CN203725213U - Straw biomass grinding device - Google Patents

Abstract

A straw biomass crushing device, comprising a silo supported by supporting legs, a top cover is provided on the upper part of the silo, and a grate plate is arranged in the silo to divide the silo into an upper silo and a lower silo. The silo is equipped with a cutting tool driven by the rotating shaft to rotate and cut. The side wall of the upper silo is provided with a feeding port and a material outlet; The hot air inlet connected to the hot air source. The utility model divides the inner space of the hopper into two parts, the upper hopper and the lower hopper, through the grate plate. The material is crushed in the upper hopper, and the hot air enters it to dry the material during the crushing process. When the material is crushed to a qualified particle size Finally, it will be taken away by the airflow blown by the blower, and the materials that do not meet the specifications will remain in it and continue to be crushed. This not only improves the crushing efficiency and the quality of the crushed materials, but also avoids the waste of materials.

Description

A straw biomass crushing device

technical field

The utility model relates to the field of straw-like biomass processing and molding, in particular to a straw-like biomass crushing device.

Background technique

Biomass includes several categories such as organic matter (such as plants, animals and their excrement), garbage and organic wastewater produced by plants through photosynthesis. Biomass energy comes from the sun, so biomass energy is a type of solar energy. Biomass is the most important absorber and storage of solar energy. Biomass can accumulate solar energy through photosynthesis and store it in organic matter. In the prior art, biomass is widely used to prepare pellet feed and fuel.

Straw biomass must be crushed before being used. The existing crushing equipment only uses mechanical force to crush the straw, so the crushing efficiency is not high due to the high moisture content of the straw biomass before crushing, and it will also make the The crushing effect is not good, the length of the crushed materials is different, and the fine particle materials may be lost to cause waste of raw materials.

Utility model content

In order to solve the problems of poor crushing effect and serious waste of materials caused by the high moisture content of the straw biomass crushing device in the prior art, the utility model provides a straw biomass crushing device, which is added for The dry hot air can not only dry while crushing, but also bring the fine particle materials produced after crushing into the next process, avoiding the waste of these fine particle materials.

The technical scheme adopted by the utility model to solve the above technical problems is: a straw-like biomass crushing device, including a silo supported by supporting legs, a top cover is provided on the upper part of the silo, and a general feeder is arranged inside the silo. The bin is divided into the grate plate of the upper bin and the lower bin. The upper bin is equipped with a knife driven by a rotating shaft to perform rotary cutting, and the side wall of the upper bin is provided with a feeding port and an outlet; The side walls of the lower hopper are respectively provided with an air hole connected with a blower and a hot air inlet connected with a hot air source.

The discharge port is arranged close to the top cover, and the top cover has an inverted cone structure so that the pulverized material can enter the discharge port.

Temperature and pressure measuring elements for measuring the temperature and pressure in the lower hopper are also arranged in the lower hopper.

The rotating shaft is driven by a motor through a speed change mechanism to realize the adjustment of the rotating speed.

The lower hopper is an inverted conical structure.

Beneficial effects: the utility model divides the inner space of the hopper into two parts, the upper hopper and the lower hopper, through the grate plate. The material is crushed in the upper hopper, and the hot air enters it to dry the material during the crushing process. When the material is crushed to The qualified particle size will be taken away by the air blown by the blower, and the materials that do not meet the specifications will remain in it and continue to be crushed. This not only improves the crushing efficiency and the quality of the crushed materials, but also avoids the waste of materials.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Reference signs: 1, silo, 2, top cover, 3, discharge port, 4, cutter, 5, grate plate, 6, air hole, 7, hot air inlet, 8, rotating shaft, 9, feeding port, 10. Temperature measuring and pressure measuring components.

Detailed ways

As shown in the figure, a straw-like biomass crushing device includes a silo 1 supported by supporting legs. The upper part of the silo 1 is provided with a top cover 2, and the silo 1 is provided with a section that divides the interior of the silo 1 into upper and lower parts. The grate plate 5 of the feed bin and the lower feed bin, wherein, the upper feed bin is provided with a cutter 4 driven by a rotating shaft 8 for rotary cutting, and the side wall of the upper feed bin is provided with a feeding port 9 and a discharge port 3 ; The side walls of the lower silo are respectively provided with an air hole 6 connected with a blower and a hot air inlet 7 connected with a hot air source.

The discharge port 3 is arranged close to the top cover 2 , and the top cover 2 has an inverted cone structure so that pulverized materials can enter the discharge port 3 .

The temperature and pressure measuring element 10 for measuring the temperature and pressure in the lower silo is also arranged in the lower hopper.

The rotating shaft 8 is driven by a motor through a speed change mechanism and realizes the adjustment of the rotational speed.

The lower hopper is an inverted conical structure.

In the utility model, fine air holes are distributed on the grate plate 5 to pass through the hot air and the air blown by the blower, but at the same time prevent the pulverized material from falling into the feeding bin. The airflow blown by the blower is mainly to take away the qualified materials, and also has the drying effect.

In the utility model, the rotating shaft 8 is driven by a motor-driven speed change mechanism, and the speed change mechanism includes a reducer, a shaft coupling, and a large and small gear group. The motor with a frequency converter can be used to adjust the output speed of the motor, thereby changing the rotation speed of the rotating shaft. Rotating speed.

Claims (5)

1. A straw-like biomass crushing device, comprising a silo (1) supported by supporting legs, the top of the silo (1) is provided with a top cover (2), characterized in that: the silo (1) is There is a grate plate (5) that divides the feed bin (1) into an upper feed bin and a lower feed bin, wherein the upper feed bin is provided with a cutter (4) that is driven by a rotating shaft (8) to rotate and cut. The side wall of the silo is provided with a feed port (9) and a discharge port (3); the side wall of the lower silo is respectively provided with an air hole (6) connected with a blower and a hot air flow connected with a hot air source. entrance (7). 2. A straw biomass crushing device according to claim 1, characterized in that: the discharge port (3) is set close to the top cover (2), and the top cover (2) is an inverted cone Shaped structure to facilitate crushed material into the discharge port (3). 3 . The straw biomass crushing device according to claim 1 , characterized in that: a temperature and pressure measuring element ( 10 ) for measuring the temperature and pressure in the lower hopper is also provided in the lower hopper. 4 . 4 . The straw-based biomass crushing device according to claim 1 , characterized in that: the rotating shaft ( 8 ) is driven by a motor through a speed change mechanism to adjust the rotation speed. 5. The straw-based biomass crushing device according to claim 1, characterized in that: the lower hopper is an inverted conical structure.