a discharge sleeve is welded on the periphery of the discharge port. A screen mesh that can be pulled is arranged in the discharge sleeve; a power fixed platform is fixedly connected above the end of the crushing cylinder, and the top of the fixed platform is fixedly connected with a variable frequency motor governor by bolts, and the variable frequency motor The output end of the governor is connected to a small pulley, and the small pulley is connected to a large pulley through a belt; a main shaft is connected to the large pulley, and the main shaft penetrates into the crushing cylinder and is connected to the crushing cylinder through bearing rotation; The two ends of the main shaft are respectively welded with a front and a rear auger, and several pairs of stirring teeth are arranged at axial intervals between the front and rear augers, and each pair of agitating teeth is arranged symmetrically in the radial direction, and each The stirring teeth and the adjacent stirring teeth are intersected at 90°; a fixed bracket is provided at the front end of the bottom of the crushing tube, and a pair of front wheels are connected to the bottom of the fixing bracket, and the rear end of the bottom of the crushing tube is A height adjustment bracket is provided, the bottom of the height adjustment bracket is connected to a pair of rear wheels, and a control panel for controlling the variable frequency motor governor is arranged on the crushing cylinder. 2. A urea-formaldehyde foam plant cultivation substrate pulverizer as claimed in claim 1, characterized in that: the diameter of the crushing cylinder is set in the range of 0.25-0.35m, the length is set in the range of 2.5-4m, and the height adjustment bracket is adjusted The inclination angle of the crushing cylinder varies within the range of 15°-30°. 3. A urea-formaldehyde foam plant cultivation substrate pulverizer as claimed in claim 1, wherein the feed hopper is one of a square cone bucket and a circular cone bucket, and its height should be greater than 0.8 meters. 4. A urea-formaldehyde foam plant cultivation substrate grinder as claimed in claim 1, characterized in that: the lengths of the front and rear end augers on the main shaft are respectively set in the range of 0.5 to 1.5 m, and the distance between the stirring teeth The range of 0.05-0.15m, the shape of the stirring teeth adopts various structures, the main shaft is inserted into a straight rod in the radial direction, and two horizontal rods are respectively arranged at intervals at the two ends of the straight rod. 5 . A urea-formaldehyde foam plant cultivation substrate pulverizer according to claim 1 , 2 , 3 or 4 , characterized in that: the aperture of the screen mesh is set in the range of 3-15 mm. 6. A urea-formaldehyde foam plant cultivation substrate pulverizer according to claim 1 or 2 or 3 or 4, characterized in that: the speed of the variable frequency motor governor is adjusted within the range below 600 rpm. 7. A urea-formaldehyde foam plant cultivation substrate pulverizer as claimed in claim 5, characterized in that: the speed of the variable frequency motor governor is adjusted within the range below 600 rpm.